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ad-work [718]
3 years ago
10

I need to know this asap!

Mathematics
1 answer:
Vinvika [58]3 years ago
4 0

w+2x=16 ⇒ w=16-2x


x+2w=14        x+2(16-2x)=14

                      x+32-4x=14

                     -3x=14-32

                      -3x=-18  /:(-3)

                       x=6


w=16-2x=16-2·6=16-12=4


2y+w=-6 ⇒   2y+4=-6

                   2y=-6-4

                   2y=-10  /:2

                   y=-5

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You intend to draw a random sample in order to test a hypothesis about an unknown population mean. You will use a hypothesis tes
Gre4nikov [31]

Answer:

The correct order is :

1. Determine the null and alternative hypothesis.

2. Select a sample and compute the z - score for the sample mean.

3. Determine the probability at which you will conclude that the sample outcome is very unlikely.

4. Make a decision about the unknown population.

Step-by-step explanation:

The correct order of the steps of a hypothesis test is given following

1. Determine the null and alternative hypothesis.

2. Select a sample and compute the z - score for the sample mean.

3. Determine the probability at which you will conclude that the sample outcome is very unlikely.

4. Make a decision about the unknown population.

These steps are performed in the given sequence to test a hypothesis.

6 0
3 years ago
The price trends of two laptop brands M and N are given by the functions
vodomira [7]
PM after 10 months is priced at 3650
pN after 10 months is priced at 4000

I hope you can answer your question with that! :)
8 0
3 years ago
Which is an equation of the line with a slope of 1/4 and a y-intercept of -2?
Mademuasel [1]

Answer:

y = 1/4x -2

Step-by-step explanation:

If the slope is 1/4, then you must multiply x by 1/4. If we plug 0 into 1/4x, we get 0, but we need -2, so we must subtract 2 in the equation.

8 0
3 years ago
Line RS bisects PQ at point R. Find RQ if PQ=14 centimeters.
Tema [17]

Since RS bisects PQ at point R, then R is the midpoint of PQ.

PQ = 14 <em>given</em>

PR = RQ <em>definition of midpoint</em>

PR + RQ = PQ <em>segment addition postulate</em>

RQ + RQ = PQ <em>substituted PR with RQ</em>

2RQ = PQ <em> simplified (added like terms)</em>

2RQ = 14 <em> substituted PQ with 14</em>

RQ = 7 <em>divided both sides by 2</em>

Answer: 7 cm

7 0
3 years ago
Sam bought shoes for $36.94 and x pairs of socks for $1.92 each. Which expression shows the total money spent? 36.94x + 1.92 36.
NISA [10]
It is 36.94 + 1.92x because you already know how much money he spent on shoes but not for socks
5 0
4 years ago
Read 2 more answers
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