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3 years ago

Umm can anyone answer this I need the area please

Mathematics

1 answer:

Phantasy [73]3 years ago

4 0

Answer:

21503 feet²

Step-by-step explanation:

Area of Square 1 = 69 x 69 = 4761

Area of Triangle = 69 x 92 ÷ 2 = 3174

Area of Square 2 = 92 x 92 = 8464

Area of Circle = 57.5² x π ÷ 2 ≈ 5104

Total Area = 21503

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Anarel [89]

Answer:

15, inches, 7, inches

Step-by-step explanation:

44=2(8+l)+2l

44=16+4l

28=4l

7=l

l=7

w=8+7

w=15

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3 years ago

What is. Log3(x+2)-log3 5

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Answer:

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Step-by-step explanation:

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4 years ago

Find the solution set. The solution set for -p2 − 11p = 0 is {}. (Separate the solutions with a comma.)

Umnica [9.8K]

$-p^2-11p=0\\
-p(p+11)=0\\
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$\{-11,0\}$

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3 years ago

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A mathematical phrase represented by numbers, variables, and operations is a(n)

blondinia [14]

Answer: A

Step-by-step explanation:

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3 years ago

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E^(8x)+e^(-x) find the interval on which f is increasing

saveliy_v [14]

Assuming ya mean
$f(x)=e^{8x}+e^{-x}$
take derivitive
remember dy/dx e^x=e^x
also the chain rule

so
$f'(x)=8e^{8x}+-1e^{-x}$
find where it equals 0
$0=8e^{8x}+-e^{-x}$
$e^{-x}=8e^{8x}$
multiply both sides by e^x
$1=8e^{9x}$
divide both sides by 8
$\frac{1}{8}=e^{9x}$
take ln of both sides
$ln(\frac{1}{8})=ln(e^{9x})$
$ln(\frac{1}{8})=9x$
divide both sides by 9
$\frac{ln(\frac{1}{8})}{9}=x$

x≈-1/5
f'(-1)<0
f'(0)>0

so it is increasing from x to infinity

the interval it is increasing on is $(\frac{ln(\frac{1}{8})}{9}, \infty)$

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3 years ago