MATHEMATICS HIGH SCHOOL

Evaluate the expression when a=-4 and x=5.

a-2x
Evaluate the expression when a=-4 and x=5. a-2x - 1

Answers

Answer 1
Answer:

Answer:

That would be -14.

Step-by-step explanation:
Answer 2
Answer:

Answer:

it's -14 when u evaluate a-2x

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If you work 8 hours per day, how long would it take you to build 10 doghouses?

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The question is asking to state the duration that would it take you to build 10 doghouse if you work 8 hours per day, base on my research and further analysis, I would say that the answer would be 60 hours, because 6 hours is one dog house. I hope you are satisfied with my answer and feel free to ask for more 

Do arthetic sequence have a common ratio?

Answers

Answer:

yes

Step-by-step explanation:

its called the common ratio because it is the same to each number or common and it also is the ratio between two consecutive numbers in the sequence

Answer:

points

Step-by-step explanation:

y = 1/2x – 6 x = –4 what is the solution to the system of equations? (–8, –4) (–4, –8) (–4, 4) (4, –4)

Answers

Answer:

(-4,-8)

Step-by-step explanation:

Given :


y = (1)/(2) x -6  ---(1)


x= -4    ------(2)


Solution :

To find the solution of given system of equation we need to use the substitution method i.e. we need to substitute the value of x from equation (2)  in equation (1).


⇒y=(1)/(2) *(-4)-6


⇒y=-2-6


⇒y= -8

Thus for x =-4 we get y = -8


Hence (-4,-8) is the solution to the given system of equations .

y = 1/2 (-4) - 6 = -2 - 6 = -8
Therefore, solution is (-4, -8)

What steps should be taken to calculate the volume of the right triangular prism? Select three options

Answers

Answer:

1st, 4th and 5th options are correct.

Step-by-step explanation:

Please find the attachment.  

We are asked to choose three steps to calculate the volume of the given right triangular prism.

We know that base of triangular prism is triangle. The volume of triangular prism is area of base times height of the prism.

Let us find area of triangular base using area of triangle formula.

A=(1)/(2)bh, where,

b = Base length,

h = Height of triangular base.

Therefore, 1st option is correct.

Upon substituting the base length (8 m) and height (14 m), we will get:

A=(1)/(2)(\text{8 m}* \text{14 m})

A=\text{4 m}* \text{14 m}

A=56\text{ m}^2

Therefore, 4th option is correct.

The volume of the prism would be area of base times height of prism (7 m) as:

\text{Volume of the prism}=(56\text{ m}^2)* 7\text{ m}

\text{Volume of the prism}=392\text{ m}^3

Therefore, 5th option is correct as well.

To calculate the volume of a triangular prism, measure the width and height of a triangular base, then multiply the base by the height by 1/2 to determine the triangle's area. Next, measure the height of the triangular prism and multiply this by the triangle's area to get the volume

Estimate the sum or difference?
6/10 + 7/12
Not sure how to do?

Answers

is it a mixed number or a improper fraction?

Can someone help me with this math question

Answers

Answer:

The coordinates of D' are (1,-1)

Step-by-step explanation:

The point D in the figure has co-ordinates (2,-2) as shown in the figure.

The figure is dilated by a factor of 1/2

So, multiply the coordinates of D (2,-2) by 1/2

D' = (1/2*2, 1/2*-2)

D' = (1,-1)

So, the coordinates of D' are (1,-1)
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