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masya89 [10]
3 years ago
9

(5a-5)(2a+2) Find each product

Mathematics
2 answers:
weeeeeb [17]3 years ago
6 0
(<span>5a-5)(2a+2)
= 5a*2a -5*2a + 2*5a - 5*2
= 10a^2  - 10a + 10a  - 10
= 10a^2 - 10


The product of the equation is </span>10a^2 - 10
Stella [2.4K]3 years ago
6 0

(5a - 5)(2a + 2) \\10a {}^{2}  + 10a - 10a - 10 \\ 10a {}^{2}  - 10
You foil and the add like terms.
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Step-by-step explanation:

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During the last survey, 45% of the 700 employees voted in favor of the new company logo. How many employees voted in favor of th
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7 0
2 years ago
Match the functions in the pictures below
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\sin \binom{4\pi}{11} = \sin \binom{7\pi}{11}

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7 0
3 years ago
Given the point (1, 2) and a slope of 4, write the equation in point slope form.
vitfil [10]

This article is about the math term. For other uses, see Slope (disambiguation).

For the grade (incline or gradient or pitch or slope) of any physical feature, see Grade (slope).

Slope: {\displaystyle m=\left({\frac {\Delta y}{\Delta x}}\right)=\tan(\theta )}{\displaystyle m=\left({\frac {\Delta y}{\Delta x}}\right)=\tan(\theta )}

In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line.[1] Slope is often denoted by the letter m; there is no clear answer to the question why the letter m is used for slope, but its earliest use in English appears in O'Brien (1844)[2] who wrote the equation of a straight line as "y = mx + b" and it can also be found in Todhunter (1888)[3] who wrote it as "y = mx + c".[4]

Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line. Sometimes the ratio is expressed as a quotient ("rise over run"), giving the same number for every two distinct points on the same line. A line that is decreasing has a negative "rise". The line may be practical - as set by a road surveyor, or in a diagram that models a road or a roof either as a description or as a plan.

The steepness, incline, or grade of a line is measured by the absolute value of the slope. A slope with a greater absolute value indicates a steeper line. The direction of a line is either increasing, decreasing, horizontal or vertical.

A line is increasing if it goes up from left to right. The slope is positive, i.e. {\displaystyle m>0}m>0.

A line is decreasing if it goes down from left to right. The slope is negative, i.e. {\displaystyle m<0}m<0.

If a line is horizontal the slope is zero. This is a constant function.

If a line is vertical the slope is undefined (see below).

The rise of a road between two points is the difference between the altitude of the road at those two points, say y1 and y2, or in other words, the rise is (y2 − y1) = Δy. For relatively short distances, where the earth's curvature may be neglected, the run is the difference in distance from a fixed point measured along a level, horizontal line, or in other words, the run is (x2 − x1) = Δx. Here the slope of the road between the two points is simply described as the ratio of the altitude change to the horizontal distance between any two points on the line.

In mathematical language, the slope m of the line is

{\displaystyle m={\frac {y_{2}-y_{1}}{x_{2}-x_{1}}}.}m=\frac{y_2-y_1}{x_2-x_1}.

The concept of slope applies directly to grades or gradients in geography and civil engineering. Through trigonometry, the slope m of a line is related to its angle of incline θ by the tangent function

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Thus, a 45° rising line has a slope of +1 and a 45° falling line has a slope of −1.

5 0
2 years ago
Can anyone help me and give me a example please!
fomenos
I hope I can help!

So, first if all, you have to combine like terms.

You can use shaped to help you combine the like terms.

So, it would be -9x + 12x then 7 - 15

-9x + 12x = 3x
7 - 15 = 8

3x - 8

Example:

5x + 6x + 7 + 7

Combine like terms

5x + 6x = 11x
7+7=14

11x + 14 would be your answer

Have a great day/evening/night! :)
Let me know if you have any additional questions!
-Kappifilms
4 0
3 years ago
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