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3 years ago

15

ALGEBRAIC EXPRESSIONS: MULTIPLICATION AND DIVISION

1 answer:

Andrei [34K]3 years ago

3 0

Whenever there's a division sign you always TAKE AWAY.

So for the first one you would do 5- -3... Which is 8
This would leave you with the answer x^8

For the second one, I worked out a first:
3- - 1 = 4
So a would be a^4
Then I worked out b:
2- - 3= 5
So b would be b^5

And the final answer to question would be a^2b^5

Hope this helps :)

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Of the 50 US states four have names that start with the letter W? What percentage of the US states have names that start with th

zlopas [31]

8%

create a fraction of the 4 states out of 50 and multiply by 100% to express as a percentage, that is

$\frac{4}{50}$ × 100% = $\frac{400}{50}$ = 8%

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3 years ago

HELP, I don't understand this problem

White raven [17]

Answer:

A

Step-by-step explanation:

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Elis [28]

Answer: 151 books

Step-by-step explanation: 243-65-59+32=151

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Read 2 more answers

.65 repeating as a fraction?

Margarita [4]

Hey there

.65 as a decimal would be <span>13/20
13 divided by 20 = 0.65
0.65 is also know as .65

hope this helps

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3 years ago

A ball is thrown into the air. The height in feet of the ball can be modeled by the equation h = -16t2 + 20t + 6 where t is the

makkiz [27]

$f(t)=h=-16t^2+20t+6

$

a=-16, b=20, c =6

Δ= $b^2-4ac=20^2-4*(-16)*6=400+384=784$

$\sqrt{Δ}=\sqrt{784}=28$

max:

$p=-\frac{b}{2a}=-\frac{20}{-32}=\frac{20}{32}=\frac{5}{8}$

max heigh: $h=-16(\frac{5}{8})^2+20*\frac{5}{8}+6=-16\frac{25}{64}+\frac{100}{8}+6$

$h=-\frac{25}{4}+\frac{50}{4}+6=\frac{-25+50+24}{4}=\frac{49}{4}$

$h=\frac{49}{4}$ at $t=\frac{5}{8}s$

will fall down at t:

$t=\frac{-20-28}{-32}=\frac{-48}{-32}=\frac{3}{2}=1.5$

$t=1.5s$

8 0

3 years ago