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2 years ago

hey can someone please help me i don’t understand this? the question says “find the surface area of the rectangular prism.”

Mathematics

1 answer:

ASHA 777 [7]2 years ago

6 0

Answer:

170 in^2

Step-by-step explanation:

you have to find the area of each surface of the square

1) the square on the right side:

5x5=25 in^2

there are 2 of these on opposite sides

2)the of the rectangle facing us;

6x5=30in^2 (5 because 5 is the height)

there are 4 of these

3)add up all the areas

25+25+30+30+30+30=170in^2

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A cylinder has a base with a radius of 8 inches and a height of 15 inches. What is the volume of the cylinder? (Use π = 3.14.)

stich3 [128]

R = 8
h = 15
a = r^2 * pi
a = 64pi = 201.06 sq.in.
201.06 * 15 = 3015.9 cubic inches.

4 0

3 years ago

The combined area of a pair of congruent rectangles can be represented, in square units, by the expression 18y^2-818y 2 −8. The

sveta [45]

Answer:

$Perimeter = 12y$

Step-by-step explanation:

Given

$Area = 18y^2 - 8$ -- two rectangles

Required

Determine the perimeter of one of the rectangles

First, calculate the area (A) of 1 rectangle

$A =\frac{1}{2}Area$

$A =\frac{1}{2}(18y^2 - 8)$

$A =9y^2 - 4$

Express as difference of two squares

$A =(3y - 2)(3y+2)$

Area is calculated as:

$A = Length * Width$

So, by comparison:

$Length = 3y - 2$

$Width = 3y + 2$

The perimeter is:

$Perimeter = 2 *(Length + Width)$

$Perimeter = 2 *(3y-2+3y+2)$

Collect Like Terms

$Perimeter = 2 *(3y+3y-2+2)$

$Perimeter = 2 *(6y)$

$Perimeter = 12y$

8 0

2 years ago

Fill in the missing digit to make the number divisible by

torisob [31]

Answer:

Step-by-step explanation:

6. 0 ,234,560 is divisible by 2.

7. 389,570 is divisible by 5.

8. 630,620 is divisible by 10.

9. 6+1+1+8+1=17 +(1)

611,811 is divisible by 3.

10. 5+2+5+4+3=19

multiple of 9 are 9,18,27,...

to make the sum 27 we have to add 8 to 19.

525,438 is divisible by 8.

5 0

2 years ago

Please answer 11 !! xx ill mark first answer

const2013 [10]

Answer:

the first one bc look at the m's and the d's the others look the same

Step-by-step explanation:

6 0

3 years ago

Choose the best term from the box vocabulary 1. An ....------

Alexus [3.1K]

1. expanded form
2. round

4 0

3 years ago