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2 years ago

Determine the period

Mathematics

2 answers:

ratelena [41]2 years ago

6 0

The period is 5 on this graph

kotykmax [81]2 years ago

5 0

The period is 5 for this question. Have a great day

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What equation is graphed in this figure? HELP PLEASE

UkoKoshka [18]

I believe that would be b

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4 years ago

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Find the area of the triangles round to the tenth. Show steps please!

amm1812

Answer:

$\large\boxed{A=89.6}$

Step-by-step explanation:

It's the right triangle. The formula of an area of a right triangle:

$A=\dfrac{leg\cdit leg}{2}$

We have:

$leg=x\\leg=16\\\text{and the angle}\ \alpha=55^o$

Use tangent:

$tangent=\dfrac{opposite}{adjacent}$

$opposite=16,\ adjacent=x$

$\tan55^o\approx1.4281$

Substitute:

$\dfrac{16}{x}=1.4281$ convert the decimal to the fraction

$\dfrac{16}{x}=\dfrac{14281}{10000}$ cross multiply

$14281x=160000$ divide both sides by 14281

$x=\dfrac{160000}{14281}$

$x\approx11.2$

Calculate the area:

$A=\dfrac{(16)(11.2)}{2}=89.6$

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3 years ago

A study of one thousand teens found that the number of hours they spend on social networking sites each week is normally distrib

jek_recluse [69]

The z-value that corresponds to a two-tailed 95% confidence interval is z = +/- 1.96. Then the bounds of the confidence interval can be determined as:
Lower bound = mean - z*SD/sqrt(n) = 20 - 1.96*2/sqrt(100) = 20 - 0.12 = 19.88 hours
Upper bound = mean + z*SD/sqrt(n) = 20 + 1.96*2/sqrt(100) = 20 + 0.12 = 20.12 hours
So the first choice is the correct answer: 19.88-20.12 hours

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3 years ago

Help wil mark BRAINLEST

kari74 [83]

I was wrong the answer is A I just realized that

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3 years ago

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The point (-7, -24) is on the terminal ray of angle θ which is in standard position. A student found the six trigonometric value

Delicious77 [7]

Answer:

The $\sin \theta, \tan \theta, \csc \theta, \cot \theta$ have the wrong values.

Step-by-step explanation:

The point (-7,-24) lies in the third quadrant, where the only tangent function will have a positive value and all the other trigonometric functions are negative.

The origin has a distance from the point is $\sqrt{(- 7)^{2} + (- 24)^{2}} = 25$ .