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2 years ago

A table has an area of 12 and a perimeter of 16 ft. What are the dimensions of the table?

Mathematics

2 answers:

Ivenika [448]2 years ago

7 0

l=6

w=2

Area=lw

Area=6×2

area=12

perimeter=2(l+w)

perimeter=2(6+2)

perimeter=2×8

perimeter=16

Mark brianliest if my answer suit your question.

pav-90 [236]2 years ago

3 0

Answer:

2 feet by 6 feet

Step-by-step explanation:

L x b is 12

l x 12/b

perimiter is 16

2 (l plus b) is 16

l plus b is 8

12/b plus b is 8

B² - 8b plus 12 is 0

B2 - 6B- 2b plus 12 is 0

(b- 2) (b-6) is 0

B-2 is 0 and b-6 is 0

B Is 2,6

L = 12/2 is 6

L = 12/6 is 2

so is 2,6

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$\bf \qquad \qquad \textit{double proportional variation}\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
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\end{array}\\\\
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$\bf \begin{cases}
p=pedalisi\\
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s=\textit{sitting height}
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%pelidisi, varies directly as the cube root of a person's weight in grams and inversely as the person's sitting height in centimeters.
\textit{pelidisi varies directly}\\
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$\bf \textit{we know that }
\begin{cases}
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3 years ago

7. If F(x) = f(g(x)), where f(-2) = 8, f'(-2) = 4, f'(5) = 3, g(5)=-2, gʻ(5) = 6.. Find F'(5) <br>

serious [3.7K]

Answer:

I'm going to lay this out in a chart so it's a little easier to see:

F(x) = f(g(x))

x | f (x) | f ' (x) | g (x) | g ' (x)

--------------------------------------

-2 | 8 | 4 |

5 | | 3 | -2 | 6

Remember the chain rule, which says

(f (g (x))) ' = g ' (x) f ' (g (x))

When they ask for F ' (5), they are asking for (f (g (x))) ' when x = 5.

Using the chain rule, that's

F ' (5) = g ' (5) f ' (g (5))

We can simplify using the numbers provided.

F ' (5) = (6) f ' (-2)

F ' (5) = (6) (4)

F ' (5) = 24

I hope that helps!

by jannat <33

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