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Eduardwww [97]
3 years ago
13

Factor the expression r^2+19rs+90s^2

Mathematics
2 answers:
Natasha2012 [34]3 years ago
8 0
The expression factorises to C.
daser333 [38]3 years ago
3 0
The answer to the question is c
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0.75 convercion a mixto
vladimir1956 [14]

Answer:0 3/4

Step-by-step explanation:

6 0
2 years ago
The original quantity is 20 and the new quantity is 15. Adam incorrectly says the percent decrease is about ​14.29%. What is the
Yuki888 [10]

Answer: A. divided the difference of the two quantities by the sum of the two quantities.

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

Explanation:

The difference of the quantities is 20-15 = 5

The sum of the quantities is 20+15 = 35

Dividing those results leads to 5/35 = 0.142857 which rounds to 0.1429

That converts to 14.29%

This is likely the path Adam took. This path is incorrect. The correct steps are shown below

---------------------

Difference = 20-15 = 5

Divide the difference over the original quantity

5/20 = 1/4 = 0.25 = 25%

We have a 25% decrease because the new quantity (15) is smaller than the old quantity (20)

----------------------

Here's another way to approach the problem

A = old value = 20

B = new value = 15

C = percent change

C = [ (B-A)/A ] * 100%

C = [ (15-20)/20 ] * 100%

C = (-5/20)*100%

C = -0.25*100%

C = -25%

The negative C value means we have a negative percent change, ie we have a percent decrease. So this is another way to get a 25% decrease.

4 0
2 years ago
Read 2 more answers
Lalo has 1,500 minutes per month on his cell phone plan. How many more minutes can he use if he has already talked for 785 minut
Mandarinka [93]
He can use 715 minutes for the rest of the month.
7 0
2 years ago
Read 2 more answers
What is the given value of the variable 7/8 times C for C equals eight
goldenfox [79]
7/8 * C

C = 8

7/8 * 8

56/8

7
6 0
3 years ago
Lines c and d are perpendicular. The slope of line c is −23. Which equation is true?
Trava [24]

Answer:

1/23

Step-by-step explanation:

The perpendicular slope will be the opposite reciprocal of the original slope so if slope of c is -23, slope of d is 1/23

4 0
2 years ago
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