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3 years ago

Evaluate A 2-B 2 for A = 3 and B = -4. -7 -2 25

Mathematics

1 answer:

kogti [31]3 years ago

6 0

$A^2-B^2$
Substitute the values of A = 3 and B = -4 to the expression:
$3^2-(-4)^2=9-16=-7$

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Help quickly please!!!

sineoko [7]

Answer:

M= -2

B=1

Step-by-step explanation:

Y-intercept is the point where the line crosses through the y line, so you can clearly see that that point is (0,1) we only write the y value because for a y intercept the x value will always be zero

Slope is the rise over run, meaning how much the y value changes over how much the x value changes, so for the two points we use our formula:

$\frac{y1-y2}{x1-x2}$

So now input how much it changes by adding the numbers from each coordinate:

$\frac{(-3)-(1)}{(2)-(0)}$

Simplify:

$\frac{-4}{2}$

But we write it as:

-4/2

This is because this looks more like division

Divide:

-4/2=-2

So, your slope is -2 and the y- intercept is 1

I hope this helps u pls give a brainliest and a thx ;)

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3 years ago

Use the following information to write an equation in terms of x. Then solve the equation and find RS and RT .

Arte-miy333 [17]

Answer:

See below

Step-by-step explanation:

Assuming a number line:

rs + st = rt

3x-16 + 4x-8 = 60

7x -24 = 60

7x = 84

x = 12

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1 year ago

Which of these could be considered a statistical question?

MakcuM [25]

The statistical question would be B.

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3 years ago

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How do you write 94,300 in scientific notation

Andrew [12]

Answer:

9.44 x 10^4 in scientific notation

Step-by-step explanation:

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3 years ago

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The midpoint of AB is M(-4,2). If the coordinates of A are (-6,5), what are the

-Dominant- [34]

Answer:

(-2,-1)

Step-by-step explanation:

Midpoints are found when you do ([x(subscript A) + x(subscript B)]/2, [y(subscript A) + y(subscript B)]. Therefore your equation (for x of B) should look like this:

-4 = ([-6+x]/2)

After you solve for x, you should have gotten -2 for x.

Then you do the same for y:

2 = ([5+y]/2)

You should get -1. Your final answer should be (-2, -1)

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2 years ago