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svlad2 [7]
3 years ago
11

What is the product of (5r+2)(3r-4)

Mathematics
1 answer:
OLEGan [10]3 years ago
8 0

Answer:

\large\boxed{(5r+2)(3r-4)=15r^2-14r-8}

Step-by-step explanation:

(5r+2)(3r-4)\qquad\text{use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(5r)(3r)+(5r)(-4)+(2)(3r)+(2)(-4)\\\\=15r^2-20r+6r-8\qquad\text{combine like terms}\\\\=15r^2+(-20r+6r)-8\\\\=15r^2-14r-8

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Divide write the answer in simplest form
Rom4ik [11]

Answer:

3 is the answer

1/3*9/1=9/3=3

Step-by-step explanation:

6 0
2 years ago
What is the price if you mark up $50 by 10%
BARSIC [14]

Answer:

55

Step-by-step explanation:

Original price = 50 and percent markup is 10%

The increase is the original price times the percent markup

increase = 50 * 10%

increase  = 50*.10

                = 5

The new price is the original price plus the increase

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8 0
3 years ago
Read 2 more answers
Help pls i really need help
Naddik [55]
<h3>Answer:  33%</h3>

===========================================================

Explanation:

1/3 converts to the decimal form 0.333333... where the 3's go on forever

5/3 is a similar story but 5/3 = 1.666666.... where the '6's go on forever

The notation 0.\overline{6} indicates that the 6's go on forever.

So, 0.\overline{6} = 0.666666\ldots

The horizontal bar tells us which digits repeat. As another example, 0.\overline{123} = 0.123123123123\ldots

The three dots just mean "keep this pattern going forever".

----------

Everything mentioned so far has the decimal portions go on forever repeating some pattern over and over.

The only one that doesn't do this is 33% which converts to the decimal form 0.33

The value 0.33 is considered a terminating decimal since "terminate" means "stop". So this is the value that doesn't fit in with the other three items mentioned.

3 0
2 years ago
ANYONE KNOWS THAT ANSWER FOR THIS PLEAS EHELP ME ASAP
Tasya [4]

Answer:

triangular prism

Step-by-step explanation:

Shape 1 attached is a triangular prism it has the same name and same net but is not identical as its slightly longer. The top side has 5 edges and its base has 4 edges

Has the same Faces: 5

Has the same Edges: 9

Has the same Vertices: 6

Shape 2 attached, is called a square based pyramid

It differs as its top side has 4 edges and its base has 4 edges where the base is the only common side and slope as the other one.

Faces: 5

Edges: 8

Vertices: 5

3 0
3 years ago
Which number represents a rational repeating decimal? A. 0.77678 B. 2 5/8 <br> C. 7/9 D. 6.0
hjlf
The answer to your question is A.
3 0
3 years ago
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