Ask question

Ask question

All categories

soldi70 [24.7K]

2 years ago

7

Pls help me ASAP the plot is on the top I need help with question 16. In class 1 now many students scored 75 or higher. There ar

e 28 students in class one

1 answer:

Virty [35]2 years ago

7 0

Answer:

hey

Step-by-step explanation:

You might be interested in

I need help again please

Verdich [7]

A variety of different religions

5 0

2 years ago

Read 2 more answers

Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal plac

Fed [463]

Answer:

$\theta=k\pi, \hspace{3}k\in Z\\\\ or\\\theta =2\pi k \pm arccos(\frac{1 }{8} ), \hspace{3}k\in Z\\$

Step-by-step explanation:

Factor constant terms:

$-2(-4sin(2\theta)+sin(\theta))=0$

Divide both sides by -2:

$sin(\theta)-4sin(2 \theta)=0$

Expand trigonometric functions using the fact:

$sin(2 \theta) =2 sin(\theta) cos(\theta)$

So:

$sin(\theta) -8sin(\theta)cos(\theta)=0$

Factor sin(x) and constant terms and multiply both sides by -1:

$sin(\theta) (8cos(\theta)-1)=0$

Split into two equations:

$(1)=8cos(\theta)-1=0\\\\(2)=sin(\theta)=0$

For (1)

Add 1 to both sides and divide both sides by 8:

$cos(\theta)=\frac{1}{8}$

Take the inverse cosine of both sides:

$\theta =2\pi k \pm arccos(\frac{1 }{8} ), \hspace{3}k\in Z$

For (2)

Simply take the inverse sine of both sides

$\theta = k \pi, \hspace{3}k\in Z$

Therefore, the solutions are given by:

$\theta=k\pi, \hspace{3}k\in Z\\\\ or\\ \theta =2\pi k \pm arccos(\frac{1 }{8} ), \hspace{3}k\in Z\\$

8 0

2 years ago

NEED HELP WILL GUVE 5 stars

Bumek [7]

Answer:

m=15

Step-by-step explanation:

m/9 + 2/3

x 3 7/3 x 3 = 21/9

m/9 + 6/9 = 21/9

21-6=15

15/9 + 6/9 = 21/9 = 7/3

6 0

2 years ago

Solve the inequality −x/2<4

FinnZ [79.3K]

Isolate the x. First, multiply 2 to both sides

-x/2(2) < 4(2)

-x < 4(2)

-x < 8

Isolate the x. Divide - 1 to both sides (because you are dividing a negative number, flip the sign).

-x/ -1 < 8/-1

x > -8 is your answer

hope this helps

5 0

2 years ago

Help please I'm lost

yarga [219]

36 1/2 to 37.

45.5 - 36 1/2 = 9

those would be the ones I'd click

3 0

2 years ago