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ANTONII [103]
3 years ago
12

Find the real or imaginary solutions of each equation by factoring #10, #22

Mathematics
1 answer:
mariarad [96]3 years ago
5 0
22)  
(x^2-16)(x^2+4)=0

can you finish?
solve for x (plus and minus because two solution and degreee 4 so total 4 answers  )
x=+-4          x=+-2

hope this helps.

for 10 I know a way but it might confuse you
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Which shows one way to determine the factors of x - 9x2 + 5x – 45 by grouping?
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Answer:

The last one.

Step-by-step explanation:

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X - 5 = 20 <br> x= <br><br> I need to know what the x equals
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Answer:

x = 25

Step-by-step explanation:

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x - 5 = 20 ( isolate x by adding 5 to both sides )

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5 0
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18. You are standing beside the Colorado River, 400 feet
Veseljchak [2.6K]
<h3>Answer: B. 781.6 feet approximately</h3>

=======================================================

Work Shown:

The horizontal portion is 400+166 = 566 feet. Label this as 'a', so a = 566. The vertical side is unknown, so b = x. The hypotenuse is c = 965

Use the pythagorean theorem

a^2+b^2 = c^2

566^2+x^2 = 965^2

x^2 = 965^2 - 566^2

x = sqrt( 965^2 - 566^2 )

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Suppose you have a random sample of 50 of these animals. What is the probability that the mean life span of the sample group is
katrin2010 [14]

In what I know of this problem and what you told me I think there is a 1/2 chance!

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Scientists tag and release a group of salmon after they hatch. Later, they catch a sample of salmon that return to the river and
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The best prediction of the total number of tagged salmon in a sample of 2000 is 100.

<h3><u>Predictions</u></h3>

To determine what is the best prediction of the total number of tagged salmon in a sample of 2000, the following calculation must be performed:

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Therefore, the best prediction of the total number of tagged salmon in a sample of 2000 is 100.

Learn more about predictions in brainly.com/question/18152997

7 0
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