The road trip will take approximately 5 hours.
Two one-step equations:
a) 2x + 5 = 13
In this equation, the variable 'x' represents an unknown number. By performing one step of subtraction, we can find the value of 'x' that makes the equation true.
The solution is x = 4.
b) 3y - 7 = 16
Similar to the first equation, 'y' represents an unknown number.
By adding 7 to both sides of the equation, we can isolate the variable and solve for 'y.'
The solution is y = 7.
Two equations with fractions:
a) (1/3)x + 2 = 5
Here, the variable 'x' is multiplied by a fraction.
To isolate 'x,' we can subtract 2 from both sides and then multiply both sides by the reciprocal of 1/3, which is 3/1.
The solution is x = 9.
b) (2/5)y - 3 = 1
In this equation, 'y' is multiplied by a fraction.
We can isolate 'y' by adding 3 to both sides and then multiplying both sides by the reciprocal of 2/5, which is 5/2.
The solution is y = 4.
One equation with the distributive property:
a) 2(x + 3) = 10
This equation demonstrates the distributive property.
By applying it, we multiply 2 by both x and 3, resulting in 2x + 6 = 10.
We can then solve for 'x' by subtracting 6 from both sides.
The solution is x = 2.
One equation with decimals:
a) 0.4x + 0.8 = 1.6
In this equation, 'x' is multiplied by a decimal.
To isolate 'x,' we subtract 0.8 from both sides and then divide both sides by 0.4.
The solution is x = 2.
Real-world problem:
Imagine you're planning a road trip.
The distance you'll be traveling is 250 miles, and your car's average speed is 50 miles per hour.
You want to determine how long the trip will take.
Let 't' represent the time in hours it will take to complete the trip.
The equation that represents this situation is:
50t = 250
By dividing both sides of the equation by 50, we find that t = 5.
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A spinner has six equal-sized sections. The sections are labeled red, blue, green, red, blue, and blue. How many outcomes are in the sample space?
The outcomes that are in the sample space are red, blue, green, red, blue, and blue.
How to determine the outcomes that are in the sample space?From the question, we have the following parameters that can be used in our computation:
Spinner = 6 sections
This means that
The spinner has 6 sections and as such, the sample size of the spinner is 6
The sample space are the colors in the spinner
So, we have
Space = red, blue, green, red, blue, and blue.
Hence, the outcomes that are in the sample space are red, blue, green, red, blue, and blue.
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A jogger running around a rectangular park takes a shortcut back to his car by running 53 meters from one corner to the opposite corner. If the park is 45 meters long, what is the width?
Answer:
28 meters Aprox
Step-by-step explanation:
To find the width of the rectangular park, we can use the Pythagorean theorem. The diagonal running from one corner to the opposite corner forms a right triangle with the length and width of the park.
Given:
Length of the park (L) = 45 meters
Diagonal distance (d) = 53 meters
Using the Pythagorean theorem:
d² = L² + W²
(53 meters)² = (45 meters)² + W²
2809 = 2025 + W²
W² = 2809 - 2025
W² = 784
Taking the square root of both sides:
W ≈ √784
W ≈ 28
Therefore, the width of the rectangular park is approximately 28 meters.
− 4 p − ( 5 p − 4 ) ≤ −4p−(5p−4)≤ 7 p + 10 + 3 p 7p+10+3p
Answer:
To solve the inequality −4p − (5p − 4) ≤ 7p + 10 + 3p, we can simplify and isolate the variable p. Let's work through the steps:
Step 1: Distribute the negative sign (-) inside the parentheses:
-4p - 5p + 4 ≤ 7p + 10 + 3p
Simplifying further:
-9p + 4 ≤ 10p + 10
Step 2: Group like terms by adding 9p to both sides of the inequality:
-9p + 9p + 4 ≤ 10p + 9p + 10
Simplifying further:
4 ≤ 19p + 10
Step 3: Subtract 10 from both sides of the inequality:
4 - 10 ≤ 19p + 10 - 10
Simplifying further:
-6 ≤ 19p
Step 4: Divide both sides of the inequality by 19:
-6/19 ≤ 19p/19
Simplifying further:
-6/19 ≤ p
So the solution to the inequality is p ≥ -6/19.
The rectangle below has an area of
15
�
4
+
35
�
3
+
20
�
2
15k
4
+35k
3
+20k
2
15, k, start superscript, 4, end superscript, plus, 35, k, cubed, plus, 20, k, squared.
