Answer:
10/4 equals 2 1/2 when simplified.
Step-by-step explanation:
10/4 = 2 2/4 or 2 1/2 when simplified.
This is because, 4 x 2 = 8, and 8 + 2 (or 1/2 of 4) = 10.
Hope this helps! :D
How are the figures similar?Explain
Answer:
Yes, the given figure are similar but not congruent. All the edges are making angles of 90°.
Order the side lengths EF, FG, and GE from least to greatest,
(Note that the figure is not drawn to scale.)
A
44
Answer:
Angle g=76 degrees
the order i would say is EF,GE,FG
tell what you get
You're welcome
Step-by-step explanation:
Triangle equal 180 degrees so 180-60-44=76
so last angle is 76 degrees
Consider a population with 3 observations: 6, 10 and 12. You use simple random sampling without replacement to select a sample of 2 observations. What is the probability that the sample mean is larger than 8?
Answer:
[tex]\dfrac{2}{3}[/tex]
Step-by-step explanation:
Given that:
The number of observations is:
6, 10, 12
If we are to use a simple random sampling without replacement, then we will have:
(6,10) (6,12) (10,12)
Here;
the sample size n = 2
The population size N = 3
For (6,10) ; The sample mean = [tex]\dfrac{6+10}{2}[/tex]
= [tex]\dfrac{16}{2}[/tex]
= 8
For (6,12) ; The sample mean = [tex]\dfrac{6+12}{2}[/tex]
= [tex]\dfrac{18}{2}[/tex]
= 9
For (10, 12) ; The sample mean = [tex]\dfrac{10+12}{2}[/tex]
= [tex]\dfrac{22}{2}[/tex]
= 11
The probability distribution of sample mean(x) is:
X 8 9 11
P(X=x) [tex]\dfrac{1}{3}[/tex] [tex]\dfrac{1}{3}[/tex] [tex]\dfrac{1}{3}[/tex]
Thus, the probability that the sample mean is larger than 8 is:
P(X> 8) = P(X = 9) + P(X + 11)
P(X> 8) = [tex]\dfrac{1}{3}+\dfrac{1}{3}[/tex]
P(X > 8) = [tex]\dfrac{1+1}{3}[/tex]
P(X> 8) = [tex]\dfrac{2}{3}[/tex]
your time to shine you smart and bright people hahah
Which section of the function is constant?
a. A
b. B
c. C
d. D
Answer:
c. C
Step-by-step explanation:
byy byyy..........
This portion of the graph is completely flat, and has a slope of 0. The slope is the rate of change. Any horizontal line has a slope of 0 (we can use the slope formula to prove this). The term 'constant" means "it does not change".
In contrast, sections A, B, and D are all increasing sections because they go uphill as we move from left to right. The slopes of each line segment are positive.
I need help as soon as possible
Use thUse the transformations on the function f(x) = x| to select the correct graph of
e transformations on the function f(x) = x| to select the correct graph of
Answer:
the graph that starts at (0,1) and has a rise/run of 1/3
Step-by-step explanation:
Samuel pays $59.99 plus $0.25 for each minute over 450 minutes for his cell phone plan. Monica
pays $64.99 plus $0.10 for each minute over 450 minutes for her cell phone plan. Which system
of equations represents this situation? Letx represent the number of minutes over 450
Answer:
D
Step-by-step explanation:
Samuel pays 59.99 for the 450 minutes but when he goes over he pays 0.25 for each minute he goes over. The same thing for Monica
The correct option is D
Given that,
Samuel pays $59.99 plus $0.25 for each minute over 450 minutes for his cell phone plan. Monica pays $64.99 plus $0.10 for each minute over 450 minutes for her cell phone plan.Based on the above information, the equation is as follows:
y = 59.99 + 0.25x
y = 64.99 + 0.10x
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Decide which of the two given prices is the better deal and explain why.
You can buy shampoo in a 6-ounce bottle for $3.49 or in a 15-ounce bottle for $9.59.
Round to the Nearest cent as needed.
