Yo I need help with this question bro

Mathematics

1 answer:

SOVA2 [1]2 years ago

5 0

Answer: I think the mean would be 7 but I’m not entirely sure

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Sin(θ) cos(3θ) + cos(θ) sin(3θ) = 0

pychu [463]

$\displaystyle\\
\text{We use formula:}\\
\sin(\alpha+\beta)=\sin(\alpha)\cos(\beta)+cos(\alpha)\sin(\beta)\\\\
Resolve:\\\\
\sin(\Theta)cos(3\Theta)+cos(\Theta)sin(3\Theta)=0\\\\
\sin(\Theta+3\Theta)=0\\\\
\sin(4\Theta)=0\\\\
\text{We have two solutions:}\\\\
4\Theta=0~~\Longrightarrow~~\Theta=\frac{0}{4}=0~~\Longrightarrow~~ \boxed{\Theta_1=0+2k\pi}\\\\
4\Theta=\pi~~\Longrightarrow~~\Theta=\frac{\pi}{4}~~\Longrightarrow~~ \boxed{\Theta_2=\frac{\pi}{4}+2k\pi}\\\\$

5 0

3 years ago

Question 1 of 41

borishaifa [10]

Answer:

di ko Alam

Step-by-step explanation:

hahahaahahah

3 0

3 years ago

Really need this badly

Otrada [13]

Answer:

You need to find the surface area.

5 0

3 years ago

Explain how to find the value of z if you know that 100x*2 + 120x + z is a perfect square trinomial

wariber [46]

Divide the value of "b" by 2 and then square it.

(b / 2)²
= (120 / 2)²
= (60)²
= 3600

Therefore the value of z is 3600. That's at least what I believe lol

7 0

3 years ago

Read 2 more answers

PLEASEEEE HELPPPP ASAPPPP

adelina 88 [10]

Answer:

x ≈ 7.1

Step-by-step explanation:

Using the cosine ratio in the right triangle.

cos27° = $\frac{adjacent}{hypotenuse}$ = $\frac{KL}{KM}$ = $\frac{6.3}{X}$ ( multiply both sides by x )