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3 years ago

What’s the answer for these? Please help!

Mathematics

2 answers:

Ratling [72]3 years ago

7 0

1.yes
2.no
3.yes
4.yes

Anit [1.1K]3 years ago

6 0

Yes no yes yes :)) .

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The diagram represents a flower border that is 3 feet wide

Kipish [7]

Answer:

Step-by-step explanation:

108-15=93

6 0

3 years ago

BRAINLIEST ASAP! PLEASE HELP ME :)

jenyasd209 [6]

<h3>Answers:</h3><h3>There are four solutions and they are</h3>

$\theta = 0$
$\theta = \pi$
$\theta = \frac{7\pi}{6}$ ... this says "7pi over 6"
$\theta = \frac{11\pi}{6}$ ... this says "11pi over 6"

===========================================

Work Shown:

$\sin(\theta)+1 = \cos(2\theta)\\\\\sin(\theta)+1 = 1-2\sin^2(\theta)\\\\\sin(\theta)+1-1+2\sin^2(\theta)=0\\\\2\sin^2(\theta)+\sin(\theta)=0\\\\\sin(\theta)(2\sin(\theta)+1)=0\\\\\sin(\theta)=0 \ \text{ or } \ 2\sin(\theta)+1=0\\\\$

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Solving $\sin(\theta)=0$ leads to $\theta=n\pi$ for any integer n.

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Solving $2\sin(\theta)+1=0$ leads to...

$2\sin(\theta)+1=0\\\\2\sin(\theta)=-1\\\\\sin(\theta)=-\frac{1}{2}\\\\\theta=\arcsin\left(-\frac{1}{2}\right) \ \text{ or } \ \theta=\pi-\arcsin\left(-\frac{1}{2}\right)\\\\\theta=\frac{11}{6}\pi+2\pi n \ \text{ or } \ \theta=\pi-\frac{11}{6}\pi+2\pi n\\\\\theta=\frac{11}{6}\pi+2\pi n \ \text{ or } \ \theta=\frac{-5}{6}\pi+2\pi n\\\\\theta=\frac{11}{6}\pi+2\pi n \ \text{ or } \ \theta=\frac{7}{6}\pi+2\pi n\\\\$

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The general solution set is

$\{\theta=n*\pi, \theta=\frac{11}{6}\pi+2\pi n, \theta=\frac{7}{6}\pi+2\pi n\}$

Again, n is any integer.

Let's look at a table of values where we plug in various integers for n. See the attached image below. Note the stuff in the highlighted yellow cells represents expressions that are between 0 and 2pi = 6.28

Therefore the four solutions are $\{0, \pi, \frac{7\pi}{6}, \frac{11\pi}{6}\}$ after we plug the proper values of n into the expressions, to have things match what the table shows.

6 0

3 years ago

Someone please help me with this please

SSSSS [86.1K]

Answer: (3,2)

Step-by-step explanation:

I think that is the answer.

4 0

2 years ago

Based on the line plot how many recipes call for more than 1/4tsp of salt

yulyashka [42]

Do you think you could maybe insert a picture of the line plot?

Thanks :)

5 0

4 years ago

The grade distribution for students in the introductory

Marina86 [1]

Using the given discrete probability distribution, it is found that the probability that a randomly selected student has a grade higher than a C is given by:

P(X > 2).

<h3>What is the discrete probability distribution for the grade?</h3>

From the table, it is given by:

P(X = F) = P(X = 0) = 0.04.

P(X = D) = P(X = 1) = 0.05.

P(X = C) = P(X = 2) = 0.17.

P(X = B) = P(X = 3) = 0.31.

P(X = A) = P(X = 4) = 0.43.

Grades A and B are greater than C, hence the probability of getting a grade higher than C is given by:

P(X > C) = P(X = A) + P(X = B) = P(X = 3) + P(X = 4) = P(X > 2).

More can be learned about discrete probability distributions at brainly.com/question/24855677

3 0

2 years ago