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2 years ago

Do number 9 pleaseeee

Mathematics

1 answer:

Sloan [31]2 years ago

3 0

Answer:

dude your home work needs to unalive its self

Step-by-step explanation:

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Which trigonometric function would you use to solve the problem? If S=27° and TR=7 find TS (picture provided)

Kay [80]

Answer:

b. sin or csc

Step-by-step explanation:

Remember that sine trigonometric function is the ratio of the opposite side of a right triangle to its hypotenuse; in other words:

$sin(\alpha )=\frac{opposite-side}{hypotenuse}$

Also, the cosecant is the inverse of sine, so:

$csc(\alpha )=\frac{1}{sin(\alpha) } =\frac{hypotenuse}{opposite-side}$

Now, for our triangle, our angle is 27°, the longest side of it is TS, and the opposite side of our angle (27°) is TR; therefore, $\alpha =27$ , $hypotenuse=TS$ , and $opposite-side=TR$ .

Replacing values:

- Using the sine trigonometric function

$sin(\alpha )=\frac{opposite-side}{hypotenuse}$

$sin(27)=\frac{TR}{TS}$

$sin(27)=\frac{7}{TS}$

$TS=\frac{7}{sin(27)}$

$TS=15.42$

- Using the cosecant trigonometric function

$csc(\alpha )=\frac{hypotenuse}{opposite-side}$

$csc(27)=\frac{TS}{TR}$

$csc(27)=\frac{TS}{7}$

$TS=7csc(27)$

$TS=15.42$

We can conclude that we can use either the sine trigonometric function or the cosecant trigonometric function to solve the problem.

8 0

2 years ago

What is the mean absolute deviation?<br> 92, 83, 88, 94, 91, 85, 89, 90

Dafna1 [17]

Answer:

https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6-mad/v/mean-absolute-deviation

Step-by-step explanation:

the absolute deviation is 2.75

8 0

2 years ago

A group of 12 students is deciding whether to go to the science center or the zoo. Science center tickets are 3 for $36.75 and z

ohaa [14]

6$

Mark brainliest please

8 0

2 years ago

Read 2 more answers

15 miles right can anyone help me, please

zalisa [80]

Answer:

Yes, 15 miles.

Step-by-step explanation:

You need to use proportions. For example with biking:

$\frac{48}{300} = \frac{b}{75}$

Using cross products:

$300b = 48(75)$

$300b = 3600$

$b = \frac{3600}{300} = 12$

The same is true for running:

$\frac{24}{240} = \frac{r}{30}$

$\frac{1}{10} = \frac{r}{30}$

$10r = 1(30)$

$10r = 30$

$r = 3$

The total distance is the sum of these two:

$d = b + r = 12 + 3 = 15$

8 0

2 years ago

PLS HELP !!!

alisha [4.7K]

Step-by-step explanation:

I guess we only need to add 2 hours and 38 minutes to the depart times to get arrival, and deduct 2 hours and 38 minutes from arrival to get departure.

a) 05 00 -> 07 38

b) 07 20 -> 09 58

c) 08 40 -> 11 18

d) 10 58 -> 13 36

e) 15 45 -> 18 23

f) 18 22 -> 21 00

g) 18 39 -> 21 17

h) 20 47 -> 23 25

4 0

2 years ago