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3 years ago

Solve for X (idk why there has to be 20 characters but ok brainly)

Mathematics

1 answer:

aleksley [76]3 years ago

6 0

4x+12=1x+60
4x+12=x+60 Move terms
4x-x=60-12 collect the like terms
Subtract
3x=48
Divide both sides by 3
X=16

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The Insure.com website reports that the mean annual premium for automobile insurance in the United States was $1,503 in March 20

stira [4]

Answer:

a) Option A)

$H_{0}: \mu \geq 1503\\H_A: \mu < 1503$

b) Point estimate of difference = -78

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $1,503

Sample mean, $\bar{x}$ = $1,425

Sample size, n = 25

Sample standard deviation, s = $160

We have to carry a hypothesis test that the mean annual premium in Pennsylvania is lower than the national mean annual premium.

a) First, we design the null and the alternate hypothesis

$H_{0}: \mu \geq 1503\text{ dollars}\\H_A: \mu < 1503\text{ dollars}$

b) Point estimate of the difference between the mean annual premium in Pennsylvania and the national mean

Point estimate of difference =

Mean annual premium in Pennsylvania - National mean

$\text{Point estimate} = \bar{x} - \mu = 1425 - 1503 = -78$

Thus,

Point estimate of difference = -78

5 0

4 years ago

For f(x) = -4x -9 evaluate for f(6.5)

kolezko [41]

Answer:

f=−35

Step-by-step explanation:

<em>1.Simplify 4×6.5 to 26</em>

f=-26-9

<em>2. Simplify -26-9 to -35</em>

f=-35

7 0

3 years ago

Define the domain: {(2,3),(0,3),(4,2),(5,6)}

Y_Kistochka [10]

For the following relation the domain would be all of the x coordinates.
D=A. 2,0,4,5

5 0

3 years ago

Which number does Not represent 4.701

konstantin123 [22]

Answer:

4.702 does not represent 4.701

Step-by-step explanation:

#teamtrees #WAP (Water And Plant)

6 0

3 years ago

Read 2 more answers

An electrician paid $153.06 total for 1000 feet of wire how much does he pay per foot of wire

vesna_86 [32]

For every zero you move one decimal place to the left. there are 3 zeroes in 1000.

153.06

3 decimal places to the left

0.15306

6 0

3 years ago