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
IgorLugansk [536]
3 years ago
6

What is the value of z so that -9 and 9 are both solutions of x^2+z=103?

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
8 0
The answer is C.
x^2 + z = 103x^2 + 22 = 103*Subtract both sides by 22*x^2 + 22 - 22 = 103 - 22x^2 = 81*square root both sides to find x*√x^2 = <span>√81</span>
<span>x = +- 9</span>
You might be interested in
Ron has 8 caps and 4 of his caps are blue. Thes rest of his cap are red. How many of Ron's caps are red
Law Incorporation [45]
Ron was 8 hats.

4 are blue and 4 are red

8 - 4 = 4
4 0
3 years ago
Jamal uses 7.56 liters of milk to make milkshakes for him and 11 friends. Each milkshake uses the same
Semenov [28]

Answer:

Answer is 0.63 or .63 either way is the same and right!

Step-by-step explanation:

7.56/11(1+ for jamal) =0.63

Your welcome!

8 0
3 years ago
Solve <br> 6r + 7 = 13 + 7r
Firdavs [7]

Answer:

r = -6

Step-by-step explanation:

6r + 7 = 13 + 7r

-6r both sides

7 = 13 + r

-7 both sides

r + 6 = 0

-6 both sides

r = -6

8 0
3 years ago
Read 2 more answers
I need help!? Someone help me
hammer [34]
Answer 3 his car is slowing down
4 0
3 years ago
Read 2 more answers
PLEASE ANSWER AS SOON AS POSSIBLE
Hitman42 [59]
4x (4 peaches) = 4y (4.96$)
x (4/4 peaches=1) = y (4.96$ / 4 = 1.24$)
y f(x) = 1.24$
6 0
3 years ago
Other questions:
  • Choose the correct simplification of(5x+7y)(4x-6y)
    10·1 answer
  • 10. Write the equation of the line in slope-intercept form that has the following points: (5,2) (0, -5)
    5·1 answer
  • Help!! I'm super confused and I was on vacation for this chapter
    14·1 answer
  • Solve the equation by completing the square
    6·2 answers
  • What is the best estimate for 59.87 - 42.1?<br> A. 18<br> B. 22<br> C. 25<br> D. 30
    10·2 answers
  • 5. Alexis has $95. She has 2 more five-dollar bills, 5 more one-dollar bills, and 2 more
    15·1 answer
  • Express 48% as a fraction
    11·2 answers
  • 9. Carlos walked 8 miles in 3 hours. Leah walked 14 miles in 6 hours. Are these rates
    5·1 answer
  • How many solutions does the equation 2x -1 = x + x -1 have ?
    6·1 answer
  • Simplify 2log5+5log2+3log3-3log6​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!