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fredd [130]
3 years ago
7

Divide: 83.5 ÷ 6.25 The first step in solving 83.5 ÷ 6.25 is to multiply the divisor and dividend by . The new division problem

is .
Mathematics
1 answer:
kherson [118]3 years ago
7 0

Answer:

The first step in solving 83.5 ÷ 6.25  is to multiply the divisor and dividend by  

[✔ 100 ]

sorry idk the answer for the second one :(

Step-by-step explanation:

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-4a^2 -7a^2 - 2ab +3ab +9b^2 -5b^2

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Perimeter of a mirror is 260. The length is x cm. Find the height of the mirror in terms of x
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Express 500 g as a percentage of 2.5 kg.​
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Answer:

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Step-by-step explanation:

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A baseball is thrown with an upward velocity of 32 feet per second. The equation h=-16t^2+32t gives the height of the ball t sec
AnnZ [28]

Answer:

The function of height has a maximum value.

Step-by-step explanation:

Maximum or Minimum:

A given function f(x).

  1. Find out f'(x) and f''(x)
  2. Then set f'(x)=0 which gives x=a.
  3. f''(a) > 0 , then at x=a , f(x) has minimum value.
  4. If f''(a)<0 , then at x=a, f(x) has maximum value.

Given that, a baseball is thrown with with an velocity of 32 feet per second.

The equation of height is

h=-16t^2+32t

Differentiating with respect to t

h'=-32 t+32

Again differentiating with respect to t

h''=-32

Next, we set h'=0

-32 t+32=0

\Rightarrow 32t=32

\Rightarrow t=1

Now h''|_{t=1}=-32

Since at t=1, h''<0.

The function of height has a maximum value.

The maximum of h is = -16.(1)²+32

                                     = -16+32

                                     =16 feet

4 0
3 years ago
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