The width of the rectangle is equal to the greatest common monomial factor of
15
�
4
,
35
�
3
,
15k
4
,35k
3
,15, k, start superscript, 4, end superscript, comma, 35, k, cubed, comma and
20
�
2
20k
2
20, k, squared.
What is the length and width of the rectangle?
Three rectangles of different sizes make up a larger rectangle. The larger rectangle's length is labeled length. The larger rectangle's width is labeled width. The smaller rectangle on the left has fifteen k to the fourth power inside it. The smaller rectangle in the middle has thirty five k cubed inside it. The smaller rectangle on the right has twenty k squared inside it.
Three rectangles of different sizes make up a larger rectangle. The larger rectangle's length is labeled length. The larger rectangle's width is labeled width. The smaller rectangle on the left has fifteen k to the fourth power inside it. The smaller rectangle in the middle has thirty five k cubed inside it. The smaller rectangle on the right has twenty k squared inside it.
Width
=
Width=start text, W, i, d, t, h, end text, equals
Length
=
Length=start text, L, e, n, g, t, h, end text, equals
The width of the rectangle is 5k² and the length of the rectangle is 3k² + 7k + 4.
How to explain the informationThe greatest common monomial factor of 15k⁴, 35k³, and 20k² is 5k². So the width of the rectangle is 5k².
The area of the rectangle is the product of its length and width. So the length of the rectangle is the area divided by the width. The area is 15k⁴ + 35k³ + 20k² and the width is 5k². So the length is:
= (15k⁴ + 35k³ + 20k²) / (5k²)
= 3k² + 7k + 4.
Therefore, the width of the rectangle is 5k² and the length of the rectangle is 3k² + 7k + 4.
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Suppose that the volume, V,
of a right circular cylinder is
1280 cubic centimeters and
the radius of its base is
8 centimeters. What is the
height of the cylinder?
D
Answer:
[tex]\huge\boxed{\sf h \approx 6.4\ cm}[/tex]
Step-by-step explanation:
Given data:Volume = v = 1280 cm³
Radius = r = 8 cm
π = 3.14
Required:Height = h = ?
Formula:V = πr²h
Solution:Put the given data in the above formula.
Finding height of cylinder.
1280 = (3.14)(8)²(h)
1280 = (3.14)(64)(h)
1280 = 200.96 (h)
Divide both sides by 200.961280 / 200.86 = h
h ≈ 6.4 cm[tex]\rule[225]{225}{2}[/tex]
ILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST SOMEBODY PLEASE PLEASE HELP ME IM BEGGING YOU
Answer:
B Mean: 17.5 | W Mean: 20.5 | B Mode: 15 | W Mode: 20.5 | B Mode: 14 & 15 | W Mode: 20 & 21 | B Range: 17 | W Range: 3
Step-by-step explanation:
These shapes are similar.
Find X.
X
9
5
27
15
21
Answer:
15
Step-by-step explanation:
50 Points! Multiple choice algebra question. Photo attached. Thank you!
Answer:
B. Similar
Step-by-step explanation:
The two spheres are similar, but not congruent. They have the same shape, but different sizes.
The scale factor between the two spheres is 9/6= 3/2, which means that the radius of the larger sphere is 3/2 times the radius of the smaller sphere.
Jane buys p packets of plain crisps and c packets
of cheese and onion crisps. Write down an
expression for the total number of packets of
crisps Jane buys.
The expression for the total number of packets of crisps that Jane buys is given as follows:
p + c.
How to obtain the total number of packets?The amounts of packets of crisps purchased are given as follows:
p packets of plain crisps.c packets of cheese and onion crisps.The expression for the total number of packets of crisps that Jane buys is given by the addition of these two amounts.
Hence the expression for the total number of packets of crisps that Jane buys is given as follows:
p + c.
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Line r has a slope of -6. Line s is parallel to line r. What is the slope of line s?
Thank you.
Answer:
-6
Step-by-step explanation:
Because two lines that are parallel have the same slope
Write a sine function with an amplitude of 5, a period of
Pi/8,and a midline at y = 7.
f(x) = 4sin(8x) + 5
f(x) = 5sin(16)+7
f(x) = 5sin(16x) + 4
f(x) = 4sin(8x) + 7
Answer:
[tex]\textsf{B)} \quad f(x) = 5 \sin (16x) + 7}[/tex]
Step-by-step explanation:
The sine function is periodic, meaning it repeats forever.
