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4 years ago

Find the distance between these points.

Mathematics

2 answers:

n200080 [17]4 years ago

8 0

85 i found on quizlet hope it helps

Daniel [21]4 years ago

5 0

Answer:

Step-by-step explanation:

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Which algebraic expression is equivalent to the expression below?

True [87]

Answer:

Step-by-step explanation:

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3 years ago

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Suppose that several insurance companies conduct a survey. They randomly surveyed 350 drivers and found that 280 claimed to alwa

KATRIN_1 [288]

Answer:

Lower limit = 0.76

Upper limit = 0.84

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 350

Number of drivers that buckle = 280

Formula:

$p' = \dfrac{x}{n} = \dfrac{280}{350} = 0.8$

$q' = 1-p' = 1 - 0.8 = 0.2$

The standard deviation for sp =

$=\sqrt{\displaystyle\frac{p'q'}{n}}\\\\=\sqrt{\dfrac{0.8\times 0.2}{350}} = 0.02138$

95% Confidence Interval:

$p' \pm z_{critical}(s_p)$

$z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.96$

Putting the values, we get,

$0.8 \pm 1.96(0.02138)\\= 0.8 \pm 0.0419048\\=(0.7580952, 0.8419048)\\\approx (0.76,0.84)$

Lower limit = 0.76

Upper limit = 0.84

3 0

3 years ago

What is the value of x?<br><br> Enter your answer in the box.

Keith_Richards [23]

The answer would be 5, because you divide 40 by 8 like they did to get the sides

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4 years ago

In a box there are six envelopes each containing two cards. Three of the envelopes contain two red cards, two of them contain a

Sphinxa [80]

Answer:

$\frac{2}{5}$

Step-by-step explanation:

3 envelopes having 2 red card

2 envelopes having 1 red card and 1 black card

1 envelope having 2 black cards

We are given that . An envelope is selected at random and a card is withdrawn and found to be red.

So, No. of ways of envelope having red card = 3+2 = 5

No. of required ways of envelope having 1 red card and 1 black card = 2

So, probability of getting an envelope having 1 red card and 1 black card = $\frac{2}{5}$

Hence The chance the other card is black is $\frac{2}{5}$

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3 years ago

Which equation matches the graph? points: (0,2) (3,3)

posledela

Answer:

A. y=1/3x+2

Step-by-step explanation:

Use the slope formula and the slope-intercept form to find the slope m and y-intercept b .

Slope:

1 /3

y-intercept:

( 0 , 2 )

8 0

3 years ago

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