4 years ago

Which expression is equivalent

Mathematics

1 answer:

choli [55]4 years ago

5 0

The first equation is equal to the one in the question.

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What are the possible values of x in -11x^2 + 2x = 10?

vlabodo [156]

-11x² + 2x = 10
-11x² + 2x - 10 = 10 - 10
-11x² + 2x - 10 = 0
x = -(2) +/- √((2)² - 4(-11)(-10))
 2(-11)
x = -2 +/- √(4 - 440)
 -22
x = -2 +/- √(-436)
 -22
x = -2 +/- 2i√(109)
 -22
x = -2 + 2i√(109) x = -2 - 2i√(109)
 -22 -22
x = ¹/₁₁ - ¹/₁₁i√(109) x = ¹/₁₁ + ¹/₁₁i√(109)

8 0

3 years ago

You earn $7.50 per hour at a fast food restaurant. You earned $123.75 last week. How many hours did you work last week?

ladessa [460]

I believe you would need to divide 123.75 by 7.50.

The equation would look something like this:
7.50x=123.75
Where x = # of hours worked
123.75 / 7.50 = 16.5
so x = 16.5
You worked for 16.5 hours

3 0

3 years ago

How do you find volume of a octagonal prism?

mixer [17]

Answer:

V=2(1+2)a2h

Step-by-step explanation:

8 0

3 years ago

Mike jogged a total distance of 5 1/3 miles during the months of October and November. If Mike only jogger 1/6 mile every day, W

Bumek [7]

Answer:

Step-by-step explanation:

If he jogged $x$ miles every day, and he jogged a total distance of $y$ miles, then he runs for $y/x$ days. This is an extension of the $d=rt$ or distance equals rate times time.