Standard form of a sine function[tex]\boxed{f(x) = A \sin (B(x + C)) + D}[/tex]
where:
A is the amplitude (height from the midline to the peak).2π/B is the period (horizontal distance between consecutive peaks).C is the phase shift (horizontal shift - positive is to the left).D is the vertical shift (y = D is the midline).Given values:
Amplitude, A = 5Period, 2π/B = π/8Phase shift, C = 0Vertical shift, D = 7Calculate the value of B:
[tex]\dfrac{2\pi}{B}=\dfrac{\pi}{8}\implies 16\pi=B\pi\implies B=16[/tex]
Substitute the values of A, B C and D into the standard formula:
[tex]f(x) = 5 \sin (16(x + 0)) + 7[/tex]
[tex]f(x) = 5 \sin (16x) + 7[/tex]
Therefore, the sine function with an amplitude of 5, a period of π/8, and a midline at y = 7 is:
[tex]\Large\boxed{\boxed{f(x) = 5 \sin (16x) + 7}}[/tex]
find the surface area
The surface area of the cylinder is: 156π.
Here, we have,
given that,
the cylinder has:
radius = 6 in
height = 10 in
now, surface area of the cylinder is:
SA = 2πrh + πr²
here, we have,
SA = 2π *6 * 10 + π6²
= 120π + 36π
= 156π
Hence, The surface area of the cylinder is: 156π.
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50 Points! Multiple choice geometry question. Photo attached. Thank you!
The value of angle BCD is determined as 108⁰.
option B is the correct answer.
What is the value of angle BCD?The value of angle BCD is calculated by applying intersecting chord theorem, which states that the angle at tangent is half of the arc angle of the two intersecting chords.
Also this theory states that arc angles of intersecting secants at the center of the circle is equal to the angle formed at the center of the circle by the two intersecting chords.
arc AB = m∠ACB
m∠ACB = 72⁰
The value of angle BCD is calculated as follows;
angle BCD = 180 - 72⁰ (sum of angles in a circle)
angle BCD = 108⁰
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100 Points! Geometry question. Photo attached. Write the equation of the parabola with the given conditions. Please show as much work as possible. Thank you!
Answer:
[tex](y - 4)^2 = -8(x - 2).[/tex]
Step-by-step explanation:
The equation of a parabola with a vertical axis of symmetry, vertex (h, k), and focus (h+a, k) is given by:
[tex](y - k)^2 = 4a(x - h)[/tex]
In this case, the vertex is (2, 4) and the focus is (0, 4).
Comparing this to the general equation, we have h=2, k=4, and h+a=0.
From h+a=0, we can solve for a:
a=-h = -2
Substituting the values of h, k, and p into the equation, we get:
[tex](y - 4)^2 = 4(-2)(x - 2)[/tex]
Simplifying further:
[tex](y - 4)^2 = -8(x - 2)[/tex]
Therefore, the parabola equation is[tex](y - 4)^2 = -8(x - 2).[/tex]
The distribution of scores on a history test is close to normal. The scores are adjusted so that the mean score is about =75
and the standard deviation is =5
. What percent of the scores fall between 65 and 75?
13.5%
27.0%
47.5%
The percentage of scores that fall between 65 and 75 is approximately [tex]2 \times 34 = 68%.[/tex]%
To determine the percentage of scores that fall between 65 and 75, we can use the properties of the normal distribution.
Mean score = 75
Standard deviation = 5
We know that the normal distribution is symmetric around the mean, and approximately 68% of the data falls within one standard deviation from the mean.
This means that about 34% of the scores fall between the mean and one standard deviation above the mean.
To calculate the percentage of scores between 65 and 75, we need to determine how many standard deviations away from the mean 65 and 75 are.
For 65:
(65 - 75) / 5 = -2
For 75:
(75 - 75) / 5 = 0
From the calculations, we can see that 65 is 2 standard deviations below the mean, and 75 is at the mean.
Since the distribution is symmetric, we can consider the percentage of scores between the mean and one standard deviation above the mean (34%) and double it to account for the scores between the mean and one standard deviation below the mean.
Therefore, the percentage of scores that fall between 65 and 75 is approximately 2 [tex]\times[/tex] 34% = 68%.
However, none of the given answer options match the calculated result. Therefore, none of the provided answer options accurately represent the percentage of scores between 65 and 75 based on the given information.
