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irina1246 [14]
3 years ago
15

Triangle PQR is a right triangle. If PQ = 8 , what is RQ?

Mathematics
2 answers:
slavikrds [6]3 years ago
8 0
The answer to this is B
seraphim [82]3 years ago
8 0

Answer:

The value of the RQ is 16 unit .

Option (B) is correct .

Step-by-step explanation:

Now by using the trignometric identity

cos \theta = \frac{Base}{Hypotenuse}

Base = RQ

Hypotenuse = PQ = 8 unit

\theta = 60^{\circ}

cos60^{\circ} = \frac{RQ}{PQ}

cos60^{\circ} = \frac{RQ}{8}

cos\ 60^{\circ} = \frac{1}{2}

\frac{8}{2}=RQ

RQ = 4

     = 4 unit

Therefore the value of the RQ is 4 unit .

Option (B) is correct .

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Anna71 [15]

Answer:

237.5

Step-by-step explanation:

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3 years ago
A social media website had 350,000 followers in 2010. The number y of followers
Zolol [24]

Answer:

a) y(t) = 350(1.02)^t

b) 394 thousand = 394,000 people will be following the website in 2016

Step-by-step explanation:

Exponential equation for an amount:

The exponential equation for an amount after t years has the following format:

y = y(0)(1+r)^t

In which y(0) is the initial value and r is the growth rate, as a decimal.

A social media website had 350,000 followers in 2010. The number y of followers increases by 2% each year.

This means that: y(0) = 350, r = 0.02

a. Write an exponential growth function that represents the number of followers t years after 2010

In thousands:

y(t) = 350(1 + 0.02)^t

y(t) = 350(1.02)^t

b. How many people will be following the website in 2016?

2016 is 6 years after 2010, so this is y(6).

y(6) = 350(1.02)^6 = 394.2

Rounding to the nearest thousand:

394 thousand = 394,000 people will be following the website in 2016

5 0
3 years ago
Please answer correctly !!!!! Will mark brainliest answer !!!!!!!!!!
AnnZ [28]

Answer:

type 2 in the first box,

13/4 in the second box, and

-9/8 in the third one

Step-by-step explanation:Notice that you are asked to write the following quadratic expression in vertex form, so you need to find the "x" value of the vertex, and then the "y" value of the vertex:

x_{vertex}= -b/2a

Which in our case is: -13/4

and the value of the y for the vertex is obtained using the functional expression when x equals -13/4:

f(-13/4)= -9/8

Then your expression for this quadratic should be:

f(x)=2\,(x+\frac{13}{4} )^2+(-\frac{9}{8})

Then type 2 in the first box, 13/4 in the second box, and -9/8 in the third one

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Check the picture below, that's the "inscribed angle theorem"

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3 years ago
How can I do ratios? I’ve been having a lot of trouble with this in my math class, and really need some help.
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If you have a fraction, take one number and put a different number on top or underneath, for example if you have 2 cats and 3 dogs, the ratio from cats to dogs would be 2:3 but if you did 2 cats to the total number of animals, you would add 2 and 3 and get 5, so the ratio would be 2:5.

6 0
3 years ago
Read 2 more answers
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