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4 years ago

Simplify (5ab^2-4ab 7a^2b) (ab )^-1

Mathematics

1 answer:

algol134 years ago

7 0

$(5ab^2-4ab+7a^2b) (ab )^{-1 }=(5ab^2-4ab+7a^2b) a^{-1}b^{-1}\\\\=\boxed{5b-4+7a}$

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How much would you go up or down if the road stayed at 8% for one mile?

Ghella [55]

An 8% slope up is 422.4 feet up in one mile.

An 8% slope down is 422.4 feet down in one mile.

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8% of 1mile = 0.08 x 5,280-ft = 422.4-ft

3 0

4 years ago

Which inequality correctly compares One-third, Five-sixths, and Three-fifths? One-third < Three-fifths < Five-sixths One-t

lilavasa [31]

Answer:

$\frac{1}{3} \: < \: \frac{3}{5} \: < \: \frac{5}{6}$

Step-by-step explanation:

We want to compare the fractions

$\frac{1}{3}, \frac{5}{6} , \frac{3}{5}$

First, we collect LCM

The LCM of 3,6, and 5 is 30

$\frac{1}{3} = \frac{10}{30} , \\ \frac{5}{6} = \frac{25}{30} , \\ \frac{3}{5} = \frac{18}{30}$

$\frac{10}{30} , \frac{18}{30} , \frac{25}{30}$

This means that

$\frac{1}{3} , \frac{3}{5} , \frac{5}{6}$

Hence,

$\frac{1}{3} \: < \: \frac{3}{5} \: < \: \frac{5}{6}$

5 0

3 years ago

Please help if you can!

mote1985 [20]

When you posted this question, did you mean 36 divided by 100? because if so the correct answer is B

7 0

3 years ago

Read 2 more answers

Attached is the problem, if anyone could help me and explain this I would be grateful.

Kryger [21]

Let's say that, that equals some angle θ
thus $\bf sec^{-1}(1)=\theta \iff sec(\theta)=1\\\\
-----------------------------\\\\
sec(\theta)=\cfrac{1}{cos(\theta)}\qquad thus\\\\
-----------------------------\\\\
\cfrac{1}{cos(\theta)}=1\implies \cfrac{1}{1}=cos(\theta)\implies 1=cos(\theta)
\\\\\\
\textit{now, taking }cos^{-1}\textit{ to both sides}
\\\\\\
cos^{-1}(1)=\theta$

so.. .check your Unit Circle, what is that angle anyway?

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4 years ago

I dont undertand perfect square trinomials

AlexFokin [52]

Answer:

$(3x-5)(3x-5)$

Step-by-step explanation:

$(3x-5)(3x-5)=(3x-5)^2$

4 0

2 years ago