3 years ago

Please help please now please

Mathematics

1 answer:

LenaWriter [7]3 years ago

8 0

Answer: 1,070 cm²

Step-by-step explanation:

25 multiplied by 15 is 375.

15 multiplied by 4 is 60.

25 multiplied by 4 is 100.

Now, we multiply these answers by 2.

375 multiplied by 2 is 750.

100 multiplied by 2 is 200.

60 multiplied by 2 is 120.

Add these all up, and you get your surface area, 1,070.

(Tldr; SA = 2lw + 2lh + 2hw)

You might be interested in

the value of x - y is negative an X and Y are both positive what can conclude about the values of X and Y?

tiny-mole [99]

You can conclude that X is smaller than Y. For example:
(2,5)
2 + 5 = 7
2 - 5 = -3

Hope this helped!

3 0

3 years ago

On a factory floor, 30 out of every 140 toy robots is defective. What percent is defective?

yaroslaw [1]

Answer:

$21.43\%$

Step-by-step explanation:

we know that

To find out the percent of robots which are defective, divided the number of defective robots by the total number of robots and multiply the result by 100

Let

x ----> the number of defective robots

y ----> the total number of robots

p ---> percentage of robots which are defective

$p=\frac{x}{y} (100)$

we have

$x=30\\y=140$

substitute

$p=\frac{30}{140}(100)$

$p=21.43\%$

5 0

3 years ago

EASY MATH<br> Find all the zeros of f(x)= x^3 − 6x^2 + 13x − 20 given that 1−2i is a zero.<br> x=

Oduvanchick [21]

Answer:

there is only one zero

Step-by-step explanation: and if it easy why you didint do it just ascking

3 0

2 years ago

ind the surface area of a sphere with a radius of 12 cm. Approximate as 3.14 and round your answer to the nearest hundredth

Bezzdna [24]

The surface area of a sphere is:

A=4πr^2, if r=12 and π is approximated as 3.14 then

A≈4(3.14)(12^2)

A≈4(3.14)(144)

A≈576(3.14)

A≈1808.64 cm^2

5 0

3 years ago

Floor tile costs $11 per square yard. How much will it cost to tile a bathroom that is 90 square feet?

Usimov [2.4K]

99 Dollars one square foot = 9 square yards

8 0

3 years ago