I got $1.72 (rounded) per ounce for the 6-ounce bottle and $1.56 per ounce for the 15-ounce bottle, and answered that the 15-ounce bottle was the better deal, but it still says my answer is incorrect
Answer:
6-ounce bottle for $3.49 because its
.58 per ounce
3.49 divided by 6 = .58
Step-by-step explanation:
9.59 divided by 14 is .69 per ounce
chegg
Trapezoid RSTV with vertices R(-1,1), S(4, 1), T(4, -1), and V(-1, -3) and is reflected across y = -3
The vertices of the image are R'(x, y) = (- 1, - 7), S'(x, y) = (4, - 7), T'(x, y) = (4, - 5) and V'(x, y) = (- 1, - 3).
What are the coordinates of the vertices of the image by using a reflection formula?
In this question we know the locations of the four vertices of the trapezoid RSTV and we need to determine the coordinates of its image by using a reflection formula about an axis parallel to the y-axis, whose formula is described below:
P'(x, y) = P(x, y) - 2 · [P(x, y) - (p, k)]
Where:
p - x-Coordinate of the original point.k - y-Coordinate of the reflection axis.P(x, y) - Original pointP'(x, y) - Resulting pointNow we proceed to find the coordinates of the images:
R'(x, y) = (- 1, 1) - 2 · [(- 1, 1) - (- 1, - 3)]
R'(x, y) = (- 1, 1) - 2 · (0, 4)
R'(x, y) = (- 1, 1) + (0, - 8)
R'(x, y) = (- 1, - 7)
S'(x, y) = (4, 1) - 2 · [(4, 1) - (4, - 3)]
S'(x, y) = (4, 1) - 2 · (0, 4)
S'(x, y) = (4, 1) + (0, - 8)
S'(x, y) = (4, - 7)
T'(x, y) = (4, - 1) - 2 · [(4, - 1) - (4, - 3)]
T'(x, y) = (4, - 1) - 2 · (0, 2)
T'(x, y) = (4, - 1) + (0, - 4)
T'(x, y) = (4, - 5)
V'(x, y) = (- 1, - 3) - 2 · [(- 1, - 3) - (- 1, - 3)]
V'(x, y) = (- 1, - 3) - 2 · (0, 0)
V'(x, y) = (- 1, - 3)
The vertices of the image are R'(x, y) = (- 1, - 7), S'(x, y) = (4, - 7), T'(x, y) = (4, - 5) and V'(x, y) = (- 1, - 3).
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A hotel rents 240 240 rooms at a rate of $ 40 $40 per day. For each $ 2 $2 increase in the rate, four fewer rooms are rented. Find the room rate that maximizes daily revenue. The rate that maximizes revenue is $
Answer:
The daily rate that maximizes the revenue is $40 and the maximum revenue is $9600
Step-by-step explanation:
Given
[tex]Rooms = 240[/tex]
[tex]Price= \$40[/tex]
[tex]Increment = \$2[/tex]
First, we calculate the revenue.
[tex]Revenue (r) = Price (p) * Number\ of\ Rooms(n)[/tex]
[tex]r = p*n[/tex]
Let x be the change in rate.
i.e.
For every 2x increment in price (p) i.e. p + 2x
There will be 4 fewer rooms (n) i.e. n - 4x
So, the revenue is updated as:
[tex]r = (p + 2x) * (n - 4x)[/tex]
[tex]Price = 40[/tex]
So:
[tex]r = (40 + 2x) * (n - 4x)[/tex]
[tex]Rooms = 240[/tex]
So:
[tex]r = (40 + 2x) * (240 - 4x)[/tex]
Expand
[tex]r = 40 * 240 - 40 * 4x + 2x * 240 - 2x*4x[/tex]
[tex]r = 9600 - 160x + 480x - 8x^2[/tex]
Reorder
[tex]r = -8x^2 - 160x + 480x + 9600[/tex]
[tex]r = -8x^2 +320x + 9600[/tex]
The maximum of a function is calculated as:
[tex]Max = -\frac{b}{2a}[/tex]
In: [tex]r = -8x^2 +320x + 9600[/tex]
[tex]a = -8[/tex] [tex]b = 320[/tex] [tex]c = 9600[/tex]
So:
[tex]Max = -\frac{b}{2a}[/tex]
[tex]Max = -\frac{320}{-8}[/tex]
[tex]Max = \frac{320}{8}[/tex]
[tex]Max = 40[/tex]
To get the maximum revenue;
Substitute 40 for x in [tex]r = -8x^2 +320x + 9600[/tex]
[tex]r = -8(40)^2 + 320 * 40 + 9600[/tex]
[tex]r = 9600[/tex]
The daily rate that maximizes the revenue is $40 and the maximum revenue is $9600
What is the difference between the following two regression equations? Choose the correct answer below.