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Need the answer ASAP
Answer: A. x=3 y= -1 z=4
Step-by-step explanation:
I plugged it into my graphing calculator.
>2nd Matrix
>Edit >A
>choose 3x3
>Enter all coefficients as they look
>2nd Matrix
>Edit >B
>Choose 3x1
>Enter answers as they look
Go to main page
[tex][A]^{-1} [B]\\[/tex]
Answers end up being 3, -1, 4
I need some help with this
The solution of the given expression is,
x = 1/2.
The given expression is,
[tex]36^{3x} = 216[/tex]
Since we know that,
As the name indicates, exponents are utilized in the exponential function. An exponential function, on the other hand, has a constant as its base and a variable as its exponent, but not the other way around (if a function has a variable as its base and a constant as its exponent, it is a power function, not an exponential function).
Now we can write it as,
⇒ [tex]6^{2^{3x}} = 6^3[/tex]
⇒ [tex]6^{6x}} = 6^3[/tex]
Now equating the exponents we get,
⇒ 6x = 3
⇒ x = 3/6
⇒ x = 1/2
Hence,
Solution is, x = 1/2.
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WILL GIVE BRAINLIEST TO THE CORRECT ANSWER!!
This scale drawing shows a enlargement in a figure.
What is the value of x?
Enter your answer in the box.
X =
Answer:
18
Step-by-step explanation:
is a 1/3 scale
6-12-?
8-16-24
simple :)
Your professor has offered to give you $100, starting next year, and after that growing at 3% for the next 20 years. You would like to calculate the value of this offer by calculating how much money you would need to deposit in the local bank so that the account will generate the money you would need to deposit in the local bank so that the account will generate the same cash flows as he is offering you. Your local bank will guarantee a 6% annual interest rate so long as you have money in your account.
1. How much money will you need to deposit into your account today?
2. Using an excel spreadsheet, show explicitly that you can deposit this amount of money into the account, and every year withdraw what your brother has promised, leaving the account with nothing after the last withdrawal.
3. Change the bank annual interest rate from 6% to 10% what is the difference?
To calculate the amount of money needed to deposit into the account today, we can use the concept of present value. The present value represents the current value of future cash flows, taking into account the time value of money.
1. To calculate the present value of the cash flows, we can use the formula for the present value of an annuity:
PV = C * (1 - (1 + r)^(-n)) / r
Where PV is the present value, C is the cash flow per period, r is the interest rate per period, and n is the number of periods.
In this case, the cash flow per period is $100, the interest rate per period is 6% (0.06), and the number of periods is 20.
Plugging in the values into the formula:
PV = 100 * (1 - (1 + 0.06)^(-20)) / 0.06
Calculating this value gives us the amount of money needed to deposit into the account today.
2. To show explicitly using an Excel spreadsheet, you can set up a column for each year, starting from year 0 (the present year) to year 20. In the first row, enter the initial deposit amount calculated in step 1. In the subsequent rows, use a formula to calculate the value for each year by adding the interest earned and subtracting the annual withdrawal of $100. The last value in year 20 should be zero, indicating that the account will have no remaining balance after the last withdrawal.
3. If the bank's annual interest rate changes to 10%, you would need to recalculate the present value using the new interest rate. Repeat step 1 with the new interest rate of 10% (0.10) to find the updated amount of money needed to deposit into the account today. Compare this value with the previous amount calculated with a 6% interest rate to determine the difference.
which of the following is the slope of the line with equation -7x=6+3y
Answer:
Slope = -7/3
Step-by-step explanation:
-7x = 6 + 3y is in the standard form of a line, whose general equation is
Ax = C + By (it's sometimes written in terms of C and is Ax + By = C, but in this problem, it's written in terms of Ax).
We can find the slope of the line by converting from standard form to slope-intercept form, whose general equation is y = mx + b, where
m is the slope,and b is the y-intercept.Step 1: Subtract 6 from both sides:
(-7x = 6 + 3y) - 6
-7x - 6 = 3y
Step 2: Divide both sides by 3 to isolate y:
(-7x - 6 = 3y) / 3
-7/3x - 2 = y
Thus, the slope of the line is -7/3
Answer: Therefore the slope is [tex]-\frac{7}{3}[/tex].
Step-by-step explanation:
We can rewrite the equation -7x=6+3y in slope-intercept form y = mx + b, where the m is the slope of the line, and b is the y-intercept.
