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3 years ago

Use trigonometric identities to transform the left side of the equation to the right side

2 answers:

6 0

$tan\theta=\frac{sin\theta}{cos\theta}\\\\cot\theta=\frac{cos\theta}{sin\theta}\\\\tan\theta cot\theta=1\\\\L=\frac{sin\theta}{cos\theta}\times\frac{cos\theta}{sin\theta}=\frac{sin\theta cos\theta}{sin\theta cos\theta}=1=R$

yawa3891 [41]3 years ago

6 0

Tan = sin/cos

Cot = cos/sin

(tan) x (cot) = (sin/cos) x (cos/sin) = 1

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Circle the letters of the parallel lines.

Lera25 [3.4K]

Answer: Choice B and choice D

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Parallel lines have equal slopes. Each answer choice is in the form y = mx+b which is slope intercept form. For choices B and D, we see the slope is m = 2/3. This is why these lines are parallel. The other choices have different slopes (m = -2/3 for choice A; m = 3/2 for choice C)

4 0

3 years ago

PLLLLSSS HELP ME ASAP!

erastovalidia [21]

The answer to the first one is ' D '.
(All the angles inside a triangle have to add up to exactly 180 degrees.)

The answer to the second one is ' C ' .
(If two sides are equal, then the sides opposite them are also equal.)

3 0

3 years ago

Suppose the life span of a calculator has a normal distribution with a mean of 60 months and a standard deviation of 8 months. W

rusak2 [61]

Answer:

Probability that the calculator works properly for 74 months or more is 0.04 or 4%.

Step-by-step explanation:

We are given that the life span of a calculator has a normal distribution with a mean of 60 months and a standard deviation of 8 months.

Firstly, Let X = life span of a calculator

The z score probability distribution for is given by;

Z = $\frac{ X - \mu}{\sigma}$ ~ N(0,1)

where, $\mu$ = population mean = 60 months

$\sigma$ = standard deviation = 8 months

Probability that the calculator works properly for 74 months or more is given by = P(X $\geq$ 74 months)

P(X $\geq$ 74) = P( $\frac{ X - \mu}{\sigma}$ $\geq$ $\frac{74-60}{8}$ ) = P(Z $\geq$ 1.75) = 1 - P(Z < 1.75)

= 1 - 0.95994 = 0.04

Therefore, probability that the calculator works properly for 74 months or more is 0.04 or 4%.

7 0

3 years ago

Maria, an experienced shipping clerk, can fill a certain order in 11 hours. Felipe, a new clerk, needs 13 hours to do the

ch4aika [34]

Answer:Maria rate = 1/13 job/hr

-----

Felipe rate = 1/16 job/hr

----

Together rate = 1/x job/h

Step-by-step explanation: rate + rate = Together rate

1/13 + 1/16 = 1/x

----

16x + 13x = 13*16

------

29x = 13*16

x = 7.17 hrs = 7 hr 10 min 12 seconds (time to do the job together)

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Cheers,

Rubberduck100000.

8 0

3 years ago

A basketball team has 10 players. Before each game, the coach picks 2 of those players to carry the team's

labwork [276]

The different group of 2 players that the coach can pick is 45 groups.

<h3>Selection of groups</h3>

The selection of groups of 2 player can be done using the method of combination.

<h3>Different groups of 2 players</h3>

The different group of 2 players that the coach can pick from the 10 players is calculated as follows;

n = 10C2

$n = \frac{10!}{(10-2)! 2!} = \frac{10 \times 9\times 8!}{8! \times 2} = 45$

Thus, the different group of 2 players that the coach can pick is 45 groups.

Learn more about combinations here: brainly.com/question/25821700

6 0

2 years ago