Does the product of two real numbers with the same sign result in a positive? I think it does but not completely sure.

Mathematics

2 answers:

Karo-lina-s [1.5K]3 years ago

5 0

Answer:

Two negatives multiplied by each other equals positive, but a positive multiplied by a negative equal negative. A positive multiplied by a positive also obviously equals a positive.

Step-by-step explanation:

I don't know if that was what you were asking but that's all I understood lol

Lorico [155]3 years ago

4 0

Answer:

To multiply two positive numbers, multiply their absolute values. The product is positive. To multiply two negative numbers, multiply their absolute values.

Step-by-step explanation:

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Write the equation of the line that has a slope of 3 and passes through (5, 11)

Marina CMI [18]

Answer:

3x-4

Step-by-step explanation:

y=ax+b general type of the line

a is the slope

y=3x+b

put 5 instead of the x and put 11 instead of the y

11=15+b

b=(-4)

Equation is 3x-4

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2 years ago

I need help on what the area of the shape is because they didn’t tell us how to find it

Leto [7]

Answer:

The area of the shape (trapezoid) is 55 square feet.

Step-by-step explanation:

The formula to get the area of a trapezoid is $((b_{1} +b_{2} )/2)*h$ . b1 is one of the bases, b2 is the other and h is the height.

First, you need to find the average of the bases:

(15+7=22)/2=11

Then, you multiply that by the height.

11*5=55

Lastly, you add the units.

55 square feet is the answer

8 0

3 years ago

The slope of the line containing the points (-2,3) and (-3,1) is

Irina18 [472]

To calculate the slope containing two points, we can use that formula:

$\mathsf{m=\dfrac{y_2-y_1}{x_2-x_1}}$

"m" represents the slope and coordinates are expressed as follows: (x, y)

Let's go to the calculations.

$\mathsf{m=\dfrac{y_2-y_1}{x_2-x_1}}\\\\\\ \mathsf{m=\dfrac{1-3}{-3-(-2)}}\\\\\\ \mathsf{m=\dfrac{-2}{-3+2}}\\\\\\ \mathsf{m=\dfrac{-2}{-1}}\\\\\\ \mathsf{m=\dfrac{2}{1}}\\\\\\ \underline{\mathsf{m=2}}$