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2 years ago

30,____, 19, 13 1/2 whats the missing number?

1 answer:

3 0

24.5 should be the missing number. 13.5 (13 1/2) + 5.5 is 19. 19 + 5.5 is *24.5*. 24.5 + 5.5 is 30. Basically, you go up by 5.5 every number.

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What is the solution?

Mice21 [21]

(4,-3) because that’s where both lines intersect between each other.

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2 years ago

What is the M<2 A. 180 B. 60 C. 62 D. 118

oksano4ka [1.4K]

Answer:i tk 180

Step-by-step explanation:

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2 years ago

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Suppose that at a state college, a random sample of 41 students is drawn, and each of the 41 students in the sample is asked to

ra1l [238]

Answer:

The confidence interval for 90% confidence would be narrower than the 95% confidence

Step-by-step explanation:

From the question we are told that

The sample size is n = 41

For a 95% confidence the level of significance is $\alpha = [100 - 95]\% = 0.05$ and

the critical value of $\frac{\alpha }{2}$ is $Z_{\frac{\alpha }{2} } =Z_{\frac{0.05 }{2} }= 1.96$

For a 90% confidence the level of significance is $\alpha = [100 - 90]\% = 0.10$ and

the critical value of $\frac{\alpha }{2}$ is $Z_{\frac{\alpha }{2} } =Z_{\frac{0.10 }{2} }= 1.645$

So we see with decreasing confidence level the critical value decrease

Now the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }$

given that other values are constant and only $Z_{\frac{\alpha }{2} }$ is varying we have that

$E\ \ \alpha \ \ Z_{\frac{\alpha }{2} }$

Hence for reducing confidence level the margin of error will be reducing

The confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

Now looking at the above formula and information that we have deduced so far we can infer that as the confidence level reduces , the critical value reduces, the margin of error reduces and the confidence interval becomes narrower

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2 years ago

Add and simplify: 9/16 + 1/2=? 5/8 7/16 1 1/16 1 5/9

Rina8888 [55]

Answer:

1 1/+6

Step-by-step explanation:

9/16 + 8/16=17/16=1 1/16

5 0

2 years ago

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If you apply the changes below to the absolute value parent function f(x)=lxl, what is the equation of the new function?

Snowcat [4.5K]

Answer:

$f(x)=|x+4|+2$

Step-by-step explanation:

The given absolute value function is

$f(x)=|x|$

This is the base or the parent function.

The transformation $f(x)=|x+b|+c$ will shift the parent function b units to the left and c units up.

From the question, b=4 units and c=2 units.

The new equation is $f(x)=|x+4|+2$

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2 years ago

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