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grin007 [14]
3 years ago
11

Find the value of the function sin 9pi/7?

Mathematics
1 answer:
Effectus [21]3 years ago
5 0
In decimal form is 4.03919055 it’s long but that’s the answer in decimal tell me in what I need it
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The measure of two complementary angles are in the ratio 1 : 4. What are the degree measures of the two angles?
AlladinOne [14]
Since the angles are complementary, they add to 90°. So we can write the equation:
x represents the first angle, and 4x represents the second
x+4x=90
5x=90
x=18 

So the first angle is 18° and the second is 72° (18*4)

Hope this helps
6 0
3 years ago
A plane intersects a triangular prism vertically as shown. Describe the cross-section shown here. A) pentagon B) rectangle C) tr
olga_2 [115]
The correct answer is c, but im not sure
3 0
3 years ago
Read 2 more answers
Your credit limit is $2,500 what is the max you should ever owe on this card?
lions [1.4K]

Answer: $2,000

To calculate the max amount you should owe, multiply the credit limit by 80%. $2,500 * 80% = 2,000

5 0
3 years ago
Can i please get the answer to number 6 ?
IrinaVladis [17]
A full circle in radians is 2π, and in degrees it's 360°. I want to convert the 72° to radians:

72° in radians = 72/360 * 2π = 2/5π

The circumference of a full circle is the number of radians times the radius. (ie., 2πr), so the JK part of the circle is:

5* 2/5π simplifies to 2π
6 0
3 years ago
Hello, could you please explain this to me?
Viefleur [7K]

Find the value of r(q(4)), so first you need to find the value of q(4).

q(4), this means that x = 4, so substitute/plug it into the equation to find the value of q(x) when x = 4:

q(x) = -2x - 1      Plug in 4 into "x" since x = 4

q(4) = -2(4) - 1

q(4) = -8 - 1

q(4) = -9        

Now that you know the value of q(4), you can find the value of r(x) when x = q(4)

r(x) = 2x² + 1

r(q(4)) = 2(q(4))² + 1      Plug in -9 into "q(4)" since q(4) = -9

r(q(4)) = 2(-9)² + 1

r(q(4)) = 2(81) + 1

r(q(4)) = 163           163 is the value of r(q(4))

5 0
3 years ago
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