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3 years ago

Simplify the expression below: (7y^2-3y)-(4y^2+2y-2)

Mathematics

1 answer:

Otrada [13]3 years ago

8 0

Answer:

−5y2−8y+5-5y2-8y+5 there u go

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Need 4 and 5 done asap! pls and thank you

NeX [460]

Problem 4:

4a = -15

4b = -75

4c = 125

Problem 5:

5a = -5

5b = 95

5c = -19 $\frac{1}{3}$

Step-by-step explanation:

<em> See attached for my work. </em>

For problem 4, we substitute the different values given for x and solve.

For problem 5, we set the function equal to the given values and solve.

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3 years ago

What is the perimeter of the regular hexagon? 3 m meters

baherus [9]

The perimeter eighteen

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3 years ago

Read 2 more answers

After an earthquake 4/7 of all claims were paid within a month. Of all remaining claims I have not been paid yet 2/3 of them wer

koban [17]

9514 1404 393

Answer:

multiplication

Step-by-step explanation:

In math, "X of Y" means that X is multiplied by Y*. Here, you need to figure out what values are being multiplied.

The fraction of claims remaining unpaid after the first month is ...

1 - 4/7 = 7/7 -4/7 = 3/7 . . . . fraction of claims unpaid after month 1

The problem statement tells you 2/3 of these are paid in the second month. That is ...

(2/3) × (3/7) = 2/7 . . . . of the total of all claims

2/7 of all claims were paid in the second month.

_____

* The interpretation of the word "of" will depend on the context. Here, we're referring to X being a percentage or fraction, as in "2/3 of 3/7".

In some uses, the word "of" may signify that X is multiplied by a fraction with Y as the denominator, as in "5 of 8" (meaning 5/8), for example. If Y is an object, the X is still a multiplier, as in "3 of the bags of cement".

8 0

3 years ago

What are the zeros of the function below? F(x)= (x-1)(x+1)/6(x-4)(x+7)

Lisa [10]

Answer:

+1 and -1

Step-by-step explanation:

The function in this problem is:

$f(x)=\frac{(x-1)(x+1)}{6(x-4)(x+7)}$

First of all, we have to define the domain of the function, which is the set of values of x for which the function is defined.

In order to find the domain, we have to require that the denominator is different from zero, so

$6(x-4)(x+7)\neq 0$

which means:

$x\neq 4\\x\neq -7$

So the domain is all values of x, except from 4 and -7.

Now we can solve the problem and find the zeros of the function. The zeros can be found by requiring that the numerator is equal to zero, so:

$(x-1)(x+1)=0$

This is verified if either one of the two factors is equal to zero, therefore:

$x-1=0\\\rightarrow x=+1$

and

$x+1 = 0\\\rightarrow x=-1$

We see that both values are part of the domain, so they are acceptable values: so the zeros of the function are +1 and -1.

7 0

3 years ago

Terri has 5 boxes of flower seeds. She wants to give the seeds away to friends. If she gives 1/8 of a box away how many people c

densk [106]

Answer:

She can give 1/8 of a box to 40 people

5x8=40

Step-by-step explanation:

7 0

3 years ago