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3 years ago

Which statements are true about slices of a right rectangular prism? Check all that apply.

Mathematics

2 answers:

kaheart [24]3 years ago

5 0

Answer:

A and D

Step-by-step explanation:

These are correct because i got it right on edgunity

devlian [24]3 years ago

3 0

Answer:

A and D

Step-by-step explanation:

Just took the test

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The scores of fourth grade students on a mathematics achievement test follow a normal distribution with a mean of 75 and standar

mamaluj [8]

Answer:

The appropriate solution is:

(a) 0.1056

(b) 0

(c) 0.9544

Step-by-step explanation:

The given values are:

Mean,

$\mu = 75$

Standard deviation,

$\sigma = 4$

(a)

⇒ $P(x>80)=1-(x$

$=1-P[\frac{x-\mu}{\sigma}$

$=1-P(z$

By using the table, we get

$=1-0.8944$

$=0.1056$

(b)

According to the question, the values are:

$n$ = 64

$\mu_\bar{x}$ = 75

Now,

⇒ $\sigma_\bar{x}$ = $\frac{\sigma}{\sqrt{n} }$

= $\frac{4}{\sqrt{64} }$

= $\frac{4}{8}$

= $0.5$

⇒ $P(\bar {x} >80 ) = 1 - P(\bar x$

$=1 - P[\frac{(\bar x-\mu_\bar x)}{\sigma \bar x} < \frac{80-75}{0.5} ]$

$=1-P(z$

By using the table, we get

$=1-1$

$=0$

(c)

As we know,

⇒ $\sigma_\bar x$ = $\frac{\sigma}{\sqrt{n} }$

= $\frac{4}{\sqrt{64} }$

= $\frac{4}{8}$

= $0.5$

then,

= $P(74< \bar x$

= $P[\frac{74-75}{0.5} < \frac{\bar x-\mu \bar x}{\sigma \bar x} < \frac{76-75}{0.5} ]$

= $P(-2$

= $P(z$

By using the table, we get

= $0.9772-0.0228$

= $0.9544$

7 0

3 years ago

If you bought 24 light bulbs, how much money would you save by buying the less expensive light bulbs?

Firlakuza [10]

with the more expensive light bulbs, the cost would be $155.52

with the less expensive light bulb, the cost would be $119.04

This means you would save $36.48

7 0

3 years ago

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Which set of data shows the least variability?

juin [17]

B. Shows lest Variability.
A) is constant, C) is Constant, D) is constant but with and addition of 20 and remaining

5 0

3 years ago

9.7 x 10^3 in scientific notation

harina [27]

The answer to the question is 9,700.

8 0

3 years ago

25 points What is the equation for the line in slope-intercept form

allsm [11]

Answer:

y=8x

Step-by-step explanation:

x=1 y= 8

x=2 y=16

8=m+b

16=2m+b

m=8

y=8x

5 0

3 years ago

Read 2 more answers