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fiasKO [112]
3 years ago
10

PLEASE I NEED HELP! THANK YOU.

Mathematics
1 answer:
Elden [556K]3 years ago
4 0

First set up a linear equation  and using the x and y values in the table see if it solves.

It doesn't solve so we know it isn't linear. ( I won't show all those steps because they aren't needed.)

Using the quadratic formula y = ax^2 +bx +c

Build a set of 3 equations from the table:

C is the Y intercept ( when X is 0), this is shown in the table as 6

Now we have y = ax^2 + bx + 6

-2.4 =4a-2b +6

1.4 = a-b +6

Rewrite the equations

a=b/2 -2.1

1.4 = b/2-2.1 +6

b = 5

a = 5/2 -2.1 = 0.4

replace the letters to get y = 0.4x^2 + 5x +6

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Simplify the variable expression by evaluating it's numerical part m-13+42-6
goldfiish [28.3K]

ANSWER

m + 23

EXPLANATION

The given expression is

m - 13 + 42 - 6

We regroup the numerical parts to get;

m + 42 - 6 - 13

Now let us simplify the negative numbers.

m + 42 - 19

We now subtract 19 from 42 to get;

m + 23

We can't simplify further

Hence the simplest form is:

m + 23

3 0
3 years ago
I don’t know how to do this lol this is a test
Artemon [7]

Answer:

D) x+y=-3

Step-by-step explanation:

Basically, if you plug in the x and y-coordinates into an equation, both sides should work out to be equal to each other:

Since -5+2\neq 3, we can eliminate choice A

Since -5-2\neq -3, we can eliminate choice B

Since -5-2\neq 3, we can eliminate choice C

Therefore, since -5+2=-3, then D is correct. Also, 3+(-6)=-3

3 0
2 years ago
Read 2 more answers
If you continue adding fractions according to this pattern when will you reach a sum of 2?
mr Goodwill [35]

Answer:

You will never be able to reach the sum of 2

Step-by-step explanation:

6 0
2 years ago
HELP ASAP!!!
Veseljchak [2.6K]
I don't know. This seems tricky. But I do know that the probability would be 1 divided by the probability. So A and D is Incorrect. Theres never really a 50-50 chance with Locker doors so I'm gonna go with C.

I'm not guaranteed this is the answer. But I do Hope it helps. =)

7 0
2 years ago
Read 2 more answers
** ANSWER QUICKLY TIMED QUIZ **
maks197457 [2]
4x^2+32x-28=0\ \ \ |:4\\\\x^2+8x-7=0\ \ \ |+7\\\\x^2+8x=7\\\\x^2+2x\cdot4=7\ \ \ |+4^2\\\\x^2+2x\cdot4+4^2=7+4^2\\\\(x+4)^2=7+16\\\\(x+4)^2=23\\\\Answer:\ B.(x+4)^2=23
4 0
3 years ago
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