A. The first equation is for sample data; the second equation is for a population.
B. The first equation is for a population; the second equation is for sample data.
Answer:
The correct option is (A). The first equation is for sample data; the second equation is for a population.
Step-by-step explanation:
According to the scenario, the following would be represented as a sample and the population
Y with caret = b0 + b1x = sample
and
y = b0 + b1x = population
It is because if we considered the population than the expected value would be nearest and there is no need to determine the b0 and b1 value again. But in the case of the sample, the reestimation of the values would be determined again and again
Therefore the correct option is A.
6/7=y−3/7
y=?
Does anybody know what the answer to this question is?
If you know, please tell me. I'm really in a hurry.
"LAY
Marshall wants to buy a picture frame. The original price is $15,
How much will Marshall pay if he buys it during the sale?
SALE
25% off
original price!
Find an equation of the line that passes through ( -3,-10) and (7,-8). You do not need to simplify
The equation of line that passes through the given points is x-5y=47.
Given that the line that passes through ( -3,-10) and (7,-8).
The standard form of the line equation is ax+by+c = 0. Here a, b are the coefficients, x, y are the variables and c are the constant terms. It is a quadratic equation, of the variables x and y. The values of x and y represent the coordinates of the point on the line in the coordinate plane.
Firstly, we will find the slope of equation of line by using the given points.
(x₁,y₁)=(-3,-10) and (x₂,y₂)=(7,-8).
m=(y₂-y₁)/(x₂-x₁)
Now, we substitute the values, we get
m=(-8-(-10))/(7-(-3))
m=(-8+10)/(7+3)
m=2/10
m=1/5
Further, we will find the equation of line using the formula y-y₁=m(x-x₁).
Now, we will substitute the values , we get
y-(-10)=(1/5)(x-(-3))
y+10=(1/5)(x+3)
Further, we will multiply both sides by 5, we get
5(y+10)=x+3
5y+50=x+3
5y+50-50=x+3-50
5y=x-47
x-5y=47
Hence, the equation of line that passes through ( -3,-10) and (7,-8) is x-5y=47.
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Which rational expression is undefined when a=1
Answer:
[tex]\frac{10a + 6}{-a^2 + 1}[/tex] is undefined at a = 1
Step-by-step explanation:
Required
Which is undefined at a = 1
An expression is undefined when its denonimator equals 0.
So, we have to test the denominator of each.
(A): 7a + 7
This gives:
[tex]= 7(1) + 7[/tex]
[tex]= 7 + 7[/tex]
[tex]= 14[/tex]
(B): 5a - 10
This gives:
[tex]= 5(1) - 10[/tex]
[tex]= 5- 10[/tex]
[tex]= -5[/tex]
(C) -a² + 1
This gives
[tex]-(1^2) + 1[/tex]
[tex]= -1 + 1[/tex]
[tex]=0[/tex]
(D) 3a²
This gives:
[tex]= 3(1)^2[/tex]
[tex]= 3 * 1[/tex]
[tex]= 3[/tex]
Notice that only (C) equals 0.
Hence:
[tex]\frac{10a + 6}{-a^2 + 1}[/tex] is undefined at a = 1
Answer:
C
Step-by-step explanation:
HELP PLS!!!
Which expression shows how to convert 60 hours to days?
