3 years ago

Seven less than the quotient of x and 9

Mathematics

1 answer:

erica [24]3 years ago

8 0

Equation:

(x+9)-7
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Which equation can be used to solve for x in the following diagram ?

Sliva [168]

C 35+5x=90
5x=90-35
x=55/5
x=11
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3 years ago

Number of cars Repaired at

sveta [45]

What if this !? Tricky answer : explanation

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4 years ago

14. Write an equation of the line using the slope and y-intercept.<br> m = -5, b = -1

Paladinen [302]

Slope-intercept form: y = mx + b

The answer is:

y = -5x - 1

Happy to help!

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3 years ago

(6^-8)^4

KIM [24]

Your Answer is A.

(-8) x 4

= -8 x 4

= -32

= 1/6 ^32

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4 years ago

You want to create a 99% confidence interval with a margin of error of .5. Assuming the population standard deviation is equal t

miss Akunina [59]

Answer:

Sample size minimum is 60

Step-by-step explanation:

given that you want to create a 99% confidence interval with a margin of error of .5.

The population standard deviation is equal to 1.5

i.e. $\sigma = 0.5$

Confidence level = 99%

Since population std deviation is known, we can use Z critical value for finding margin of error

Z critical value for 99% = 2.58

Margin of error = $2.58*\frac{1.5}{\sqrt{n} }$

Equate this to 0.5 and solve for n

$2.58*\frac{1.5}{\sqrt{n} }=0.5\\\sqrt{n} =7.74\\n =59.90\\n=60$

8 0

3 years ago