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3 years ago

In the document can someone please help me understand it

Mathematics

1 answer:

V125BC [204]3 years ago

7 0

Answer: I see two people typing, so...

Step-by-step explanation:

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What are the first three terms of the Arithmetic Sequence a, = 15 - 2(n - 1)?

IgorC [24]

Answer:

Step-by-step explanation:

Plug 1, 2, and 3 into n and you'll get 15, 13, and 11 respectively

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3 years ago

Help with this question

puteri [66]

Answer:

its A!

Step-by-step explanation:

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3 years ago

Ian tosses a bone up in the air for his dog, Spot. The height, h, in feet, that Spot is above the ground at the time t seconds a

kirill115 [55]

Answer:

12 feet per second.

Step-by-step explanation:

Please consider the complete question.

Ian tosses a bone up in the air for his dog, Spot. The height, h, in feet, that Spot is above the ground at the time t seconds after she jumps for the bone can be represented $h(t)=-16t^2+20t$ .

What is Spot's average rate of ascent, in feet per second, from the time she jumps into the air to the time she catches the bone at t=1/2?

We will use average rate of change formula to solve our given problem.

$\text{Average rate of change}=\frac{f(b)-f(a)}{b-a}$

$\text{Average rate of change}=\frac{h(\frac{1}{2})-h(0)}{\frac{1}{2}-0}$

$\text{Average rate of change}=\frac{-16\cdot(\frac{1}{2})^2+20\cdot \frac{1}{2}-(-16\cdot(0)^2+20\cdot (0))}{\frac{1}{2}-0}$

$\text{Average rate of change}=\frac{-16\cdot\frac{1}{4}+10-(0)}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{-4+10}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{6}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{2\cdot 6}{1}$

$\text{Average rate of change}=12$

Therefore, Spot's average rate of ascent is 12 feet per second.

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3 years ago

What is 1 2/4+-3 1/4?

Semmy [17]

The answer is 4 3/4.

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3 years ago

A clerk is marking up merchandise 34%. The original price of an item is $455. What will be the retail price?

Nadusha1986 [10]

To find markup price, multiply the original number (455) by 1 + the decimal equivilent of the percent increase (.34)
so
455*1.34= $609.70

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3 years ago

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