MATHEMATICS MIDDLE SCHOOL

Please explain.
Use properties to find the sum or product.
89+27+11

Answers

Answer 1
Answer: Ok, Josh! So, first, ask yourself, what are they asking?  They are asking to use properties to find the product, of course! Now, think of what you are doing out of addition, subtraction, multiplication, and division. That was easy. Addition! So you need to find the sum. Obviously that was the easy part. We need to add the smaller numbers first. So:
 
              27 + 11 = Y (Y will be the answer that you will find.
              Then you would add:
                Y + 89 = X (X = the final answer) 
I hope I helped! :D

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What is the factored form of the polynomial? (z2 10z + 25) A. (z − 5)(z − 5)
B. (z + 5)(z + 5)
C. (z − 2)(z + 5)
D. (z + 2)(z − 5)

Answers

Solution-

As the question is not complete so contemplating all the possible scenarios,

1st - z² + 10z + 25

2nd - z² - 10z + 25


For,

z^2 + 10z + 25 = (z)^2+2.z.5+(5)^2 = (z+5)^2=(z+5)(z+5)


And for,

z^2 - 10z + 25 = (z)^2-2.z.5+(5)^2 = (z-5)^2=(z-5)(z-5)


So, the factored form of the polynomials are,

(z+5)(z+5) \ and \ (z-5)(z-5)

The factors of the equation  z² - 10z + 25 are (z − 5)(z − 5).

Given Equation;

z² - 10z + 25

What are the factors?

Splitting the middle term Using formula Using Quadratic formula Using algebraic identities.

The factors of the equation are;

z² - 10z + 25

z² -5z -5z  + 25

z(z − 5) - 5(z − 5)

(z − 5)(z − 5)

Hence, the factors of the equation z² - 10z + 25 are (z − 5)(z − 5).

To know more about factors click the link given below.

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Finds the solutions to x^2=20

Answers

Solution of an equationx^(2) =20 is x= \pm 2√(5).

What is solution of an equation?

The solution of an equation is the array of all values that, when replaced for unknowns, make an equation true.

Given

x^(2) =20

x=√(20)

x=√(4 * 5 )

x=\sqrt{2^(2) * 5}

x= \pm 2√(5)

Solution of an equationx^(2) =20 is x= \pm 2√(5).

Find out more information about solution of an equation here

brainly.com/question/545403

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Answer:

the solution of:

x²=20

√x² = √(2² × 5)

x=2√5

So the answer is

A. x= ±2√5

How to find roots of polynomial function

Answers

Answer:

IDK ok

Step-by-step explanation:

Four gallons of paint are used to paint 25 chairs. If each chair used the same amount of paint, how many gallons are used to paint each chair? Between what two whole numbers does your answer lie?

Answers

4 / 25 =.16 because the question is asking how many gallons per chair. If there is 4 gallons and your painting 25 chairs.... You must divide. 

What is X Plus -8 equals 3x plus 6

Answers

x + -8 = 3x + 6
x - 8 = 3x + 6
(x - 8) + 8 = 3x + 6 + 8
x = 3x + 14
x - 3x = (3x + 14) - 3x
-2x = 14
2x = -14
x = -7
x=7      this is how you  do it you just combine like terms but there isn't so you just add 8 to both sides so it would be x=3x+14 then you would subtract 3x to both side and it would be -2x=14 then divide by 2 not negative two and get x=7 because you can't have something equal negative x

Graph y = -­4x2 ­- 2 and its inverse

Answers

The function and it's inverse are graphed in the attached diagram.

For  y -intercept is x=0. This implies

y=-4(0)^2-2

y=0-2

y=-2

For x-intercept, y=0, This means that,

0=-4x^2-2

-(1)/(2)=x^2

The above equation tells us that, the above equation has no real roots. Hence the graph has no x-intercept.

Also the value a=-4<0, tells us the graph is a maximum graph.

THE INVERSE OF y

y=-4x^2-2

Interchange x and y.

x=-4y^2-2

Make y the subject to obtain,

y^(-1)=\pm (√(-x-2))/(2).

for x<-2.

You can now find the intercepts, with some few points to graph the inverse.
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