2 years ago

Functions please help

Mathematics

1 answer:

Irina18 [472]2 years ago

5 0

Answer:

Step-by-step explanation:

A) 700 cookies in 7 days.

im not sure of B

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Write each fraction in its simplest form. 8 8 II 25

WINSTONCH [101]

Answer:

$\frac{88}{5^{2} }$

Step-by-step explanation:

There are no fractions I am assuming the fraction is 88/25 which would be 88/5^2

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3 years ago

The temperature of a pot of water was 180.3°F and it cooled at a rate of -2.5°F for a minute after 20 minutes what was the tempe

kykrilka [37]

Temperature after 20 minutes is found by multiplying-2.5 by 20 since it goes down by 2.5 degrees for one minute. -2.5 * 20 = -50. Adding this to 180.3 will give the temperature 130.3 degrees.

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3 years ago

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attashe74 [19]

..no lo sé, pero como necesito puntos, ¿sí?

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2 years ago

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anygoal [31]

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1 year ago

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If f(x)=2x^2+(1000/x), find the average rate of change of f(x) from x=a to x=a+h.

galina1969 [7]

Answer:

$\frac{\frac{1000}{x+h}-\frac{1000}{x}}{h}$ is your average rate of change,

Step-by-step explanation:

average rate of change is

$\frac{f(a+h)-f(a)}{a+h-a}$ , by slope formula

simplify this to get $\frac{f(a+h)-f(a)}{h}$ , which is the definition of the derivative as h goes to 0

$\lim_{h \to 0} \frac{f(a+h)-f(a)}{h}$

since you defined x=a, we can substitute a for x and vice versa to find our derivative.

$\lim_{h \to 0} \frac{(2x^2+\frac{1000}{x+h})-(2x^2+\frac{1000}{x})}{h}$

simplifying

$\lim_{h \to 0} \frac{\frac{1000}{x+h}-\frac{1000}{x}}{h}$ (your average rate of change)

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3 years ago