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3 years ago

Please help! will mark brainliest

Mathematics

2 answers:

nasty-shy [4]3 years ago

7 0

Answer:

The first one is true and the second one is false I think

Margaret [11]3 years ago

6 0

Answer:

Statement Number One- True

Statement Number Two- False

Step-by-step explanation:

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3 years ago

Which expression is equivalent to \root(3)(x^(5)y)

san4es73 [151]

Answer:

$\sqrt[3]{x^{5}y} = x^{\frac{5}{3}}y^\frac{1}{3}$

Step-by-step explanation:

Given

$\sqrt[3]{x^{5}y}$

Required

The equivalent expression

We have:

$\sqrt[3]{x^{5}y}$

Rewrite as an exponent

$\sqrt[3]{x^{5}y} = (x^{5}y)^\frac{1}{3}$

Open bracket

$\sqrt[3]{x^{5}y} = x^{5*\frac{1}{3}}y^\frac{1}{3}$

$\sqrt[3]{x^{5}y} = x^{\frac{5}{3}}y^\frac{1}{3}$

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3 years ago

Solve for 2cos^2theta + 13costheta = -6. theta is >= 0 and < 360 degrees

LiRa [457]

$\\ 2cos^2 \theta+13cos \theta=-6 \\ 2cos^2 \theta+13cos \theta+6=0 \\ 2cos^2 \theta+12cos \theta+1cos \theta+6=0 \\ 2cos \theta(cos \theta+6)+1(cos \theta+6)=0 \\ (2cos\theta +1)(cos\theta+6)=0 \\$

$cos\theta+6=0 \\ cos\theta=-6 \\ \\ cos(x)=|a| \leq 1 \\ |-6| \geq 1 \\ \\$

$2cos \theta+1=0 \\ 2cos \theta=-1 \\ cos \theta=- \frac{1}{2} \\ \theta= \frac{ 2\pi }{3} +2 \pi k~~~k \in Z \\ \\ 0 \leq \theta \ \textless \ 360^{а} \\ 0 \leq \theta \ \textless \ 2 \pi \\ \theta = \frac{2 \pi }{3} \\ \theta = \frac{2 \pi }{3} , \frac{4 \pi }{3}$

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3 years ago