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cricket20 [7]
3 years ago
14

Write the following expression using a single exponent. 85 ÷ 8-2 A. 8-7 B. 83 C. 8-10 D. 87

Mathematics
1 answer:
attashe74 [19]3 years ago
7 0
The answer is A. I'm think i'm sure. :)
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Pls help i neeed to get my grade up badly
amm1812

Step-by-step explanation:

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r - 13/6 = ( 7r - 3/2 ) - ( 2/3 + 6r )

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-12 + r = ( -8 - r ) + ( 2r - 4 )

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Simplify<br> i3<br> a. -I<br> b. -1 <br> c. I<br> d. 1
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3 years ago
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The average score of all golfers for a particular course has a mean of 64 and a standard deviation of 3. Suppose 36 golfers play
kondaur [170]

Answer:

the probability that the exceeded 65 = 0.3707

The average score of the 36 golfers exceeded 65

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Step-by-step explanation:

<u>Step 1</u>:-

The average score of all golfers for a particular course has a mean of 64 and a standard deviation of 3.

mean (μ) = 64

standard deviation (σ) =3

by using normal distribution

given (μ) = 64 and  (σ) =3

i) when x =65

z = \frac{x-mean}{S.D} = \frac{65-64}{3} = 0.33 >0

P( X≥ 65) = P(z≥0.33)

              = 0.5 - A(z₁)

              = 0.5 - 0.1293 (see normal table)

             = 0.3707

The average score of the 36 golfers exceeded 65

                        = 36 X 0.3707 = 13.3452

                                               

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3 years ago
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Step-by-step explanation:

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2 years ago
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a nursery owner buys 5 panes cost $14.25. unfortunately, she breaks 2 more panes while reparing the damage. what is the cost of
miskamm [114]

Divide the total cost by all 5 panes to get the cost of 1 pane:

14.25/5 = 2.85

Then multiply by 2:

2.85 * 2 = $5.7

8 0
2 years ago
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