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Irina18 [472]
3 years ago
12

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

Mathematics
2 answers:
wel3 years ago
6 0

First distribute 5r to the 3r and -4 to get 15r^2-20r

Second distribute 2 towards 3r and -4 to get 6r-8

Aftr your whole eqausion should look like

15r^2-20r+6r-8

Since 15r^2 cant be added to anything leave it as is and the rest of the equation should be this

15r^2-14r-8

It should be easy to figure out from there

Anit [1.1K]3 years ago
5 0

Answer:

15r^2 − 14r − 8

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Step-by-step explanation:

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A state requires that all boat licenses consist of the letter A or M followed by any five digits. What is the number of groups o
torisob [31]

Answer:

200000

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The boat licenses are strings of six elements. Let's count the number of ways of constructing such string with the given conditions.

There are 2 ways of choosing the first character of the string (A or M). The second character can be any digit, so there are 10 possible choices. The third character is also any digit, so it can be chosen in 10 ways. Similarly, the fourth character can be chosen in 10 ways, and the fifth character can be chosen in 10 ways.

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7 0
3 years ago
A race walker completed a 13 mile walk in 2.5 hours. What is the walker's speed per hour?
Viktor [21]

Answer:

5.2mph

Step-by-step explanation:

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4 0
3 years ago
Please help me please !
Ratling [72]

9514 1404 393

Answer:

  Molly

Step-by-step explanation:

Brady did not properly create a square.

The square of a binomial is ...

  (a -b)² = a² -2ab +b²

Where a²=x² and -2ab = -4x, you find b=2. The constant term in the square is 2²=4. Brady shows it as -4, which is incorrect.

Molly's work is correct.

6 0
3 years ago
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