Mathematics High School

What’s the answer for this question?

Answers

Answer 1

Answer:

Step-by-step explanation:

you would put 4 in the x places and 2 in the yplaces and then you would distribute 4^2 +3(2)/4(2)

16+6/2=22/8=2 3/4

Related Questions

The value of expression when 5x²- 2 when x=3 is

Answers

Answer:

Step-by-step explanation:

Substitute x = 3 into the expression, that is

5(3)² - 2 = 5(9) - 2 = 45 - 2 = 43

Solve by FactoringSolve with the Quadratic Formula solve by Completing the Square find Discriminant
Let's solve your equation step-by-step.
5x2−2x=3 Step 1: Subtract 3 from both sides. 5x2−2x−3=3−35x2−2x−3=0 Step 2: Factor left side of equation. (5x+3)(x-1)=0 Step 3: Set factors equal to 0. 5x+3=0 or x−1=0x=−35 or x=1
Answer: x=−35 or x=1

Write an equation in point slope form of the line that passes through the point (2,-8) and had a slope of 4

Answers

Point slope: y - y1 = m(x - x1)
Plug those in
Solution: y + 8 = 4(x - 2)

The equation of a line in point-slope form is (y + 8) = 4(x - 2).

What are lines and their slopes?

We know lines have various types of equations, the general type is

Ax + By + c = 0, and the equation of a line in slope-intercept form is

y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

Given, A line passes through the point (x₁, y₁) ⇒ (2,-8) and had a slope of 4.

We know the equation of a line in point-slope form is (y - y₁) = m(x - x₁).

∴ The equation of this line is (y + 8) = 4(x - 2).

learn more about lines and slopes here :

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Need help on number 5!

Answers

a. To find the mean, you first have to add all of the numbers together. Keep in note that if there is more than 1 dot above the number, such as 2 or 3 dots, then you must add the the amount of dots there are above it. Next, you want to divide the total amount of the numbers by the total amount of numbers you have added to get this. That will be the mean. The mean represents the average amount of wage the college students earn during a 1-week span.

b. Next, you want to find the median. Put all of the numbers together in a line, ranging from smallest to largest. Whatever number is in the middle is going to be your median. Keep note for this as well that if there is, for example, 2 dots above the number, you will have to write the number two times. The median helps interpret the middle, and separates the lower, and high values.

c. No, a box plot is not the same as a dot plot. It can interpret the median, but not the mean. A box-and-whisker plot is usually used when you want to find the IQR (interquartile range).

Which letter represents where the number 29 lies?
A)А
B)B
C)C С
D)D

Answers

Answer:

Step-by-step explanation:

b IS THE ANSWER.

Answer:

Step-by-step explanation:

A health insurance plan has a $50 enrollment fee and a copayment of $5 for each doctor visit. The function f(x)=5x+50 gives the cost of x doctor visits. What is the cost for visiting the doctor 3 times?

Answers

Answer:

65 dollars

Step-by-step explanation:

Plug in the 3 as the x in the equation and solve.

f(x)=5(3)+50

f(x)=15+50

f(x)=65

And that's how you get the answer

The 7 dwarfs go to work whistling in a different order each day. How many days can they go without repeating an order?

Answers

Answer:

My thought is 7, but I may be very well wrong.

Step-by-step explanation:

HELPPPPPPPPPPPP MEEEEEEEEE PLZZZZZZZZZZ it is due soon:'(((((((((( if you answer it correctly ill give you bfrainly

Answers

Answer:

y = 65x + 250

Step-by-step explanation:

Let the linear equation representing the relation between total pay and number of computers sold be,

y = mx + c

Here, m = commission on every computer sold = slope of the linear function

c = weekly salary

y = total pay

x = number of computer sold each week

Since, slope of the line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by,

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

From the table attached,

Slope of the line passing through (4, 510) and (6, 640),

m = [tex]\frac{640-510}{6-4}[/tex]

= 65

Equation of the line will be,

y = 65x + c

Since, this line passes through (4, 510),

510 = 65(4) + c

c = 510 - 260

c = 250

Therefore, equation of the line will be,

y = 65x + 250

A farmer has 280 acres of land on which he plans to plant two different crops, crop A and crop B. For each acre of crop A he plants, his expenses are $25, and for each acre of crop B, his expenses are $30. The farmer has a limit of $10,000 for the expenses of planting the 280 acres. If a represents the acres of crop A and b represents the acre of crop B that the farmer plants, which of these represent the limits of a and b?

Answers

Answer:

a+b<280

25a+30b less than or equal too 10000

Step-by-step explanation:

Answer:

Step - by - step explanation.

