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3 years ago

I need to know the answer

Mathematics

1 answer:

Yuri [45]3 years ago

3 0

Answer:

A only.

Step-by-step explanation:

A. 2^2 + 3(2) - 10 = 0

4 + 6 - 10 = 0

10 - 10 = 0

0 = 0 (correct)

-5^2 + 3(-5) - 10 = 0

25 + (-15) - 10 = 0

10 - 10 = 0

0 = 0 (correct)

B. 2^2 - 3(2) - 10 = 0

4 - 6 - 10 = 0

-2 - 10 = 0

-12 = 0 (not correct)

-5^2 - 3(-5) - 10 = 0

25 - (-15) - 10 = 0

40 - 10 = 0

30 = 0 (not correct)

C. 2^2 + 7(2) + 10 = 0

4 + 14 + 10 = 0

18 + 10 = 0

28 = 0 (not correct)

-5^2 + 7(-5) + 10 = 0

25 + (-35) + 10 = 0

-10 + 10 = 0

0 = 0 (correct)

D. 2^2 - 7(2) + 10 = 0

4 - 14 + 10 = 0

-10 + 10 = 0

0 = 0 (correct)

-5^2 - 7(-5) + 10 = 0

25 - (-35) + 10 = 0

60 + 10 = 0

70 = 0 (not correct)

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Word form:
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3 years ago

Solve x^2 +14x = -24 by completing the square. Which is the solution set of the equation?

Korolek [52]

Start with x^2 +14x = -24,

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2 years ago

These are pretty easy but can someone answer them for me so that i could go to sleep

weqwewe [10]

Hey There!! (❁´◡`❁)

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The answer to this is: Map. Because, a Map help you to find places where you need to go.
The answer to this is: Map Key. Because, A map usually has a legend, or key, that gives the scale of the map and explains what the various symbols represent. Some maps show relief, or changes in $UsedLess$ elevation. A common way to show relief is contour lines, also called topographic lines.
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Hope It Helped!~

Sorry, this take me too long to type...

 Good Luck With Your Assignment!~ 

And, Tell me if some the answer are wrong...

<h3> $UsedLess$ ~</h3><h3> (●ˇ∀ˇ●)</h3>

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2 years ago

What is the answer to 3/7w-11=4/7w

stellarik [79]

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3 years ago

Write the equation of the line in slope intercept form that goes through points (1,8) and (5,20)

pantera1 [17]

Answer:

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Step-by-step explanation:

Point slope equation:

y=mx+b

m-slope, b- is y-intercept

equation given 2 points

y-y1 = m(x-x1)

For point (1,8) and slope m=(y2-y1)/(x2-x1) = 20-8/5-1=12/4=3

y-8 =3(x-1)

arange it in point slope format

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3 years ago