3 years ago

The graph of the function

Mathematics

1 answer:

True [87]3 years ago

3 0

Answer:

A. the function is increasing for all real values of x where x < -4

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A large city newspaper periodically reports the mean cost of dinner for two people at restaurants in the city. The newspaper sta

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Answer: C) 133

Step-by-step explanation:

The formula to find the sample size is given by :-

$n=(\dfrac{z^*\cdot\sigma}{E})^2$

, where z* = Critical z-value

$\sigma$ = Population standard deviation for prior study.

E= Margin of error.

As per given , we have

$\sigma=$35$

E= 5

The critical z-value for 90% confidence level is 1.645.

Substitute al;l the value sin the above formula , we get

$n=(\dfrac{1.645\times 35}{5})^2$

$n=(\dfrac{57.575}{5})^2$

$n=(11.515)^2$

$n=132.595225\approx133$

Hence, the minimum sample size needed is 133.

Thus , the correct answer is : C) 133

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6.1cm is the right answer.

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Together teammates Pedro and Ricky got 2669 base hits last season Pedro had 275 more hits than Ricky how many hits did each play

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Pedro had 1,609.5 and Ricky had 1,074.5.

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Rob ate 3 cookies and drank 2 cups of milk. Barry ate 8 cookies and drank 1 cup of milk. Kevin ate 9 cookies and drank 4 cups of

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<h3><u>Cookies</u></h3>

Rob: 3

Barry: 8

Kevin: 9

Let's add all of that up.

3 + 8 + 9

11 + 9

= 20 cookies total

Rob: 2

Barry: 1

Kevin: 4

Let's add this up.

2 + 1 + 4

3 + 4

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They had 20 cookies and 7 cups of milk before they ate.

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the amount of rhubarb in the original is 3 1/2 cups using what you know of whole numbers and what you know of fractions explain

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To triple this number, you can triple the whole number, triple the fraction, then add them together.

3*3=9
1/2*3=3/2 (or 1 1/2)

Add them together.

9+1 1/2= 10 1/2

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