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erastova [34]
3 years ago
8

Which of the following is the sum of both solutions of the equation

id="TexFormula1" title="x^{2} +x-42=0" alt="x^{2} +x-42=0" align="absmiddle" class="latex-formula">?
A) 13 B) 1 C) -13 D) -1
Mathematics
1 answer:
AysviL [449]3 years ago
5 0

Answer: x=6 or x=-7

Step-by-step explanation:

Step 1: Factor left side of equation: (x-6)(x+7)=0

Step 2: Set factors equal to 0: x-6=0 or x+7=0

Get your answer: x=6 or x=-7

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There are 50 teenagers at a swim meet. The ratio of locals to out-of-town
frosja888 [35]

Answer:

There are 30 out of towners

Step-by-step explanation:

locals: out of town: total

2            3                     2+3 = 5

There are 50 total 50/5 =10 so multiply each term by 10

locals: out of town: total

2*10        3 *10              5*10

20                 30             50

There are 30 out of towners

4 0
3 years ago
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Which two consecutive whole numbers does StartRoot 39 EndRoot lie between? Why? 5 and 6 because 39 falls between 52 = 25 and 62
aivan3 [116]

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7 0
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can someone explain to me how you figure out if a triangle is obtuse, acute or a right angle? i will give 20 points
dezoksy [38]

Answer:

Right angle is 90 degrees, belowe 90 degrees is acute, and above 90 degrees is obtuse

Step-by-step explanation:

Right angle = 90degrees

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lorasvet [3.4K]

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Step-by-step explanation:

Simple math.

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300 / 60 = 5.

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2.5 x (9+12) = 52.5

Hope that helps!
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