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Rainbow [258]
3 years ago
5

Multiply (2 – 71)(-1 + 47)

Mathematics
2 answers:
Serhud [2]3 years ago
6 0
(2-7i)(-1+4i)
2x-1=-2
2x4i= 8i
-7ix-1=7i
-7ix4i=-28i^2

so the answer is
-2+8i+7i+28i^2
=28i^2+15i-2

:)
igomit [66]3 years ago
6 0
Will this help? You can only Multiply the Same variables. I need to sleep now :)

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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
Kim purchased 6 small containers of potato salad and Seth purchased 2 extra
victus00 [196]

Answer:

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Step-by-step explanation:

6 0
3 years ago
75 cm x 50 cm HELP 61 POINTS
katen-ka-za [31]

3,750 cm its simple math really

3 0
3 years ago
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Reika [66]

Answer:

3.5 m/hr  

Step-by-step explanation:

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4 0
2 years ago
A triangle has height 15in. and area 120in squared. what is the length of its base?
Brums [2.3K]
The formula for the area of a triangle is Area=.5(b)(h)

So fill in what you know:

120=.5b*15

Then solve for b.

120=7.5b
b=16
3 0
3 years ago
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