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3 years ago

Question 3

Mathematics

2 answers:

Zarrin [17]3 years ago

7 0

Answer:

13.4x - 0.5

Step-by-step explanation:

13.4x - 5.9 - 7.1 + 13.5

This may seem complicated, but it is really pretty simple once you get the hang of it.

First, you would organize your terms.

13.4x - 5.9 - 7.1 + 13.5

Then you would add your like terms.

-5.9 - 7.1 + 13.5 = 0.5

So the answer to your problem would be 13.4x - 0.5

telo118 [61]3 years ago

5 0

Answer:

A........................

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Step-by-step explanation:

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Area(A)=L×B

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8-(0,9)^2+(1,2)^3×(5-2)=?

Sergeu [11.5K]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

FACTOR. THEOREM is x-3 a factor?!

Oduvanchick [21]

Answer:

Yes, (x - 3) is a factor of P(x) and 3 is a zero or root of P(x)

Step-by-step explanation:

Determine whether or not (x - 3) is a factor by using synthetic division with +3 as the divisor. The coefficients of the polynomial p(x) are {2 -5 -4 0 9}.

Setting up synthetic division:

3 / 2 -5 -4 0 9

6 3 -3 -9

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

2 1 -1 -3 0

Since the remainder is zero (0), we know that 3 is a root of the polynomial P(x) and that (x - 3) is a factor of said polynomial.

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3 years ago

Find sin θ if cos θ = 4/7 and θ in quadrant IV. Give an exact answer.

11111nata11111 [884]

$\bf sin(\theta)=\cfrac{opposite}{hypotenuse}
\qquad \qquad 
% cosine
cos(\theta)=\cfrac{adjacent}{hypotenuse}\\\\
-------------------------------\\\\
cos(\theta)=\cfrac{4}{7}\cfrac{\leftarrow adjacent=a}{\leftarrow hypotenuse=c}
\\\\\\
\textit{using the pythagorean theorem to get the opposite side or "b"}
\\\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-a^2}=b\implies \pm\sqrt{7^2-4^2}=b
\\\\\\
\pm \sqrt{33}$

now, the square root gives us both +/- versions, which is it? well, we know the angle θ is in the IV quadrant, well, the sine is "b" is negative there, thus is the negative version then

thus $\bf sin(\theta)=\cfrac{opposite}{hypotenuse}\implies sin(\theta)=\cfrac{-\sqrt{33}}{7}$

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4 years ago