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Alexeev081 [22]

2 years ago

12

Select the correct answer. Which statement describes ? A. It is an irrational number. B. It is a rational number that has a repe

ating decimal expansion. C. It is a rational number that has a terminating decimal expansion. D. It is not a rational number because it is negative.

1 answer:

Nastasia [14]2 years ago

7 0

Answer:

the answer is c okay g;)

Step-by-step explanation:

hope this helps

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Please help thank you!

Arte-miy333 [17]

Answer:

golf: $10
batting: $2.50

Step-by-step explanation:

We can write two equations in the two unknowns using the given relations. Let g and b represent the costs of a round of golf and a turn in the batting cage, respectively.

5g +4b = 60 . . . . . Sylvester's expense

3g +6b = 45 . . . . . Lin's expense

Dividing the second equation by 3 gives ...

g +2b = 15 ⇒ 2b = 15 -g

Substituting into the first equation, we have ...

5g +2(2b) = 60

5g +2(15 -g) = 60 . . . . . substitute for 2b

3g = 30 . . . . . . . . . subtract 30, collect terms

g = 10 . . . . . . . divide by 3

__

2b = 15 -10 = 5 . . . . use the value of g to find b

b = 2.5 . . . . . . . . divide by 2

Mini golf costs $10 per round; batting cages cost $2.50 per turn.

7 0

2 years ago

To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine foun

QveST [7]

Answer:

We conclude that the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 31.7 milligrams

Sample mean, $\bar{x}$ = 28.5 milligrams

Sample size, n = 9

Alpha, α = 0.05

Sample standard deviation, s = 2.8 milligrams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 31.7\text{ milligrams}\\H_A: \mu < 31.7\text{ milligrams}$

We use One-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{28.5 - 31.7}{\frac{2.8}{\sqrt{9}} } = -3.429$

Now, $t_{critical} \text{ at 0.05 level of significance, 8 degree of freedom } = -1.860$

Since,

$t_{stat} < t_{critical}$

We fail to accept the null hypothesis and accept the alternate hypothesis. We conclude that the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

3 0

3 years ago

Round 4,386 to the nearest hundred

professor190 [17]

Answer:

4,400 :)

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

What is an equation of the line that passes through the points (3, 4) and (-4, -3)? Put your answer in fully reduced form.

Alexxx [7]

Answer:

y=x+1 is right answer .

6 0

3 years ago

Geography On Kenny's map, each

kkurt [141]

Answer:

360 miles

Step-by-step explanation:

if each inch represents 30 miles and you need to find out how far 12 inches isyou need to multiply 30 x 12 = 360

5 0

3 years ago