A 60 hours 1 hour 1 24 days
B 60 hours 1 day Х 1 24 hours
C 60 hours 24 hours X 1 1 day
D 60 hours 24 days 1 1 hour X
Answer:
B. [tex] \frac{60 hours}{1} \times \frac{1 day}{24 hours} [/tex]
Step-by-step explanation:
Converting 60 hours to days:
24 hours = 1 day
60 hours = x day
Cross multiply
[tex] 24 hours \times x = 60 hours \times 1 day [/tex]
Divide both sides by 24 hours
[tex] x = \frac{60 hours \times 1 day}{24 hours} [/tex]
Thus,
[tex] \frac{60 hours \times 1 day}{24 hours} = \frac{60 hours}{1} \times \frac{1 day}{24 hours} [/tex]
The expression that shows how to convert 60 hours to days is:
[tex] \frac{60 hours}{1} \times \frac{1 day}{24 hours} [/tex]
The mean of a set of 10 numbers is 22. Four of these
numbers (8, 12, 21, and 23) are removed from the set.
What is the mean of the six remaining numbers?
A. 19
B. 21
C. 26
D. 28
==========================================================
Explanation:
The mean of all ten numbers is 22.
This tells us the sum of those ten numbers is 10*22 = 220
Recall that
mean = (sum of items)/(number of items)
We take this process in reverse to find the sum.
In other words:
sum = (mean)*(number of items)
--------------
Now remove the elements {8,12,21,23} to get a new sum of:
220-8-12-21-23 = 156
Divide that smaller sum over 6 since removing 4 elements leaves us with 10-4 = 6 left over.
new mean = (new smaller sum)/(number of items)
new mean = (156)/(6)
new mean = 26
One number is twice another number and their sum is 36.
Which system of equations represents the word problem?
Ox+y = 36 and y = 2 x
Oy= 2 x and 2 x - y = 36
02x+y = 36 and x - y = 36
Answer:
12 and 24
Step-by-step explanation:
[tex]{ \tt{x = 2y - - - - (a)}} \\ { \tt{x + y = 36 - - - (b)}}[/tex]
Perform for eqn (b):
[tex]{ \tt{2y +y = 36}} \\ { \tt{3y = 36}} \\ { \tt{y = 12}}[/tex]
For x:
[tex]{ \tt{x = 2y}} \\ { \tt{x = 2 \times 12}} \\ { \tt{x = 24}}[/tex]
A chemist wants to mix a 10% acid solution with a 26% acid solution to obtain 16 liters of a 14% acid solution. How much of the 26% solution should she use?
You should put a lot of the 26% as it is necessary
There are 6 'blobs' in your bed. Each day the number of
blobs doubles. Create a table (with 4 rows) to represent
the number of blobs in your bed as a function of the
number of days that passed. Write an equation to
represent the scenario.
*How many blobs will be in your bed after 3 days?
Answer:
why the hell you got blobs in your bed?
Step-by-step explanation:
Write this number using digits: seventy-five thousand, four hundred thirty-seven
75,437
hope this helps
Determine whether the lines are parallel, perpendicular, or neither. Justify your answer. y = 2x - 8
Y = 1/2x + 6
⚠️if you answer correctly I will give you brainliest
Answer:
perpendicular
Step-by-step explanation:
it is perpendicular because you flipped and negative the slope. if it was parallel the slope would be the same with no negative
Least to greatest
-5 -5 12/15 5 28/40
The ranking of the given numbers from least to greatest is;
5, 5²⁸/₄₀, 5⁴/₅
How to rank numbers from least to greatest?
We are given the numbers as;
5, 5¹²/₁₅, 5²⁸/₄₀
Now, let us breakdown the mixed fractions for easier comparison with all numbers;
5¹²/₁₅ can be broken down into 5⁴/₅
For the second mixed fraction which is 5²⁸/₄₀;
5²⁸/₄₀ can be broken down into 5⁷/₁₀
Now, 7/10 is lesser than 4/5 and so 5⁴/₅ is greater than 5²⁸/₄₀. Thus, ranking of all numbers from least to greatest is; 5, 5²⁸/₄₀, 5⁴/₅
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I GIVE BRAINLILSET
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Answer:
647$ USD
Step-by-step explanation:
You add 4% of each sale to eachother and to the 375. goodluck!
