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aleksklad [387]
3 years ago
7

Which of the following best explains why cos2pi/3 is not equal to cos5pi/3?

Mathematics
2 answers:
const2013 [10]3 years ago
6 0

Answer: the angles do not have the same reference angle.

Step-by-step explanation:

NNADVOKAT [17]3 years ago
3 0

Answer:

it is B) Cosine is negative in the second quadrant and positive in the fourth quadrant.

Step-by-step explanation:

just took the test on edg:)

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If two lines are parallel and one has a slope of 8, what is the slope of the other line
tresset_1 [31]
Answer: 8

Parallel lines always have the same slope. 

[I attached a picture that might help show you]

The lines do NOT Intersect.

6 0
3 years ago
For a school fundraiser, Mai will make school spirit bracelets. She will order bead wiring and alphabet beads to create the scho
Ket [755]

Answer: Total number of bracelet: 235

Step-by-step explanation:

Given:

Total budget= $1,500

Spend on wire = $250

Per braclet beads = $5.30

Find:

Total number of bracelet

Computation:

Total number of bracelet = [1,500 - 250]

Total number of bracelet = [1,250/ 5.30

Total number of bracelet = 235.849

Total number of bracelet = 235 [By round minium]

8 0
3 years ago
F(x)= <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4x%20-%207%7D%7B10%7D%20" id="TexFormula1" title=" \frac{4x - 7}{10} "
Naily [24]

Answer:

To find f-¹(x) of f(x) equate f(x) to y

That's

f(x) = y

So we have

y =  \frac{4x - 7}{10}

Next interchange the variables that's x becomes y and y becomes x

That's

x =  \frac{4y - 7}{10}

Next make y the subject

Cross multiply

We have

4y - 7 = 10x

Move -7 to the right side of the equation

4y = 10x + 7

Divide both sides by 4

We have the final answer as

y =  \frac{10x + 7}{4}

So

f ^{ - 1} (x) =  \frac{10x + 7}{4}

Hope this helps you

7 0
3 years ago
8 over 15? is it closer to 0, 1 over 2 or 1
ruslelena [56]
8/15 is about 0.53
It would be closer to 1/2 or 1 over 2
4 0
3 years ago
Read 2 more answers
What happens to the interval as the level of confidence is​ changed? Explain why this is a logical result.
Elan Coil [88]

Answer with explanation:

A x% confidence interval interprets the percentage of certainty that a person can believe that the true population parameter.

It is also represented as Point estimate ± Margin of error

Confidence level is proportional to the Margin of error.

  • As confidence level increases the error bound increases that makes the confidence interval broader.
  • As confidence level decreases the error bound decreases , making the confidence interval narrower.
6 0
3 years ago
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