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ivann1987 [24]
2 years ago
15

Consider the equation: x^2 = - 8x - 7​

Mathematics
2 answers:
Airida [17]2 years ago
6 0

Answer: The expression is not factorable with rational numbers.

Step-by-step explanation:

Natasha2012 [34]2 years ago
3 0

Answer:

0

Step-by-step explanation:

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The tables represent two linear functions in a system.
tino4ka555 [31]

first function                                        2nd function

slope =(y2-y1)/(x2-x1)                          slope =(y2-y1)/(x2-x1)

  =(14-2)/(3-0)                                        m = (-3--12/(3-0)

12/3                                                               m=(-3+12)/3

4                                                                   m =9/3 =3

y = 4x+2                                                    y = 3x+-12

set these two equations equal

4x+2 = 3x-12

subtract 3x

x+2 = -12

subtract 2 from each side

x = -14

y = 3x-12

y =3*(-14)-12

y = -42-12

y = -54

ChoiceD



3 0
3 years ago
Read 2 more answers
Solve with a system of equations: Two angles are supplementary if the sum of their measures are 180 degrees. If one is 90 degree
julsineya [31]

Answer:

  The measures of the angles are 150° and 30°.

Step-by-step explanation:

Let x and y represent the measures of the angles, with x representing the larger angle.

  x + y = 180 . . . . . . the two angles are supplementary

  x = 90 + 2y . . . . . one is 90° more than twice the other

___

Substituting the expression given by the second equation into the first, we have ...

  (90 +2y) +y = 180

  3y = 90 . . . . . . . . . . collect terms, subtract 90

  y = 30 . . . . . . . . . . . divide by the coefficient of y

  x = 180 -y = 150

The measures of the angles are 150° and 30°.

6 0
3 years ago
A function is a mathematical rule that.....
Elodia [21]

Answer:

B

Step-by-step explanation:

A function can be graphed as a straight line, as long as it isn't vertical.

5 0
3 years ago
Courtney is twice as old as Andre and three years older than Natalie. Courtney is half Shari’s age. The difference between Shari
Alisiya [41]

i am sorry if i'm wrong but i believe the answer is Courtney's age

3 0
3 years ago
Read 2 more answers
A dump truck brought 1⁄3 of a ton of rock on the first trip, 5⁄6 of a ton on the second trip, and 5⁄12 of a ton on the third tri
ludmilkaskok [199]
First convert the numbers to get the same denominator
1/3=4/12
5/6=10/12
5/12
Then add them all together
4/12+10/12+5/12= 19/12
Then reduce
1 7/12
Your answer is 1 ton and 7/12 of a ton
8 0
3 years ago
Read 2 more answers
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