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Hunter-Best [27]
3 years ago
10

If cos θ = -2/5 and tan θ > 0, what is the value of sin θ? Answer Choices: a) the negative square root of 21 b) the negative

square root of 21 over 5 c) the square root of 21 over 5 d) the square root of 21 over 2
Mathematics
1 answer:
padilas [110]3 years ago
5 0

Answer:

I think it is A

Step-by-step

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I did the test and got this right.

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Mrs. Lenz rented a scooter during her beach vacation. The cost of the scooter rental is shown for different periods of time. Wha
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Answer:

The unit rate of $10 per hour.

Step-by-step explanation:

Given

x = time

y = amount

(x,y) = (1,10)

See attachment for graph

Required

What does the given point represents

From the attachment, the origin of the graph is:

(x_1,y_1) = (0,0)

and we have the given point to be:

(x_2,y_2) = (1,10)

Calculate the slope (m)

m = \frac{y_2 - y_1}{x_2 - x_1}

m = \frac{10-0}{1-0}

m = \frac{10}{1}

m = 10

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Hence:

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8 0
3 years ago
Help! Brainliest, thx!
sashaice [31]
The Y intercept is five
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4 years ago
To be considered as a menu item for Gloria's new restaurant an item must have scored in the top 15% by the food critics in the a
vladimir1956 [14]

Answer:

Lowest score needed=4.92

Step-by-step explanation:

Using the standard normal distribution table we find the value of standard normal deviate corresponding to area of 15%

For area of 15% we have Z= -1.04

Thus we have

Z=\frac{X-\overline{X}}{\sigma }\\\\\therefore X=\sigma Z+\overline{X}\\\\

Applying values we get

X=-1.04\times 2+7\\\\X=4.92

Thus lowest score needed = 4.92

3 0
3 years ago
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