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2 years ago

What is the surface area of the figure 8" 8" 12"

Mathematics

1 answer:

fgiga [73]2 years ago

3 0

First, find the surface area of the bigger sides (there are 4 of them so what you get for one you will multiply by 4)

12 x 8 = 96

96 x 4 = 384

Then find the surface area of the smaller sides ( there are two small sides so multiply your answer by two)

8 x 8 = 64

64 x 2 =128

Then add both together

128 +384 = 512

Hope this helps :)

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A tutor gives John 5 assignments and asks him to complete 5. How many possible combinations? Pls answer ASAP

Fittoniya [83]

Answer:

There is 1 possible combination

Step-by-step explanation:

There are 5 assignments and they must be completed. 5. We want to find the number of combinations, then we use the formula of combinations.

$nCr =\frac{n!}{r!(n-r)!}$

Where n is the total number of objects and you choose r from them

Then

$n= 5\\\\r = 5$

$5C5 =\frac{5!}{5!(5-5)!}$

$5C5 =\frac{5!}{5!(0)!}$

$5C5 =\frac{5!}{5!}$

$5C5 =1$

7 0

3 years ago

Y = 3 + 2 x +5 for x

grin007 [14]

Answer:

$x=\frac{y-8}{2}$

Step-by-step explanation:

$y=3+2x+5 \\ \\ =8+2x \\ \\ y-8=2x \\ \\ x=\frac{y-8}{2}$

4 0

1 year ago

My parents recently moved to the Poconos, they got 30 or more inches of snow from this last snow storm. It took my Dad 2 hours t

never [62]

To determine how much will it take to clean a 120ft driveway considering that it took him 2hs to clear 10ft and that the cleaning rate is constant, you can use cross multiplication:

10ft______2hs

120ft_____xhs

If the cleaning rate is the same, then the ratios between both are the same:

$\frac{2}{10}=\frac{x}{120}$

From this expression, you can determine the time by multiplying both sides of the equal sign by 120

$\begin{gathered} 120(\frac{2}{10})=\frac{120x}{120} \\ 24=x \end{gathered}$

It will take him 24 hours to clear the 120ft driveway.

5 0

1 year ago

Write an equation to represent the following statement.

Stells [14]

Step-by-step explanation:

"Is" means equals. "Less than" means subtracted from.

28 = k - 12

Add 12 to both sides to solve for k:

k = 40

6 0

3 years ago

Log base 8 of 8 ^x+1

____ [38]

Answer:

$x + 1$

Step-by-step explanation:

log(x) is the inverse function of an exponent. "log base 8 of xyz" means "what number do I have to raise 8 to, to get xyz". In this case, it means, "what number do I have to raise 8 to, to get x + 1". That's simple, it's just x + 1!

6 0

3 years ago