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3 years ago

Someone answer these

Mathematics

2 answers:

oksian1 [2.3K]3 years ago

7 0

Answer:

#1 = (2, -4)

#2= Quadrant 2

#3= Point A

Step-by-step explanation:

I've done this myself, and it's simple. Just work out the problems

Dennis_Churaev [7]3 years ago

4 0

Here you go. (I need to fill up same)

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Two sisters share a lottery win of $1,400,000. If

Sedaia [141]

Answer:

$600,000:$800,000

Step-by-step explanation:

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2 years ago

A local hospital tracked the blood type and gender of the patients they saw on an average day. Which is a fair statement?

Oksana_A [137]

Tracked the blood type.

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3 years ago

Read 2 more answers

Is this correct please explain

uysha [10]

Answer:

79°

Step-by-step explanation:

since this figure goes around completely, the sum would be 360°

1 and 3 are equal, so you would multiply 101 by 2

101 × 2 = 202

subtract 202 from 360

360 - 202 = 158

4 and 2 are equal, so divide 158 by 2

158 ÷ 2 = 79

so angle 4 = 79°

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2 years ago

Solve V- E = 2 for E; E =<br> A.) V - 2 <br> B.) V + 2 <br> C.) - V - 2 <br> D.) - V + 2

zhuklara [117]

Add v to both sides: -E=2+V
Divide both sides by -1: E= -2-V

Answer: -V-2

3 0

3 years ago

A student believes that less than 50% of students at his college receive financial aid. A random sample of 120 students was take

marusya05 [52]

Answer:

p= 0.9995 and we can conclude that students receiving aid is more than 50% according to the sample results in 2% significance level.

Step-by-step explanation:

$H_{0}$ : less than or equal 50% of students at his college receive financial aid

$H_{a}$ : more than 50% of students receive financial aid.

According to the nul hypothesis we assume a normal distribution with proportion 50%.

z-score of sample proportion can be calculated using the formula:

z= $\frac{X-M}{\frac{s}{\sqrt{N} } }$ where

X is the sample proportion (0.65)
M is the null hypothesis proportion (0.5)
s is the standard deviation of the sample ( $\sqrt{0.5*(1-0.5)}$ )
N is the sample size (120)

then z= $\frac{0.65-0.50}{\frac{\sqrt{0.25}}{\sqrt{120} } }$ ≈ 3,29

thus p= 0.9995 and since p<0.02 (2%), we reject the null hypothesis.

4 0

3 years ago