-7x = 6 + 3y
-6 -6
-7x - 6 = 3y
[tex]\frac{-7x}{3}-\frac{6}{3} =\frac{3y}{3}[/tex]
[tex]\frac{-7}{3}x-2 =y[/tex]
Therefore the slope is [tex]-\frac{7}{3}[/tex].
Describe the Transformations for 4 and 5
If h(x) = f(–x), this is saying that your graph will be reflected over the y-axis. In other words, the x-values of every point on the graph of y=f(x) will be switched to the opposite sign. The graph will be flipped over sideways.
For example, if (1,-4) is a point on y=f(x), then y=h(x) will have (–1,-4) on it.
If h(x) = –f(x), this is saying that your graph will be reflected over the x-axis. In other words, the y-values of every point on the graph of y=f(x) will be switched to the opposite sign. The graph will be flipped upside-down.
For example, if (1,–4) is a point on y=f(x), then y=h(x) will have (1,4) on it.
While you are given the equation for f(x) in each exercise, the function f(x) does not impact the transformation at all. What is said above is true for all functions.
If you want to graph them, then for 4:
f(x) = -3 - x
h(x) = f(-x) = -3 + x
For #5:
f(x) = 1/3 x + 1
h(x) = -f(x) = -1/3 x - 1
Find x (circle)
(Btw I don’t know if 5.6 is correct so just ignore that)
Answer:
A. 11.2
Step-by-step explanation:
But this has nothing to do with 5.6 × 2. Erase that! Lol.
You have a right triangle here. The only thing to do with the circle is that there are two radii (plural of radius) shown. So they have to be the same measure.
The unmarked "bottom" of the triangle, the short leg, is a radius, so it too, is 8.4.
The hypotenuse of the right triangle, the side on the right, the longest side is 5.6 + 8.4.
The hypotenuse is 14.
Let's do some Pythagorean Theorem.
Leg^2+ leg^2=hypotenuse^2
you know,
a^2 + b^2 = c^2
fill in what we know.
8.4^2 + b^2 = 14^2
simplify.
70.56 + b^2 = 196
subtract 70.56
b^2 = 125.44
squareroot both sides
b = 11.2
Solve for angles x and y in the triangle below. Round your angle to the nearest whole degree.
Solve for both x and y
[tex]\tan(y )=\cfrac{\stackrel{opposite}{6}}{\underset{adjacent}{4}} \implies \tan( y )= \cfrac{3}{2} \implies \tan^{-1}(~~\tan( y )~~) =\tan^{-1}\left( \cfrac{3}{2} \right) \\\\\\ y =\tan^{-1}\left( \cfrac{3}{2} \right)\implies y \approx 56.31^o \\\\[-0.35em] ~\dotfill\\\\ \tan(x )=\cfrac{\stackrel{opposite}{4}}{\underset{adjacent}{6}} \implies \tan( x )= \cfrac{2}{3} \implies \tan^{-1}(~~\tan( x )~~) =\tan^{-1}\left( \cfrac{2}{3} \right) \\\\\\ x =\tan^{-1}\left( \cfrac{2}{3} \right)\implies x \approx 33.69^o[/tex]
Make sure your calculator is in Degree mode.
What is n^2-11n+10
Please explain step by step and detailed to get the answer
The factored expression of n² - 11n + 10 is (n - 10)(n - 1)
How to factorize the expressionFrom the question, we have the following parameters that can be used in our computation:
n² - 11n + 10
To determine the pair of factors to factor the expression, we find two expressions
That must add up to -11nThat must mutiply to 10x²using the above as a guide, we have the following:
The expressions are -10n and -n
So, we have
n² - 11n + 10 = n² - 10n - n + 10
When factored, we have
n² - 11n + 10 = (n - 10)(n - 1)
Hence, the factored expression of n² - 11n + 10 is (n - 10)(n - 1)
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A rectangular prism measures 3 ft by 6 ft by 5 ft. If the dimensions of the box were all quadrupled, how would the surface area of the box change?
1.The new surface area would be 16 times the original surface area.
2.The new surface area would be quadruple the original surface area.
3.The surface area would not change.
4.The new surface area would be 12 times the original surface area.
To determine how the surface area of a rectangular prism changes when all dimensions are quadrupled, we need to compare the original surface area to the new surface area.
The original surface area of the rectangular prism is given by:
SA_original = 2lw + 2lh + 2wh
where l, w, and h represent the length, width, and height of the prism, respectively.
