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3 years ago

I need help on how to solve the problem and the correct answer :)

Mathematics

1 answer:

lakkis [162]3 years ago

3 0

This is a system of linear equations. First, you can add the two equations together to eliminate the y so that you can solve for x:

-5x + -7x = 0 + -96

-12x = -96

x = 8

Use x to solve for y:

-5 * 8 + 8y = 0

Add 40 to both sides and divide by 8:

y = 5

So, x = 8 and y = 5.

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Who can find the value of x

NARA [144]

105 = 67 + x
x = 105 - 67
x = 38

7 0

3 years ago

please answer the question on the screenshot below, also please explain to me how you got your answer.

frutty [35]

QUESTION 1

The given functions are;

$f(x)=5x^2-2x$ and $g(x)=5x^2+x-4$

$(f+g)(x)=f(x)+g(x)$

$(f+g)(x)=5x^2-2x+3x^2+x-4$

We regroup like terms to obtain;

$(f+g)(x)=5x^2+3x^2-2x+x-4$

This simplifies to;

$(f+g)(x)=8x^2-x-4$

The correct answer is A.

QUESTION 2

The given functions are;

$f(x)=3x^2+5$ and $g(x)=x-2$ .

$(fg)(x)=(f(x))(g(x))$

This implies that;

$(fg)(x)=(3x^2+5)(x-2)$

$\Rightarrow (fg)(x)=3x^3-6x^2+5x-10$

The correct answer is B.

QUESTION 3

The given functions are

$f(x)=3x^2+10x-8$ and $g(x)=3x^2-2x$ .

$(\frac{f}{g})(x)=\frac{f(x)}{g(x)}$

$(\frac{f}{g})(x)=\frac{3x^2+10x-8}{3x^2-2x},x\ne0,\frac{2}{3}$

We factor to obtain;

$(\frac{f}{g})(x)=\frac{(x+4)(3x-2)}{x(3x-2)},x\ne0,\frac{2}{3}$

We cancel the common factors to obtain;

$(\frac{f}{g})(x)=\frac{x+4}{x},x\ne0,\frac{2}{3}$

The correct answer is A.

5 0

3 years ago

When you shift a function, you are _______ it

MrMuchimi

I'd say you are stretching it because your changing the shape. im not very sure

3 0

3 years ago

Read 2 more answers

7. Sandra had a coupon for 20% off. It took off $60 from the total cost. What was the original price of the item? Proportion Sol

Liula [17]

I’m pretty sure it’s b tell me if I’m wrong tho~~

6 0

3 years ago

Mrs. Galicia is creating a bunny farm. The farm starts with 820 bunnies and is growing at a rate of 20.75% per month. How many m

drek231 [11]

The number of months it would take the bunny farm to triple in size is 5.3 months.

<h3>When would the bunny farm be triple its size?</h3>

The formula that can be used to determine the number of months it would take Mrs. Galicia's bunnies to triple in size is:

Number of years = (In FV / PV) / r

FV = future population of the bunnies
PV = present population of the bunnies
r = rate of growth
FV / PV = 3

IN(3) / 0.2075 = 5.3 months

To learn more about tripling time, please check: brainly.com/question/21841217

8 0

2 years ago