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Anuta_ua [19.1K]
3 years ago
5

Can someone answer these 2 questions please?

Mathematics
1 answer:
aivan3 [116]3 years ago
7 0
I think for number 3, it is the third option.
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et y represent the total cost of publishing a book (in dollars). Let x represent the number of copies of the book printed. Suppo
Mice21 [21]

The change in the total cost for each book printed is $10.

The cost to get started ( before any books are printed) is $1200

Step - by -step Explanation

What to find?

• The change in the total cost for each book printed.

,

• The cost to get started ( before any books are printed).

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Given:

The given equation is 1200 + 10x = y

where x is the number of xopies of book printed and y is the total cost of publishing the book .

b) To obtain the cost to get started;

Substitute x = 0 into the given equation.

1200 + 10(0) = y

1200 = y

Hence, the cost to get started is $1200

a) To find the cost for each book;

Put x =1 in the given equation.

1200 + 10(1) = y

1210 =y

Change in cost for each book printed is 1210 - 1200 = 10

Hence, the change in the total cost for each book printed is $10.

<em />

5 0
1 year ago
Are two equilateral triangles always similar
sukhopar [10]
Yes because all equilateral triangles have equal angles and side lengths so they are all similar. hope i helped -J

4 0
3 years ago
...............................
valkas [14]
I believe it’s 7/10
3 0
3 years ago
A building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18π meters.
Whitepunk [10]

Answer:

A=81\pi\ m^{2}

Step-by-step explanation:

Step 1

Find the radius of the circular cross section

we know that

The circumference is equal to

C=2\pi r

we have

C=18\pi\ m

substitute and solve for r

18\pi=2\pi r

simplify

18=2 r

r=9\ m

Step 2

Find the area of the circular cross section

The area of the circle is equal to

A=\pi r^{2}

we have

r=9\ m

substitute

A=\pi (9)^{2}

A=81\pi\ m^{2}

8 0
3 years ago
What is the slope of (-3,-2) and (-1,-5)
klio [65]

Answer:

-3/2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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