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morpeh [17]
1 year ago
5

PLEASE PLEASE PLEASE HELP A BROTHA OUT, THIS WAS DUE 5 DAYSS AGO please and thanks

Mathematics
1 answer:
lyudmila [28]1 year ago
7 0

Answer:

Step-by-step explanation:

12231 qwse 23q

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Simplify by finding the product of the polynomials below. Then Identify the degree of your answer. When typing your answer use t
Alona [7]

Given:

(9a^2-4)(9a^2+4)

The shown represents the difference between the squares

So, the product of the polynomials will be as follows:

\begin{gathered} (9a^2-4)(9a^2+4) \\ =(9a^2)^2-(4)^2 \\ =81a^4-16 \end{gathered}

So, the answer will be:

This simplifies to:

81a^4-16

The degree of our simplified answer is 4

3 0
1 year ago
Sue buys 5 pieces of fabric.Each piece is 1 7/10 yards long.What is the total length of the fabric she buys?One yard of the fabr
irina [24]

Answer:

The total length of fabric sue buys is 8.5 yards and total cost of the fabric is $42.5 .

Step-by-step explanation:

As given

Sue buys 5 pieces of fabric.

Each\ piece\ is\ 1 \frac{7}{10}\ yards\ long.

i.e

Each\ piece\ is\ \frac{17}{10}\ yards\ long.

Total\ length\ of\ fabric\ sue\ buys = \frac{5\times 17}{10}\ yards

Total\ length\ of\ fabric\ sue\ buys = \frac{85}{10}\ yards

In the decimal form

Total length of fabric sue buys = 8.5 yards

As given

One yard of the fabric costs $5

Total\ cost\ of\ fabric\ sue\ buys = 8.5\times 5

                                                            = $ 42.5  

Therefore the total length of fabric sue buys is 8.5 yards and total cost of the fabric is $42.5 .


5 0
4 years ago
12. Which of the following pairs of numbers contains like fractions?
stepladder [879]
So will be choice D.

bc. 5/6 = 10/12 = 2*5/2*6 = 5/6
4 0
3 years ago
Does anyone know how to do this? I’m lost
Nataly [62]

Answer: B

Step-by-step explanation:

To find the inverse function, you switch x with y and y with x. Then, you solve for y.

y=(x-1)^{2} -4                                  [switch x with y, and y with x]                        

x=(y-1)^2-4                                  [add both sides by 4]

x+4=(y-1)^2                                  [square root both sides]

\sqrt{x+4} =y-1                                    [add both sides by 1]

\sqrt{x+4} +1=y

f^-^1(x)=1+\sqrt{x+4}

Now that we know the inverse function, we can actually tell that the answer is B. We know this because of the restriction that f(x) is x≤1. This makes it positive, and B the answer.

7 0
3 years ago
Solve the system by substitution.<br> 2.5x-3y=-13<br> 3.25x-y=-14
MrMuchimi

Answer:

x=-4

y=1

Step-by-step explanation:

For the given system of equations,

2.5x-3y=-13.....eqn(1)

3.25x-y=-14.....eqn(2)

We first make y the subject of eqn (2)

This implies that,

y=3.25x+14.....eqn(3)

We substitute eqn (3) into eqn (1)

2.5x-3(3.25x+14)=-13

2.5x-9.75x-42=-13

-42+13=9.75x-2.5x

-29=7.25x

Dividing through by 7.25, we obtain

x=-4

We now put the value of x into eqn (2)

3.25(-4)-y=-14

This implies that,

-13+14=y

y=1

4 0
3 years ago
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