Use the intersect method to solve the equation x^2-1=-x^2+7

Answers

Answer 1
Answer:

Answer:

The solutions of the equation x^2-1=-x^2+7 are (-2,3) and (2,3)

Step-by-step explanation:

Please, see the attached file.

Thanks.


Related Questions

Brinn's rectangular kitchen has an area of 81 square feet. The kitchen is 9 times as many square feet as Brinn's pantry. If the rectangular pantry is 3 feet wide, what is the length of the pantry?
Help me on this problem please
James says tat 5/5 is greater than 9/10 is he correct Explain
how many boxes on the shape of 1-meter cubes could you fit on a shipping container that has the dimensions 2 meters wide by 10 meters long by 3 meters high?A: 40boxes but how much material is needed to make this shipping container
Find the the supplementary angle of 128.9

Help what is x^2-2x-24=0 I know you can use quadratic formula I just forgot how examples always help :)

Answers

There are another way to solve a quadratic equation we call, Sum and product.

Let's see how we can do this...

x^2-2x-24=0

Sum=-(b)/(a)

Product=(c)/(a)

therefore

Sum=-((-2))/(1)=2

Product=(-24)/(1)=-24

now we have to pick up 2 numbers that the sum should be 2 and the product should be -24, we just have to think a little.

Let's try -3 and 8, for example.

8+(-3)=5

8*(-3)=-24

Doesn't work.

Let's try now 4 and -6.

4+(-6)=-2

4*(-6)=-24

Can you see here, that we have to change the signal?!

therefore

Let's try -4 and 6

6+(-4)=2

6*(-4)=-24

Sum=2

and

Product=-24

Them it works.

\boxed{\boxed{x_1=-4~~and~~x_2=6}}
x^2-2x-24=0\n\na=1;\ b=-2;\ c=-24\n\n\Delta=b^2-4ac\n\n\Delta=(-2)^2-4\cdot1\cdot(-24)=4+96=100\n\nx_1=(-b-\sqrt\Delta)/(2a);\ x_2=(-b+\sqrt\Delta)/(2a)\n\nx_1=(2-√(100))/(2\cdot1)=(2-10)/(2)=(-8)/(2)=-4\n\nx_2=(2+√(100))/(2\cdot1)=(2+10)/(2)=(12)/(2)=6

Enter the correct answer in the box.What is the standard form of function f?
f(x) = 4(x + 6)^2+ 5

Substitute numerical values into the equation for a, b, and c.

F(x) = ax^2 + bx + c

Answers

The numerical values in the equation for a, b, and c will be 4, 48, and 149, respectively.

What is a function?

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The quadratic equation is given as ax² + bx + c = 0. Then the degree of the equation will be 2.

The quadratic function is given below.

f(x) = 4(x + 6)²+ 5

Convert the equation into a standard form. Then we have

f(x) = 4(x + 6)²+ 5

f(x) = 4(x² + 12x + 36)+ 5

f(x) = 4x² + 48x + 144 + 5

f(x) = 4x² + 48x + 149

The numerical values in the equation for a, b, and c will be 4, 48, and 149, respectively.

More about the function link is given below.

brainly.com/question/5245372

#SPJ5

Answer:

f(x) = 4x² + 48x + 149

Step-by-step explanation:same as the one above me.

Solve the following:y = x + 3
4x + y = 18


(6, 3)

(3, 6)

(−3, 6)

(3, −6)

Answers

Answer:

(3,6)

Step-by-step explanation:

We can substitute y for x+3 in the second equation

4x + x + 3 = 18

5x = 15

x=3

Plug x back into the equation

y = 3 + 3

y = 6

Answer:

B (3 ; 6)

Step-by-step explanation:

y = x + 3

4x + y = 18

4x + (x + 3) = 18

5x = 18 - 3

5x = 15

x = 3

y = x + 3

y = 3 + 3

y = 6

Y= −1/3x + 4

I need help

Answers

i’m doing the same thing and don’t understand. my question is m/5+9=11

18 gallons an hour equals cups divided 1 minute

Answers

There are 16 cups in one gallon. There are 60 minutes in one hour. Dimensional analysis time!
Here's a pic.

All I did was change the gallons into cups in the hour into minutes. If you need any clarification then leave a comment. Good luck!

please help! A cheetah travels at a rate of 90 feet per second.The distance d traveled by the cheetah is a function of seconds traveled t. Write a rule for the function.How far will the cheetah travel in 25 seconds?

Answers

Answer:

d = 90 (t) rule for function and travel d = 1250 feet .

Step-by-step explanation:

Given :  A cheetah travels at a rate of 90 feet per second.The distance d traveled by the cheetah is a function of seconds traveled t.

To find : Write a rule for the function.How far will the cheetah travel in 25 seconds.

Solution : Cheetah travel in one second = 90 feet.

Function would be : d = 90 (t).

For t = 25 second then ,

 d = 90 ( 25 ).

d = 2250 feet .

Therefore, d = 90 (t) rule for function and travel d = 2250 feet .

The equation would be d=90t because the input is 25 for t and multiply to get 2250 feet per second.