3 years ago

Simplify: -5 + 3a + 6 - 4a.

Mathematics

1 answer:

MatroZZZ [7]3 years ago

4 0

Answer:

-a+11

Step-by-step explanation:

hard to explain. but should be correct

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Help plz i need it :(

mr_godi [17]

Answer:

Step-by-step explanation:

6 0

3 years ago

Factor 15z^2+17z-18 please show work

siniylev [52]

There is no common factor between 15, 17 and 18 because 17 is prime.

15z² +17z - 18 =

d = 17² - 4.15.-18

d = 289 + 1080

d = 1369

z = (-17 +/- \/1369) : 2 * 15

z = (-17 + 37) : 30

z' = 20 : 30 = 2/3

z" = (-17 - 37) : 30

z" = -54 : 30 = -1.8

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7 0

3 years ago

What 0.04 percent form is?

sergij07 [2.7K]

4%
This is because 1 = 100%
0.4 would equal 40%
So 0.04 is 4%

3 0

3 years ago

HELP PLEASE! Chords NO and PQ are congruent. Arc NO measures 4x + 10 and Arc PQ measures 2x + 20. What is each of their measures

Elodia [21]

4x + 10 = 2x + 20
4x - 2x = 20 - 10
2x = 10
x = 5

7 0

2 years ago

A+2/a-5÷a+1/a2-8a+15

krok68 [10]

For $A+\frac{2}{a}-\frac{5}{a}+\frac{1}{a^2}-8a+15$

Combine the fractions $\frac{2}{a} - \frac{5}{a} \ \textgreater \ \mathrm{Apply\:rule}\:\frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c} \ \textgreater \ \frac{2-5}{a}$

$\mathrm{Subtract\:the\:numbers:}\:2-5=-3 \ \textgreater \ \frac{-3}{a}$

$\mathrm{Apply\:the\:fraction\:rule}:\ \frac{-a}{b}=-\frac{a}{b} \ \textgreater \ -\frac{3}{a}$

Therefore our final answer is $A-\frac{3}{a}+\frac{1}{a^2}-8a+15$

Hope this helps!

3 0

3 years ago