WILL GIVE BRAINLEST IF RIGHT
Select all the expressions which are equivalent to –3(0.15 – 0.2 + 0.25p).
A. –0.45 – 0.6 + 0.25p
B. 0.15 – 0.75p
C. 3(0.15 + 0.2 + 0.25p)
D. –3(–0.05 + 0.25p)
E. –3(0.05 + 0.25p)

Answers

–3(0.15 – 0.2 + 0.25p) is equivalent to –3(-0.05 + 0.25p) and 0.15 – 0.75p

Equation

An equation is an expression used to show the relationship between two or more numbers and variables.

Given that:

–3(0.15 – 0.2 + 0.25p)

simplifying the expression:

= –3(-0.05 + 0.25p)

Further simplification gives:

= 0.15 – 0.75p

–3(0.15 – 0.2 + 0.25p) is equivalent to –3(-0.05 + 0.25p) and 0.15 – 0.75p

Find out more on Equation at: https://brainly.com/question/2972832

Answer: –3(–0.05 + 0.25p)

Step-by-step explanation:

please help I suck at math: solve the equation 3x+2=x+4(x+2)

Answers

Answer:

-3

Step-by-step explanation:

3x+2=x+4x+8

3x+2=5x+8

2=2x+8

-6=2x

-3=x

Help!! I am going to fail my class!!! I will mark you brainiest!
Between 1970 and 2000, the population of a city decreased by approximately 2% each year. In 1970 there were 600,000 people. What was the population in 2000? Write an exponential decay function and solve showing your work.

Answers

Answer:

600,000(.90) 327,290

Step-by-step explanation:

How do you do this one I tried all ways and it didn’t work

Answers

Answer:

Well, to start the angle supplementary to 94° is 86°.

86°+20°=106°

180°-106°=74°

x=74°

Step-by-step explanation:

Sorry if it's wrong

x+2/2x-6=3/8 solve using multiplication property of equality

Answers

The solution to the equation given as x+2/2x-6 = 3/8 is x = -34/5

What are expressions?

Expressions are mathematical statements that are represented by variables, coefficients and operators

How to solve using multiplication property of equality?

The equation is given as

x+2/2x-6=3/8

Apply the multiplication property of equality.

So, we have

8(x + 2) = 3(x - 6)

Open the brackets

8x + 16 = 3x - 18

Collect the like terms

5x = -34

Divide both sides by 5

x = -34/5

Hence, the solution to the equation given as x+2/2x-6 = 3/8 is x = -34/5

Answers

Answer:60 is the answer hope that helps

Step-by-step explanation:

plz help i will report if your not trying to answer

Answers

Answer:

number 5 is 1.24 x 10 (3)

number 6 is 1.53 x 10 (-4)

hoped that helped:)

Step-by-step explanation:

algebra 1
what are the answers for these :
1. Y is greater than 3 times x -4
2. Y is less than 2 times x + 5
3. Y is greater than or equal to -2 times x minus 6

i need help bad please and thank you !

Answers

Answer:

1.3x-4∠Y

2.y∠2x+5

3.y≥-2x-6

find the sum of the first 20 terms in the series. 6+3+3/2+3/4...

Answers

Answer:

6+3+3/2+3/4

=9+3/2+3/4

21/2+3/4

45/4

(Decimal: 11.25)

Step-by-step explanation:

x3 - 7x,
f(x) = 8,
2x + 3,
x < -3
- 3 < x < 3
x > 3

Answers

Answer:

I did the math and I believe that answer is : -12x4-5x

Step-by-step explanation:

23, f(x) = 4x- 25, f(x) = x2-3x + 10 26. 27. f(x) 3x2 29, f(x) = 2x3-5x2 + 4x-1 30. f(x) = x3-3x2 31, f(x)--2x3-8x2 + 6x + 36 28, f(x) = x3-x2-x + 1 For each function use the leading coefficient test to determine whether y → oo or y →-oo as x → oo. 33, y=2x3-x2 + 9 35. y =-3x4 + 5 34. y=-3x + 7 36, y = 6x4-5x2-1 38, y = 5x-7x4 37. y=x-3x3 For each function use the leading coefficient test to determine whether y → or y →

Subtract. Write your answer in the box below.
(22 -6x +9)-2(22-3x+1)

Answers

Answer:

-15

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define Expression

(22 - 6x + 9) - 2(22 - 3x + 1)

Step 2: Simplify

Distribute -2: 22 - 6x + 9 - 44 + 6x - 2Combine like terms (x): 22 + 9 - 44 - 2Combine like terms (Z): -15

Answer:

-15

Step-by-step explanation:

.
y = 2x - 4
3y + 21x = 15

Answers

Answer:

( 1 , -2 )

Step-by-step explanation:

(x ,y)

substitute the given number of y value

slove equation for x

sub the given number of x value

slove equation for y

ordered pair

check the solution

simplify the equation

the ordered pair is the solution

What is this equation in slope-intercept form of the line the past point to (2,-2) and is perpendicular to the liner represented by y=2/5 X +2

Answers

Answer:

y = -5/2x-2

Step-by-step explanation:

To solve the system of equations below, Lisa isolated the variable y in the first
equation and then substituted it into the second equation. What was the
resulting equation?
[2y = 6x
[x² + y = 28
OA. x²-3x = 28
B. x² + 3x = 28
OC. 9x² + 3x = 28
OD. 4x² = 28
C

Answers

The resulting equation after substitution in system of equations :2y = 6x , x² + y = 28 will be option B : x^2 + 3x = 28

What is Algebraic expression ?

