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garri49 [273]
3 years ago
9

What is the distance between the points (8,0) and (2,-3)?

Mathematics
1 answer:
Neko [114]3 years ago
8 0
Use gradient formula, rise over run.

y2-y1/x2-x1
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A cell phone provider offers a plan that costs ​$30 per month plus ​$0.20 per text message sent or received. A comparable plan c
dalvyx [7]

Answer:

Step-by-step explanation:$30 per month, $0.20 per text

A: 50 text messages in order for both plans to cost the same

7 0
3 years ago
What is the percent change of 16 to 44.2?
stira [4]
176.25 is the answer
6 0
3 years ago
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What is the absolute value of 22
siniylev [52]
What is the absolute value of 22? 

Absolute value<span> is a measure of the '</span><span>distance a number is from 0'</span>

The <span> absolute value of 22 is 22. 22 is the distance it is from 0. </span>

5 0
3 years ago
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A college entrance exam company determined that a score of 24 on the mathematics portion of the exam suggests that a student is
seraphim [82]

Answer:

a) The Z -value 2.397 < 2.576 at 99% or 0.01% level of significance

Null hypothesis is accepted at  0.01% level of significance

<em>They score is above 24 on the math portion of the​ exam</em>

<em>b) </em>

<u><em>Null Hypothesis</em></u>: There is no significance difference between the college level mathematics and math courses in high school

H₀: μ = 24

<u>Alternative Hypothesis: </u>H₁: μ ≠ 24

<u>Step-by-step explanation:</u>

<u><em>Step(i)</em></u>:-

Given random sample 'n' = 250

Given data sample mean x⁻ = 24.5

Standard deviation = 3.3

<u><em>Null Hypothesis</em></u>: There is no significance difference between the college level mathematics and math courses in high school

H₀: μ = 24

<u>Alternative Hypothesis: </u>H₁: μ ≠ 24

test statistic

Z = \frac{x^{-} - mean}{\frac{S.D}{\sqrt{n} } }

Z = \frac{24.5 - 24}{\frac{3.3}{\sqrt{250} } } = \frac{0.5}{0.2087} = 2.397

a) 99% or 0.01% level of significance

Level of significance ∝ = 0.01

Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.005} =2.576

The Z -value 2.397 < 2.576 at 99% or 0.01% level of significance

Null hypothesis is accepted at  0.01% level of significance

<em>They score is above 24 on the math portion of the​ exam</em>

b) 95% or 0.05% level of significance

Level of significance ∝ = 0.05

Z_{\frac{\alpha }{2} } = Z_{\frac{0.05}{2} } = Z_{0.025} = 1.96

The Z -value 2.397 > 1.96 at 95% or 0.05% level of significance

Null hypothesis is Rejected at  0.05% level of significance

<em>They score is below 24 on the math portion of the​ exam</em>

6 0
3 years ago
HELP HELP ME PLEASE!!!
Harman [31]
Use the cone formula:
V =  \pi r^{2}  \frac{h}{3}
And so:
Area =  \pi * 150^{2} *  \frac{240}{3} = 5654866.7 inches^{2}
5654866.7 / 12000 = 471,
So the answer is 471 weeks.

Hope this helps.
7 0
3 years ago
Read 2 more answers
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