3 years ago

Ma Johnson gives 1/6 of 1 pizza to each of her 25 students

Mathematics

1 answer:

Phoenix [80]3 years ago

7 0

Answer:

25/6 pizzas are needed. (4 1/6)

Step-by-step explanation:

25 x 1/6 is 4 1/6

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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

Chase and Alonzo stand next to each other and throw baseballs in the air.

PSYCHO15rus [73]

Answer:if you are solving for y

Step-by-step explanation:-4×2+5x+7

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uysha [10]

Answer:

Step-by-step explanation:

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3 years ago

The perimeter of a rectangle is 20xm. the length is 6cm longer than the width. what are the length and width of the rectangle?

aleksley [76]

Let width be x

length= 6+x

p=2(l+w)
20=2(6+x+x)
10=2x+6
10-6=2x
4=2x
x=4/2
x=2

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If x =5 find the value of 2x squared

Bas_tet [7]

Answer:

100

Step-by-step explanation:

2(5)^2

10^2

100

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3 years ago