MATHEMATICS HIGH SCHOOL

Use the quadratic formula to solve 2y2 + 2y – 12 = 0.Question 6 options:


{–3, –2}



{3, –2}



{–3, 2}


{3, 2}

Answers

Answer 1
Answer: Hello
y²+y-6=0
==> y²-2y+3y-6=0
==>y(y-2)+3(y-2)=0
==>y-2)(y+3)=0
==>y=-3 or y=2

Answer C (-3,2)

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Two times the sum of nine and a number is the opposite of 9.
Write an equation and solve.

Answers

The number is -27/2 if two times the sum of nine and a number is the opposite of 9 after applying the concept of the linear equation.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

Two times the sum of nine and a number is the opposite of 9.

Let the number be x:

2(x + 9) = -9

2x + 18 = -9

2x = - 9 - 18

2x =- 27

x = -27/2

Thus, the number is -27/2 if two times the sum of nine and a number is the opposite of 9 after applying the concept of the linear equation.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ2

- - 2*-9x

This is because you have "two times" which is 2*

The sum of a number = x
 
Opposite of 9 = -9

What is not the sum to 13

Answers

Answer:

Step-by-step explanation:

3 plus 3 is not 13

Square root of x to the 6th power over y to the 4th power

Answers

√((x^6)/(y^4))

x^6 indicates x to the sixth power, the same goes for y^4.

Isoke is solving the quadratic equation by completing the square. 10x2 + 40x – 13 = 0        10x2 + 40x = 13         A(x2 + 4x) = 13 What is the value of A?

Answers

Answer:

 A = 10

Step-by-step explanation:

We have given that : A quadratic equation 10x^2+40x-13=0

                                   another equation A(x^2+4x)=13

To find:  The value of A

Solution: Taking the quadratic equation  10x^2+40x-13=0

and try to reduce this equation in form of another equation

10x^2+40x-13=0 ⇒ 10(x^2+4x)=13

Comparing with another equation A(x^2+4x)=13

we get that 10 takes the place of A

which implies value of A = 10
I hope this helps you




10x^2+40=13


10 (x^2+4)=13



A=10

Find the lateral area the regular pyramid.



L. A. =

Answers

we have a formula to find the lateral surface area of regular pyramid.

L.A=12.P.L

P is the perimeter of the base of regular pyramid

L is the slant height .

Express X^2-8x+5 in the for (x-a)^2-b where a and b are integers

Answers

Answer:

x {}^(2) - 8x + 5 \n = x {}^(2) - 8 x+ 5 + 11 - 11 \n = x {}^(2) - 8x +16 - 11 \n = (x - 4) {}^(2) - 11 \n

A is 4 and b is 11
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