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Bas_tet [7]
3 years ago
10

-8>4+2v How do you do this

Mathematics
2 answers:
Natalija [7]3 years ago
6 0

Answer:

v = -6

Step-by-step explanation:

I am SMAT

Yuliya22 [10]3 years ago
4 0

Answer:

Step-by-step explanation:

-8 > 4 +2v ; subtract 4 from both sides

-8-4 > 4-4 +2v; calculate

-12 > 2v; divide both sides by 2

-6 > v

TO Know:

apply the same operation to both sides of inequality

if the operation is dividing or multiplying by a negative number change the direction of the inequality

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Please help reflect the point (-2,-3)​ and reflect it over the y-axis
Nesterboy [21]

Answer:

Step-by-step explanation:

use formula

A(x,y)=A'(-x,y)

(-2,-3)=(2,-3)

4 0
3 years ago
Assume the general population gets an average of 7 hours of sleep per night. You randomly select 45 college students and survey
tekilochka [14]

Answer:

a) ii. This is a left-tailed test.

b) -1.59

c) -1.301

d) i. reject null hypothesis

e) Option i) The data supports the claim that college students get less sleep than the general population.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 7 hours

Sample mean, \bar{x} = 6.87 hours

Sample size, n = 45

Alpha, α = 0.10

Sample standard deviation, s =  0.55 hours

First, we design the null and the alternate hypothesis

H_{0}: \mu = 7\text{ hours}\\H_A: \mu < 7\text{ hours}

a) We use one-tailed(left) t test to perform this hypothesis.

b) Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{6.87 - 7}{\frac{0.55}{\sqrt{45}} } =-1.59

c) Now,

t_{critical} \text{ at 0.10 level of significance, 44 degree of freedom } = -1.301

Since,                    

t_{stat} < t_{critical}

d) We fail to accept the null hypothesis and reject it.

We accept the alternate hypothesis and conclude that  mean number of hours of sleep for all college students is less than 7 hours.

e) Option i) The data supports the claim that college students get less sleep than the general population.

8 0
3 years ago
Write an equation in slope- intercept form for the line with slop-1/4 and y-intetcept 5
Rashid [163]
Y=mx+b
m=slope
b=yintercept

given
slope=-1/4
yint=5

y=-1/4x+5
6 0
3 years ago
Read 2 more answers
1. Which words represent ADDITION<br> less than<br> sum<br> more than<br> times
Vlad1618 [11]

Answer:

more than

Step-by-step explanation:

8 0
3 years ago
SOMEBODY HELP MEEE!!!!
VladimirAG [237]
Solution= x=5
Alernative form= 21 x - 105= 0<span />
8 0
3 years ago
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