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
Helga [31]
3 years ago
6

Use the intersect method to solve: x^2+1=-x^2+9

Mathematics
1 answer:
Sergio [31]3 years ago
8 0

Answer:

x={-2,2}

Step-by-step explanation:

Graph them when intersecting.

Algebraically:

x^2 + 1 = -x^2 + 9

Add x^2 on both sides and subtract 1 on both sides.

2x^2 = 8

Divide 2 on both sides

x^2 = 4

Square root on both sides

|x| = 2

Remove abs value by putting + or - on the other side

x = {-2,2}

Please mark for Brainliest!!  :D Thanks!!

For more information or any questions, please comment below and I'll respond as soon as possible!! :)

You might be interested in
Write the standard form of the equation of the line passing through the point (2,5) and perpendicular to the line 4x - y = 2. Th
nignag [31]
The gradient of the original line is 4. For a perpendicular gradient, you use the negative reciprocal, which is -1/4. Using y - y1 = m(x - x1), you can solve that y - 5 = -(1/4)(x - 2).
Multiply through by -4, you get -4y + 20 = x - 2, which can be rearranged as x + 4y = 22
7 0
4 years ago
Quick multiplication sentence can you use to find the quotient of 1/2 divided by 3
PSYCHO15rus [73]

Answer: B) 1/6•3=1/2

Step-by-step explanation:

quotient means division

which means 1/2 / 3

which equals 1/6

This is the only equation with 1/2, 3, and 1/6

7 0
4 years ago
What does this mean -(-c) when c+2/3 on the numberline
ad-work [718]

Answer:

Step-by-step explanation:

a negative minus a negative is a positive so it mean c plus 2divided by 3 on the the number line

5 0
3 years ago
(6n-7)+(8n+2)=23 HELP FAST PLEASE
nikitadnepr [17]

Answer:

n=2

Step-by-step explanation:

(6n-7)+(8n+2)=23

14n-5=23

14n=28

n=2

3 0
4 years ago
Strawberries cost $4 per pound. Are grapes or strawberries the cheaper fruit to buy
seraphim [82]

There is not enough information to answer this question. We need to also know the amount of money grapes cost to buy, once we know that, we can do simple math to find how which is cheaper.

If you know the amount of money for grapes, please give it to me so I can help you.

May I have brainliest please? :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the area of the trapezoid by composing into rectangles or decomposing into triangles or other shapes as needed. Show your w
    9·1 answer
  • What is the median for this set of numbers? <br><br><br> 10, 9, 23 , 68, 70, 4, 12, 4
    8·2 answers
  • If a person with a height of 58 inches takes 2,601 steps per mile, a person with a height of 64 inches takes 2,357 steps per mil
    6·1 answer
  • Please help I will amek brainliest
    6·1 answer
  • Caitlyn did 6/7 of the problems on her math correctly and 4 incorrectly. She did all the problems. How many were there?
    9·1 answer
  • F(x) = -4x + 5<br> g(x) = x2 + 3x
    8·1 answer
  • I have 9 questions. multiply or divide
    7·2 answers
  • Mike hiked to a lake in 4.5 hours at an average rate of 3 2 5 miles per hour. Pedro hiked the same distance at a rate of 3 4 5 m
    13·1 answer
  • The measure of an angle is 42.89. What is the measure of its supplementary angle?
    7·1 answer
  • THE GREATEST PRODUCT
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!