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2 years ago

What is (7s^2+3s)-(4s^2-3s+1) in simplest form?

Mathematics

1 answer:

DENIUS [597]2 years ago

5 0

First distribute the negative over the parentheses:-
= 7s^2 + 3s - 4s^2 + 3s - 1
= 3s^2 +6s - 1

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Need help on this guys

MakcuM [25]

Answer:

pretty sure its 5

Step-by-step explanation:

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2 years ago

Simplify the expression cos x cot x+ sin x please select the best answer from the choices provided a.0, b.csc x, c. Tan x, d sec

expeople1 [14]

Answer:

$cot x = \frac{cos x}{sin x}$

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

Step-by-step explanation:

For this case we have the following expression given:

$cos x cot x + sin x$

We know from math properties that the definition for cot is $cot x = \frac{cos x}{sin x}$

If we use this definition we got:

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

Now we can use the following identity:

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

4 0

3 years ago

Study transportation

rusak2 [61]

It’s an logistic management i don’t know what is the question doe

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2 years ago

What is the simplified answer of ∛27×250

Kaylis [27]

Answer:

750 if just 27 is being rooted

18.9 if 27 x 250 is being rooted

Step-by-step explanation:

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2 years ago

Which compares the modes of the data?

sveta [45]

Answer:

I think C

Step-by-step explanation:

5 0

2 years ago

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