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jeyben [28]
3 years ago
11

Simplify each expression.- 13 x 12​

Mathematics
2 answers:
Paraphin [41]3 years ago
3 0

Answer:

-156

Step-by-step explanation:

You have to multiply both figures and then choose the symbol on the largest number, its that symbol. Hope u choose the correct one :p

postnew [5]3 years ago
3 0

Answer:

-156

Step-by-step explanation:

simply multiply the two numbers together then you will be getting -156

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Which equation in point-slope form contains the point (−3, 5) and has a slope of −4?
Oksi-84 [34.3K]

Answer:

y - 5 = -4(x + 3)

Step-by-step explanation:

This question is asking you to use and make an equation using the base of the "point-slope form." This is a common equation used when dealing with coordinates and graphs in math. The point-slope form equation looks like this:

y - y₁ = m(x - x₁).

We are going to need to use this equation base to create our problem from the information given. If you are wondering what those subscripts of 1 mean (the 1 in y₁ and x₁), I will explain. Remember that:

slope (m) = <u>y - y₁</u>

                  x - x₁

So, our first y value (which is the y-coordinate of 5 in [-3, 5]) can be added into the problem base that I had mentioned above:

y - <u>5</u> = m(x - x₁).

Now, we need to place the first x value (which is the -3 in [-3, 5]) can be added into the base problem once more:

y - 5 = m(x - (<u>-3</u>)).

Because a negative number with a negative symbol in front of it creates a positive, we can change that as well:

y - 5 = m(x + 3).

Fortunately, the question provides a slope ready for use. The question says that the slope is -4, so we can place this into the equation now:

y - 5 = -4(x + 3).

I hope that this helps.

3 0
3 years ago
2x2 – 9x + 2 = –1
Reika [66]

Answer:

C)  The discriminant is greater than 0, so there are two real roots

Step-by-step explanation:

<u>Discriminant</u>

b^2-4ac\quad\textsf{when}\:ax^2+bx+c=0

\textsf{when }\:b^2-4ac > 0 \implies \textsf{two real roots}

\textsf{when }\:b^2-4ac=0 \implies \textsf{one real root}

\textsf{when }\:b^2-4ac < 0 \implies \textsf{no real roots}

2x^2-9x+2=-1

\implies 2x^2-9x+3=0

\implies a=2, b=-9, c=3

\begin{aligned}b^2-4ac &=(-9)^2-4(2)(3)\\& =81-24\\&=57 > 0\implies \textsf{two real roots}\end{aligned}

5 0
2 years ago
A telephone company offers a monthly cellular phone plan for $ 39.99 It includes 300 anytime minutes plus $ 0.25 per minute for
Nataly [62]
A. 39.99 
b. 39.99 + 0.25(35) = 48.74
c. 39.99 + 0.25(1) = 40.24
3 0
3 years ago
Help me pls Thxsssss
spayn [35]

Answer:

أيتها القبيحة أيتها العاهرة الغبية تذهب إلى المدرسة

Step-by-step explanation: أيتها القبيحة أيتها العاهرة الغبية تذهب إلى المدرسة

8 0
3 years ago
Factorize (a+b)² - (a-b)² ​
marysya [2.9K]
The answer is 4ab

hope this helps you
7 0
2 years ago
Read 2 more answers
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