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.

The given system of equation are :

2y = 6x.....(1)

[x² + y = 28.........(2)

also, Lisa isolated the variable y in the first equation and then substituted it into the second equation that is :

she substitute y = 3x in second equation :

x^2 + y =28

x^2 + 3x = 28

Therefore, the resulting equation after substitution will be option B : x^2 + 3x = 28

Read more about system of equations at :

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What is the point slope form of a line that has a slope of five and passes through the points 3,-4

Answers

Answer:

it would be, 5x-y=-19

Step-by-step explanation:

Use equation y-y1=m(x-x1)

Solve for s
2s = 6t+8w

Answers

Answer:

s = 3t + 4w

Step-by-step explanation:

2s = 6t + 8w

s = 3t + 4w

Answer:

s = 3t+4w

Step-by-step explanation:

2s = 6t+8w

s = (6t+8w) ÷ 2

(6t÷2=3t, 8w÷2=4w)

s = 3t + 4w

a man buys a car for 80000 Rs 20,000 more for repairing he sells it for rupees 125000 find its gain

Answers

Answer: 25%

The man buys the car for 80000 units.
For repairing the car, the man spends 20000 units.
The man sells the car for 125000 units.
To find:
The gain percent of the man.
Solution:
The man buys the car for 80000 units.
For repairing the car, the man spends 20000 units.
∴ Total expenditure of the man for the car_
(80000 + 20000) units.
= 100000 units.
The man sells the car for 125000 units.
∴ Gain = (125000 - 100000) units
= 25000 units.
∴ Gain % = (25000×100)/100000
= (25000/1000)
= 25 %.
∴ The gain of the man is 25 %

Which of the terms given can you write in the blank box so that the
equation will have infinitely many solutions?
4x – 36=(blank) (x-9)

Answers

the blank box should be equal to 4

Zane took three typing tests and recorded the results as shown.

Test

Number of

Words

Time

(minutes)

3

4

D

30

B

78

15

22

С

99

What was Zane's unit rate, in words per minute, on each test?

On which test does Zane have the highest unit rate?

Answers

Numbers aren't arranged properly so I'll try and do this. Please follow method as answer might differ cause of this

Test Number of Words Time(minutes)

A. 30. 4

B. 78. 15

C. 99. 22

Answer:

Step-by-step explanation:

To calculate Zane's unit rate/number of words per minute for which each test, we divide number of words in each test by time taken for that test

For test A, unit rate = 30 words/ 4 minutes = 7.5 words per minute

For test B, unit rate = 78 words/15 minutes = 5.2 words per minute

For test C, unit rate = 99 words/22 minutes= 4.5 words per minute

From the above Zane has the highest unit rate in test A and is therefore fastest in test A

-2,-5,-8,-11 41st term

Answers

Answer:

-122

Step-by-step explanation:

The common difference is

-5-(-2)

-3

a+(n-1)d

-2+(41-1)-3

-2+(-120)

-122

-122 I believe is the answer I hope this helps

do you like my drawings

Answers

Answer:

They won't load for me

Step-by-step explanation:

Answer:

Dangggg the best I have seen

Step-by-step explanation:

but this is better

PLEASE HELP! EASY MATH! GIVING BRAINLIEST!
Molly is painting a model house and needs to know how much paint she will need. She knows the surface area of the prism is 216 square inches and the surface area of the pyramid is 84 square inches.
1. Which surface is shared by the two solids? What are the dimensions of this surface?

2.There is another surface that Molly does not need to paint, because it wont show when she displays the model house. Describe that surface, and explain why it doesn't need to be painted.

3. To find the area Molly needs to paint, she should add the surface areas of both solids and subtract. Choose the correct answer.
A. twice the area of the triangle
B. twice the area of the square
C. three times the area of the square
D. the area of the square.

4. Find the area Molly needs to paint.

Answers

Part 1) The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid

Part 2) The dimensions of this surface are 6 in x 6 in

Part 3) Molly needs to paint 228 square inches

Step-by-step explanation:

The picture of the question in the attached figure

Part 1) Which surface is shared by the two solids?

we know that

The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid

Part 2) What are the dimensions of this surface?

The surface is a square with side length 6 inches

The dimensions of this surface are 6 in x 6 in

Part 3) what is the area molly needs to paint?

we know that

The area that Molly needs to paint is equal to the surface area of the cube plus the surface area of the pyramid minus two times the area of the surface that is shared by the two solids

therefore

Molly needs to paint 228 square inches

i hope this helps you

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