3 years ago

Hep me 15pts surface area of a prism.

Mathematics

1 answer:

ella [17]3 years ago

6 0

Answer:

A=360in^2

Step-by-step explanation:

there are 5 faces, 2 triangular, 3 rectangular

Triangular:

A=(9 * 10)/2=45

Since there are 2 of them the total is 90 in^2 for the triangles

Rectangular:

A=10*9=90

Since there are 3 the total is 270in^2

Total surface area is A=270+90=360in^2

You might be interested in

Five times the sum of a number and 3 is the same as 3 times the difference of twice the number and 1.

allochka39001 [22]

Answer:

Step-by-step explanation:

5(x+3) = 3(2x-1)

5x+15 = 6x-3

15-3 = 6x-5x

12 = x

x = 12

6 0

3 years ago

Marc is building a rectangular wooden frame for his canvas. If the canvas is 7 feet long by 5 feet wide, what is the perimeter o

Assoli18 [71]

Answer:

24 feet

Step-by-step explanation:

Use the perimeter formula, P = 2l + 2w, where l is the length and w is the width.

Plug in the values, and solve:

P = 2l + 2w

P = 2(7) + 2(5)

P = 14 + 10

P = 24

So, the perimeter of the canvas is 24 feet

8 0

3 years ago

There are 15 boys and 10 girls in mrs.rogers class what is the ratio of boys to girls ?

Vika [28.1K]

Answer: The ratio of boys to girls in Mrs.Rogers class is 15 to 10.

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

The sum of two numbers is 74. The larger number is 3 more than the smaller number. Find the numbers.

nlexa [21]

Answer: It's 35.5 and 38.5

Step-by-step explanation:

First, subtract 74 by 3 giving you 71.

Next, divide 71 by 2; it gives you 35.5 (that's your first number).

Then, add the 3 that you took away to 35.5 and get 38.5 (that's your second number).

6 0

3 years ago

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

Marina86 [1]

If you multiply 1×3 you get 3, if you multiply 2×3 and you get 6. etc. so that is the pattern if that helps at all.

5 0

3 years ago