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dybincka [34]
3 years ago
15

Who knows how you do you this??

Mathematics
2 answers:
Roman55 [17]3 years ago
7 0
X + 2 = -x - 8

add x to both sides
x + 2 + x = -x - 8 + x
2x + 2 = -8

subtract 2 from both sides
2x + 2 - 2 = -8 - 2
2x = -10

divide both sides by 2
2x         -10
---   =    -----
 2            2

x = -5
Monica [59]3 years ago
4 0
Hi!
Okay, so this actually isn't too bad! (For number 5) Just add the negative x over to get 2x. Then subtract 2 over to get -10. Then divide by 2 (-5) and you're done! For the rest, do the same thing. Get the x's on one side, get the regular numbers on the other, and divide! Hope that helped!
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Consider the figure
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Answer: 72 degrees for a, 108 degrees for b

Step-by-step explanation: Since the ratio of a to b is 3 to 2, 3x+2x would be 180 degrees. Performing addition and division, we would get 36 for x, and substituting it would get 72 degrees for a and 108 degrees for b. Hope this helps! (Could I please have brainliest?)

8 0
4 years ago
The percent-of-sales method for computing uncollectible accounts:
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3 0
3 years ago
The 95% confidence interval for a population mean (context unknown and irrelevant) turns out to be (428, 510). What is E?
Elina [12.6K]

The 95% confidence interval for a population mean has a margin of error (E) of 41

The confidence interval for a population mean is given by:

Confidence interval = μ ± E = (μ - E, μ + E)

Where μ is the mean and E is the margin of error.

Since the confidence interval is (428, 510), hence:

μ - E = 428      (1)

μ + E =  510     (2)

Subtracting equation 1 from equation 2:

2E = 82

E = 41

μ - E = 428

μ -41 = 428

μ = 469

Hence the margin of error (E) is 41

Find out more at: brainly.com/question/10501147

6 0
3 years ago
Help help help help help please
iris [78.8K]

Answer:

37

Step-by-step explanation:

h + 4g

5 + 4(8)

5 + 32 = 37

4 0
3 years ago
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