Answer:
7171
Step-by-step explanation:
i added it all up and thats what i got hope this helps and if right can i have brainlyest.
What is the answer to -12 = 4(f - 6)
Answer:
f= 3
Step-by-step explanation:
-12 = 4f-24
+24. +24
----------------
12 = 4f
/4. /4
-----------
f= 3
Answer:
3
Step-by-step explanation:
-12 = 4(f - 6)
-12/4 = (4(f - 6))/4
-3 = f - 6
-3 + 6 = f - 6 + 6
3 = f
An items price is increased by $10 then decreased by $10. Is the decreas percent and the increase percent equal
The increased percent and decreased percent of an item are not equal.
What is Percent formula?
Percentage can be calculated by dividing the value by the total value, and then multiplying the result by 100.
Now,
Let the original price of an item = $100
After increased by $10,
Increased percent of an item = 10 * 10/100 = 10%
The new cost of an item = $100 + $10 = $110
After decreased by $10,
Decreased percent of an item = 10 * 10/110 = 9.1%
So, The increased percent and decreased percent of an item are not equal.
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I have to follow this direction to get the answer. I'm totally stuck
The simplified trigonometric expression is given as follows:
[tex]-sin{\theta}\tan{\theta}(1 - \csc{\theta})[/tex]
How to simplify the given trigonometric expression?The expression is given by:
[tex]\frac{\cos{\theta}}{1 + \csc{\theta}} \times \frac{1 - \csc{\theta}}{1 - \csc{\theta}}[/tex]
Applying the subtraction of perfect squares at the denominator, we have that the expression is given by:
[tex]\frac{\cos{\theta}(1 - \csc{\theta})}{1 - \csc^2{\theta}}[/tex]
Applying an identity, we have that:
[tex]1 - \csc^2{\theta} = -\cot^2{\theta}[/tex]
Hence the expression is:
[tex]-\frac{\cos{\theta}(1 - \csc{\theta})}{\cot^2{\theta}}[/tex]
cot = cos/sin, hence:
[tex]-\frac{sin^2{\theta}(1 - \csc{\theta})}{\cos{\theta}}[/tex]
tan = sin/cos, hence the simplified expression is:
[tex]-sin{\theta}\tan{\theta}(1 - \csc{\theta})[/tex]
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(4 points) [tex]^{\frac{1}{\sqrt{2}}}\int _y^{\sqrt{1-y^2}}e^{7x^2+7y^2}\:dxdy[/tex]Convert the integral to polar coordinates, getting where
You will find it easiest if you write the integral in the form.
∫??∫??13 ,∫??∫??1r3drdθ ,that is, with θ on the "outside" integral. Looking at your diagram, the minimum θ value in the region of integration is =0θ=0, which occurs along the x axis. The maximum θ value occurs at the point (1,1)(1,1), giving =/4θ=π/4. So we have∫/40∫??13 .∫0π/4∫??1r3drdθ .For any fixed θ value, the values of r in the region go from the vertical line =1x=1 to the semicircle. At =1x=1 we have =secr=secθ as you have noted. The easiest way to get the maximum r value is to draw a line from the origin at angle θ until it hits the semicircle, and a line from there to (2,0)(2,0). Then you can see in the diagram a right-angled triangle (because the angle in a semicircle is a right angle) with hypotenuse 22, and so we get max=2cosrmax=2cosθ. So the integral is∫/40∫2cossec13 .∫0π/4∫secθ2cosθ1r3drdθ .For sketching the graph,=2−2‾‾‾‾‾‾‾√⇒2−2+2=0⇒(−1)2+2=1 ,y=2x−x2⇒x2−2x+y2=0⇒(x−1)2+y2=1 ,and not forgetting that ≥0y≥0.
A rectangle's length is 4 feet more than its width. Write a quadratic function
that expresses the rectangle's area in terms of its width.
A. A(w) =v2-47
B. A(W) = 12 +41
C. A(W) =1+4
D. A(v) = lv