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Arada [10]
3 years ago
8

If cscx=3, 90 degrees

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
4 0
We are given with 90<x<180 degrees and asks for the value of sin(x/2), cos(x/2) and tan(x/2). We just substitute the maximum and minimum angle to the equations. sin (180/2) is equal to 1 and sin (90/2) is equal to \frac{ \sqrt{2} }{2} to 1. cos (x/2) is equal to 0≤y≤<span>\frac{ \sqrt{2} }{2}. tan (x/2) is equal to 1 to infinity. </span>
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Solve (x +9)2 = 25.
alexandr1967 [171]

Answer:

x =  - 4 \: or \: x =  - 14

Step-by-step explanation:

We have been given the equation

(x + 9) {}^{2}  = 25

and we are asked to apply the square root property of equality to our given a equation and isolate the variable

First, take the square root of both sides of our equation

\sqrt{(x + 9) {}^{2} }  =  \sqrt{25}

x + 9 =  \: 15

x + 9 = 5 \: or \: x + 9 =  - 5

x + 9 - 9 = 5 - 9 \: or \: x + 9 - 9 =  - 5 - 9

x =  - 4 \: or \: x =  - 14

<em>THEREFORE, THERE ARE TWO SOLUTIONS FOR OUR GIVEN EQUATION</em>

<em>x + 9 = 5 \: then \: x =  - 4. \\ x + 9 =  - 5 \: then \: x =  - 14</em>

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3 years ago
Based on the family the graph below belongs to, which equation could represent the graph?
sp2606 [1]

Answer:

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Step-by-step explanation:

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The graph shows the distance, y, in miles, of a moving motorboat from an island for a certain amount of time, x, in hours:
lisabon 2012 [21]

Answer:  The speed of the motorboat is 70 miles per hour

Step-by-step explanation:  Subtract the initial distance, 35, from the distance at any given time, then divide the remainder by the hours.

For example, at 2 hours, the distance shown on the graph is 175 miles

Subtract: 175 -35 = 140.  Then divide 140/2 = 70

At 4 hours, the distance shown is 315 miles.

Subtract: 315 - 35 = 280. Then divide  280/4 = 70

70 mph is the speed.

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3 years ago
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frez [133]
Esmeralda I think it's wrong cuz it’s like the question but that's added a parentheses so I think that's wrong
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3 years ago
-3 1/2 - [-12 1/4]...............................................
nasty-shy [4]

Answer:

8.75

Step-by-step explanation:

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