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cupoosta [38]
3 years ago
6

Please help, last unit of algebra 2, thankyou!!!!!!!!!!!!​

Mathematics
1 answer:
Mumz [18]3 years ago
6 0

Answer:

\cot \theta =  \frac{8}{15} \\\\\sec \theta =  \frac{17}{8} \\\\\csc \theta =  \frac{17}{15}

Step-by-step explanation:

\huge \tan \theta =  \frac{15}{8} ...(given) \\  \\  \huge \because \:  \cot \theta =  \frac{1}{ \tan \theta} \\  \\  \huge \therefore \: \cot \theta =  \frac{1}{ \frac{18}{8} } \\  \\  \huge \therefore \:  \cot \theta =  \frac{8}{15}  \\  \\ also \\ \huge  \sec \theta =  \frac{17}{8}  \\

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Mr. Louis is taking a bus tour. The cost of the bus tour includes: $25.75 for the bus ride $9.25 for lunch admission to two muse
Brums [2.3K]

Answer: admission cost is 21 dollars

Step-by-step explanation:

4 0
3 years ago
In a sample of 679 new websites registered on the Internet, 42 were anonymous (i.e., they shielded their name and contact inform
Semmy [17]

Answer:

95% Confidence interval:  (0.0429,0.0791)      

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 679

Number of anonymous websites, x = 42

\hat{p} = \dfrac{x}{n} = \dfrac{42}{679} = 0.0618

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.96

Putting the values, we get:

0.0618\pm 1.96(\sqrt{\dfrac{0.0618(1-0.0618)}{679}}) = 0.0618\pm 0.0181\\\\=(0.0429,0.0791)

is the required confidence interval for proportion of all new websites that were anonymous.

8 0
3 years ago
Plz help quick. This question is on a quiz in Edg 2020 whoever answered first will get brainliest and I will be giving 50 points
lys-0071 [83]

Answer:

A B and D

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
I really need help quick
Natali [406]

Answer:

\sf x=2+\sqrt{6},\:x=2-\sqrt{6}

Explanation:

\sf y = x^2 -4x

given that y = 2

\sf x^2 -4x = 2

\sf x^2 -4x -2 = 0

using quadratic formula:

\sf x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a}  \    \ \ when  \   ax^2 + bx + c = 0

\rightarrow \sf x_{1,\:2}=\dfrac{-\left(-4\right)\pm \sqrt{\left(-4\right)^2-4\cdot \:1\cdot \left(-2\right)}}{2\cdot \:1}

\rightarrow \sf x_1=\dfrac{-\left(-4\right)+2\sqrt{6}}{2\cdot \:1},\:x_2=\dfrac{-\left(-4\right)-2\sqrt{6}}{2\cdot \:1}

\rightarrow \sf x=2+\sqrt{6},\:x=2-\sqrt{6}

in decimals:

\rightarrow \sf x=4.45 , \ -0.45

5 0
2 years ago
WRITE AN EQUATION FOR EACH OF THESE AND SOLVE IT TO FIND THE VALUE OF THE UNKNOWN NUMBER:
castortr0y [4]

a) a *5+5= 20

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b) b/5 - 5 = 4

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b =9*5

b = 45

8 0
3 years ago
Read 2 more answers
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