In this case, the dimensions of the original box are:
Length (l) = 3 ft
Width (w) = 6 ft
Height (h) = 5 ft
Substituting these values into the formula, we have:
SA_original = 2(3)(6) + 2(3)(5) + 2(6)(5)
= 36 + 30 + 60
= 126 square feet
Now, if we quadruple all the dimensions of the box, the new dimensions would be:
Length (l_new) = 4(3) = 12 ft
Width (w_new) = 4(6) = 24 ft
Height (h_new) = 4(5) = 20 ft
The new surface area of the enlarged box is given by:
SA_new = 2(l_new)(w_new) + 2(l_new)(h_new) + 2(w_new)(h_new)
= 2(12)(24) + 2(12)(20) + 2(24)(20)
= 576 + 480 + 960
= 2016 square feet
Comparing the original surface area (SA_original = 126 sq ft) to the new surface area (SA_new = 2016 sq ft), we can see that SA_new is 16 times greater than SA_original.
Therefore, the correct answer is:
1. The new surface area would be 16 times the original surface area.
A 27 - foot ladder is leaning against the wall. If the top of the ladder touches 22.5 feet up the wall, what is the angle evaluation of the ladder
Answer:
Step-by-step explanation:
A rhombus with horizontal
diagonal length 2 centimeters
vertical diagonal length 3 centimeters.
Find the area of the rhombus-shaped keychain.
3 cm2
5 cm2
6 cm2
12 cm2
The area of the Rhombus-shaped keychain is 3 square centimeters.
The area of the rhombus-shaped keychain,
we can use the formula:
Area = (diagonal1 * diagonal2) / 2
Given that the horizontal diagonal has a length of 2 centimeters and
the vertical diagonal has a length of 3 centimeters,
we can substitute these values into the formula:
Area = (2 * 3) / 2
= 6 / 2
= 3 cm^2
Therefore, the area of the rhombus-shaped keychain is 3 square centimeters.
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A sample of 22 observations selected from a normally distributed population produced a sample variance of 18 . a. To see if the population variance differs from 14 write the null and alternative hypotheses. b. Using �=.05α=.05, find the critical values of �2χ2. Display the chi-square distribution curve's rejection and nonrejection areas. c. Determine the test statistic �2χ2 value. d. Will you reject the null hypothesis presented in component an at a 5% significance level?
The degrees of freedom is 21, the critical values correspond to the points where the chi-square distribution curve separates the rejection and non-rejection areas and chi-square test statistic is 27.
The null and alternative hypotheses can be stated as follows:
Null Hypothesis (H0): The population variance is equal to 14.
Alternative Hypothesis (Ha): The population variance differs from 14.
To find the critical values of χ2 with α = 0.05, we need to determine the degrees of freedom first.
For a sample variance, the degrees of freedom (df) is given by (n - 1), where n is the sample size.
In this case, n = 22, so the degrees of freedom is 21.
Using a chi-square table or statistical software, we can find the critical values for a chi-square distribution with 21 degrees of freedom and α = 0.05.
The critical values correspond to the points where the chi-square distribution curve separates the rejection and non-rejection areas.
To determine the test statistic χ2 value, we need to calculate the chi-square test statistic using the given information.
The chi-square test statistic is calculated as:
χ2 = (n - 1) ×(sample variance) / (population variance)
Plugging in the values, we have:
χ2 = (22 - 1) × 18 / 14
=27
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10 cm
15 cm
17 cm
5 cm
What is the volume of this figure?
6 cm
10 cm
The Volume of Trapezoidal prism is 420 cm².
From the given figure we can write the dimension of the prism as
a = 5, b=15, c= 15, d= 15
h= 7 and l = 6 cm
Now, Volume of Trapezoidal prism
= 1/2 (a+b) x h x l
= 1/2 (5+15) x 7 x 6
= 1/2 x 20 x 42
= 10 x 42
= 420 cm²
Thus, the Volume of Trapezoidal prism is 420 cm².
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a) Su-Lo scored 45% in her test out of 80.
what mark did she
score?
Answer:
Step-by-step explanation:
To calculate Su-Lo's score on the test, we can multiply her percentage by the total marks for the test.
Su-Lo scored 45% out of 80, so her score can be calculated as follows:
Score = Percentage × Total marks
Score = 45% × 80
To find the score, we need to convert the percentage to a decimal by dividing it by 100:
Score = (45/100) × 80
Score = 0.45 × 80
Score = 36
Therefore, Su-Lo scored 36 marks on the test.