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densk [106]
2 years ago
13

WILL GIVE LOTS OF POINTS, PLEASE HELP !!!!

Mathematics
1 answer:
Dima020 [189]2 years ago
7 0

Answer:

Terminal side in 2nd Quadrant

Only sin(x) & cosec(x) are positive in 2nd Quadrant

\sin( x )  =  \frac{5}{13}  \\

Perpendicular=5

Base=√(13²-5²)=√(169-25)=√144=√12²=12

Hypotenuse=13

\cos(x)= -  \frac{12}{13}  \\ \tan(x)  =  -  \frac{5}{12}  \\  \cosec(x)  =  \frac{13}{5}  \\  \sec(x)= - \frac{13}{12}  \\\cot(x) =  -  \frac{12}{5}

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What fraction has a numerator 8 and is equivalent to 1/2<br><br> 4/8<br> 8/16<br> 8/12 or 8/9
tangare [24]

Answer:

8/16

Step-by-step explanation:

(8÷8)=1 / (16÷8)=2 = 1/2

8 0
3 years ago
(Translate each sentence into a formula)
Brilliant_brown [7]

Answer:

A=πr2

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3 years ago
A volleyball reaches its maximum of 13 feet, 3 seconds after it is served. What quadratic formula could model the height of the
Katena32 [7]

Answer:

H=-(t-3)^2+13

Step-by-step explanation:

The path covered by the volleyball will be a downward parabola with the vertex being the highest point of the ball.

A general form of a downward parabola is given as:

y=-a(x-h)^2+k

Where (h,k) is the vertex of the parabola and 'a' is a constant.

Now, let 'h' be the vertical height and 't' be the time taken.

So, the equation would be of the form:

H=-a(t-h)^2+k

Now, as per question:

h = 2 seconds, k = 13 feet.

H=-a(t-3)^2+13

Now, taking a = 1. So, the formula that can be used is:

H=-(t-3)^2+13

7 0
3 years ago
What is the area of this figure?<br><br><br> 28 yd²<br><br> 40 yd²<br><br> 52 yd²<br><br> 64 yd²
Lubov Fominskaja [6]

Answer:  A= s^2 <- for a square

A= 1/2*b*h <- for a triangle

A= 4^2= 16

A= 1/2*8*6 (The whole height is 8 yd)

A= 1/2*48

A= 24

24+16= 40 yd^2

"B" is the answer.

I hope this helps!

Step-by-step explanation: A= s^2 <- for a square

A= 1/2*b*h <- for a triangle

A= 4^2= 16

A= 1/2*8*6 (The whole height is 8 yd)

A= 1/2*48

A= 24

24+16= 40 yd^2

"B" is the answer.

I hope this helps!

6 0
3 years ago
If f(t)=3t^2+11 find f(7)
tamaranim1 [39]

Answer:

f(7) = 158

Step-by-step explanation:

To evaluate f(7) substitute t = 7 into f(t)

f(7) = 3(7)² + 11 = (3 × 49) + 11 = 147 + 11 = 158

6 0
3 years ago
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