1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sladkih [1.3K]
3 years ago
14

Which are the solutions of x2 = –7x – 8?

Mathematics
2 answers:
m_a_m_a [10]3 years ago
4 0

Answer:

The answer is the fourth option.

Step-by-step explanation:

You start by converting the equation into standard form, resulting in x2+7x+8. You would then use the coefficients and plug them into the quadratic formula, [-(7)+√7(7)-4(1)(8)]/2 and [-(7)-√7(7)-4(1)(8)]/2. Simplified, this would become (-7+√49-32)/2 and (-7-√49-32)/2. After adding the numbers in the square root, you are left with (-7+√17)/2 and (-7-√17)/2

Anit [1.1K]3 years ago
3 0

Answer

x= -7, -1

Step-by-step explanation:

x^2= -7x- 8

x^2+ 7x+ 8 =0

x+7=0       x+1=0

x=-7          x=-1

You might be interested in
F(x)=3x-6 find f(4) I
Akimi4 [234]
To find f(4), you want to substitute x for 4 in the equation. It would look like:

f(4) = 3(4) - 6

Then, just do the math:

f(4) = 12 - 6
f(4) = 6

Hope this helps! :)
3 0
3 years ago
PLEASE HELP!!!!!<br><br> find the area of the polygon.
CaHeK987 [17]

Answer:

2 cm is were youll find the polygon at. it shouldnt be hard to see the area of were the polygon is

7 0
3 years ago
Read 2 more answers
Stephanie has $4,500 in her saving account.
AfilCa [17]

so whats the question

7 0
3 years ago
Need desperate help thanks
guapka [62]

Answer:

x = 158

y = 22

Step-by-step explanation:

A triangle's inside sides sum up to 180 degrees. So to find the angle y, just take 180 - the sum of the other two sides.

70 + 88 =  158

180 - 158 = 22

y = 22 degrees

Now, to find angle x, since x and y are next to each other on a straight line, it means they are supplementary angles. Supplementary angles add together to equal 180, so just substract y from 180 to get x.

180 - 22 = 158

x = 158 degrees

6 0
2 years ago
Yall please help meee
madam [21]

Answer-

x=0;y=3

x=1;y=-1

x=2;y=-5

x=3;y=-9

7 0
3 years ago
Other questions:
  • If the general rule of the pattern is 33-3n find 8th term (N=8)
    10·2 answers
  • frieda friendly works for al local car Dealership. she noticed that 3/4 of the cars are sedans and that half of them are white.
    6·1 answer
  • Please help!! will bark brainiest
    6·2 answers
  • Cynthia is in the process of constructing two tangent line segments from a point outside circle O to circle O as shown. Which li
    10·2 answers
  • This semicircle has a diameter of 5 meters. What is the area of this figure? Use 3.14 to for pi. Enter your answer as a decimal
    13·2 answers
  • What is the value of Arc tan 1?
    8·1 answer
  • Solve 3x2 + 2x + 7 = 0. Round solutions to the nearest hundredth. (5 points)
    9·2 answers
  • 13. A ski lift forms a right triangle, as shown. Use the Pythagorean Theorem
    11·1 answer
  • Samantha, Brooklyn, and Mary went to Bonnaroo music festival where they each attended various
    13·1 answer
  • For a given input value x, the function g outputs a value y to satisfy the following equation.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!