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3 years ago

Solve the equation for the indicated variable. SHOW ALL WORK! ab-ac=2 solve for a

Mathematics

1 answer:

Juli2301 [7.4K]3 years ago

5 0

Answer:

a= 2/b-c

Step-by-step explanation:

We want isolate for a or to be itself

ab-ac=2

factor out a

a (b-c)=2

Now bring b-c to the other side

a (b-c)/(b-c)=2/b-c

The b-c cancel each other out

a= 2/(b-c)

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Pretty easy problem compared to most ive seen this morning

Kipish [7]

Answer:

The answer is -2

Step-by-step explanation:

slope = y2-y1/x2-x1

= -6-6/3-(-3)

= -12/3+3

= -12/6

= -2

8 0

3 years ago

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

3 years ago

Please help i dont remember how to do this

inessss [21]

Just add 5 5 and 10 10 to get yo answers
i will work

8 0

2 years ago

Rebecca picked a bunch of flowers from her garden. She gave 19 flowers to her mother. If she now has 34 flowers, how many flower

KonstantinChe [14]

53 flowers were picked.
19 + 34 = 53

6 0

3 years ago

Someone pls help me thanks

ycow [4]

Answer:

-4,-6

Step-by-step explanation:

I'm a bit tired right now so I'm not going to explain it, but hopefully this still helps.

Goodluck with your schoolwork/homework.

---------------------------------------------------------------

apologies in advance for any errors or bad explanations.

5 0

3 years ago