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3 years ago

Use the intersect method to solve the equation x^2-3=-x^2-1

Mathematics

1 answer:

3241004551 [841]3 years ago

8 0

Hi,

x=-1 or x=1.

In blue: y=x²-3, in black y=-x^2-1

See picture

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Find the product of 85 and 25

saul85 [17]

Answer: The product of 85 and 25 is 2125 .

85x25 = 2125

Step-by-step explanation:

<h3>Hope it works out !</h3>

7 0

3 years ago

I need a step by step explanation on how you solved the equation.

Ghella [55]

Answer: x=3 and y=−2

Step-by-step explanation:

x=−2y−1;4x−4y=20

Step: Solve x=−2y−1 for x:

Step: Substitute−2y−1 for x in 4x−4y=20:

4x−4y=20

4(−2y−1)−4y=20

−12y−4=20(Simplify both sides of the equation)

−12y−4+4=20+4(Add 4 to both sides)

−12y=24

−12y

−12

(Divide both sides by -12)

y=−2

Step: Substitute−2 for y x=−2y−1:

x=−2y−1

x=(−2)(−2)−1

x=3(Simplify both sides of the equation)

7 0

3 years ago

Is the answer to 8+7+12÷3 2

nordsb [41]

Is the last number together??

5 0

4 years ago

Read 2 more answers

Identify the domain and range of the relation: (-5,-3), (-2,1), (1,4), (2,5)

jonny [76]

Domain is the x-coordinate and range is the y - coordinate

$\therefore \: domain = \{ - 5, \: - 2, \: 1, \: 2 \} \\ \\ \&\: range = \{ - 3, \: 1, \: 4, \: 5\}$

3 0

4 years ago

What are the steps to getting the value of x in 4(2x - 11) + 15 = 21 and explanation for each step?

tester [92]

4*(2x - 11) + 15 = 21

8x - 44 +15 = 21

8x = 21 + 44 - 15

8x = 50

x = 50 : 8

x = 6.25 or 25/4

7 0

3 years ago