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Blababa [14]
3 years ago
8

8. If AC = 2x + 2 and GF = 4x - 14, find the value of x. help please??

Mathematics
1 answer:
Dovator [93]3 years ago
4 0

Answer:

x=8

Step-by-step explanation:

2x+2 = 4x-14

16=2x

x=8

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1. A waste management service attempts to design routes so that each of their trucks pick-up on average four tons of garbage or
IRINA_888 [86]

Answer:

1.-Then we p-value indicates that we are in the rejection region we reject H₀

We support the claim of the garbage collector the average picking up more than 4 tn of garbage

2.- p  = 75 %

3.-3.-t(s) is in the rejection region we accept H₀ we have not evidence to support Marc´s claim

Step-by-step explanation:

1.- If p-value is 0,04   and significance level α = 5 %  or  α = 0,05 then p-value < α

Test hypothesis should be    ( x the average of garbage)      

Null hypothesis          H₀           x = 4 Tn

Alternative Hypothesis     Hₐ    x  > 4 Tn

Then  alternative hypothesis suggests a one tail-test to the right  and

p-value <  0,05

Then we p-value indicates that we are in the rejection region we reject H₀

We support the claim of the garbage collector the average picking up more than 4 tn of garbage

2.- As we are dealing with a normal distribution the CI  95 % is symmetrical with respect to the mean, therefore the proportion of student living in Brooklyn is:  

(0,73 + 0,77) /2

p = 0,75     p  = 75 %

Test hypothesis:

Null Hypothesis            H₀            μ    =  26

Alternative Hypothesis      Hₐ      μ   <  26

Alternative hypothesis tells us the test is a one-tail test to the left

Sample size   n = 25

Sample mean   μ  =  24,4

Sample Standard deviation  =  9,2

We assume normal distribution, and as n < 30 we use t-student table

with  24 degree of freedom

Significance level is 0,05  and df = 24  we find t (c)  in t- student table

t(c) = 1,7109      test to the left   t(c) = -1,7109

To calculate  t(s)

t(s)  =  (  24,4 - 26 ) / 9,2 / √25

t(s) =  - 1,6 * 5 / 9,2

t(s) = - 0,87

Comparing t(s)  and t(c) we have

t(s) > t(c)

t(s) is in the rejection region we accept H₀ we have not evidence to support Marc´s claim

6 0
2 years ago
PLEASEE HELPPP! <br> what is the measure of
Debora [2.8K]

Answer:

x=12

Step-by-step explanation:

Im not sure which measure you're talking about, but I'll show you what I did here:

A triangle = 180 degrees.

4x + 8x + 4x =16x

-8 - 1 - 3 = -12

180 = 16x - 12        -Add 12 to both sides

192 = 16x               -divide by 16 to get x by itself

12 = x

Angle A = 88 degrees (8 times 12 then subtract 8)

Angle B = 47 degrees (4 times 12 then subtract 1)

Angle C = 45 degrees (4 times 12 then subtract 3)

5 0
2 years ago
Area model multiplication: 2x2 digits what to do forget how to do it
valkas [14]

Answer:


Step-by-step explanation:

Yes because

4 0
3 years ago
Which is the quotient of 396 divided by 12
Anton [14]
To find the quotient, divide 396 by 12.
396/12= 33
5 0
3 years ago
Read 2 more answers
Liam has 9/10 gallon of paint for his birdhouses he sells at the fair. It takes 1/20 gallon of paint for each one. How many can
xenn [34]

Answer:

Liam can paint 18 bird houses.

Step-by-step explanation:

9/10 divided by 1/20 = 18

8 0
2 years ago
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