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Ivahew [28]
2 years ago
15

!!!20 POINTS AND BRAINLIEST!!!HELP ASAP!!!

Mathematics
2 answers:
12345 [234]2 years ago
4 0

Answer:

(0,3) and (4,-5)

Step-by-step explanation:

f(x) just means y and so does g(x).

Both equations are equal to y. So they are equal to each other. Set equal to each other to solve. After finding x, don't forget to find the y that goes with each x. See image.

8_murik_8 [283]2 years ago
4 0

The values of the solution of the given system of equation are (0,3) and (4,-5)

<h3>How to find the solution to the given system of equation?</h3>

For that , we will try solving it first using the method of substitution in which we express one variable in other variable's form and then you can substitute this value in another equation to get a linear equation in one variable.

If there comes a = a situation for any a, then there are infinite solutions.

If there comes wrong equality, say for example, 3=2, then there are no solutions, else there is one unique solution to the given system of equations.

We have been given the system of equation,

f(x) = -x^2 + 2x + 3

g(x) = -2x + 3

Both equations are equal to y.

y = -x^2 + 2x + 3\\y= -2x + 3

So they are equal to each other.

by solving both the equation

-x^2 + 2x + 3 = -2x + 3\\\\ x^2 -4x = 0\\

x(x-4) = 0

Therefore, x = 4 and x= 0

To find the value of y,

y = -2x + 3

y = -2(4) + 3

y = -5

y = -2x + 3

y = -2(0) + 3

y = 3

Learn more about the equation here:

brainly.com/question/26254258

#SPJ2

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I need to find the equations for these solutions
wlad13 [49]

Answer:

hope these answers helps u out

Step-by-step explanation:

PLZZ MARK ME AS BRAINLIEST

4 0
2 years ago
Read 2 more answers
HELP ASAP! AGE PROBLEM!! WILL MARK BRAINLIEST!!!
Gennadij [26K]

Answer:

<u>The present age of the mother is 30 years old</u>

Step-by-step explanation:

Age of Jane = x

Age of Billy = 5x (Billy is five times as old as Jane)

Age of Sara = 15x (Their mother is now three times as old as Billy)

In 2 years Sara will be eight times as old as Jane, therefore:

15x + 2 = 8 (x + 2)

15x + 2 = 8x + 16

15x - 8x = 16 - 2

7x = 14

x = 14/7

x = 2 ⇒ 5x = 10x ⇒ 15x = 30

Jane's present age is 2, Billy's present age is 10 and Sara's present age is 30

<u>The present age of the mother is 30 years old</u>

5 0
3 years ago
Solve for x.<br> x-8=-20
NeX [460]

Answer:

Step-by-step explanation:

To solve:

x - 8 = -20

Simply add +8 to both sides of the equation.

It becomes :

x - 8 +8 = -20 + 8

Note that, -8 + 8 will cancel out, and results to zero.

Therefore the equation becomes :

x = -20 + 8

x = -12.

Hope this helped!

8 0
3 years ago
What is the mean absolute deviation of the data set?
Ronch [10]

Answer:

the mean absolute deviation of the data set is 2.

Step-by-step explanation:

To calculate the mean absolute deviation of a data set, we need to follow the following steps:

Step 1: Calculate the mean.

Step 2: Calculate how far away each data point is from the mean (always keeping a possitive distance).

Step 3: Calculate the mean of the deviations.

Step 1: The mean of the data set is:

Mean = (12 + 10 + 10 + 8 + 6+ 7 + 7 + 12)/8 = 72/8 = 9

Step 2:

{12 -9, 10-9, 10-9, 9-8, 9-6, 9-7, 9-7, 12-9} = {3, 1, 1, 1, 3, 2, 2, 3}

Step 3: (3 + 1 + 1 + 1 + 3 + 2 + 2 + 3)/8 = 2

In conclusion, the mean absolute deviation of the data set is 2. Which corresponds to the option B.

5 0
3 years ago
Write 5,674,890 in word form
wolverine [178]
It is; Five million Six hundred seventy four thousand eight hundred ninety. As simple as that.
5 0
3 years ago
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