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Orlov [11]
3 years ago
8

Which of the following could be the side lengths of a right triangle

Mathematics
1 answer:
arsen [322]3 years ago
8 0
The answer is A. Hope this helps 
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For f (x) = 4x +1 and g(x) = x2 - 5, find (1-3)(x).
tamaranim1 [39]
F(x)= 4(1-3)+1
4(-2)+1
-8+1
-7


G(x)=(1-3)^2-5
-2^2-5
4-5
-1
3 0
3 years ago
Sin5A/SinA-cos5A/cosA=4cos2A​
irina1246 [14]

Answer:

See Explanation

Step-by-step explanation:

\frac{ \sin5A}{\sin A}  -  \frac{ \cos5A}{\cos A}  = 4\cos2A \\  \\ LHS = \frac{ \sin5A}{\sin A}  -  \frac{ \cos5A}{\cos A}   \\  \\  =  \frac{ \sin5A \:\cos A -  \cos5A \:  \sin A}{\sin A \:\cos A }  \\  \\  =  \frac{ \sin(5A -A )}{\sin A \:\cos A}  \\  \\ =  \frac{ \sin 4A}{\sin A \:\cos A}  \\  \\ =  \frac{ 2\sin 2A \: \cos 2A}{\sin A \:\cos A}  \\  \\ =  \frac{ 2 \times 2\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A}  \\  \\ =  \frac{ 4\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A}  \\  \\ =4\cos 2A \\  \\  = RHS \\  \\ thus \\  \\  \frac{ \sin5A}{\sin A}  -  \frac{ \cos5A}{\cos A}  = 4\cos2A \\  \\ hence \: proved

5 0
3 years ago
When the quotient of a long division problem has a remainder, it means the
Makovka662 [10]
( divisor / dividend ) does not go into the same Evenly
5 0
3 years ago
Solve by inspection: X+4=15
amid [387]

x + 4 = 15

- 4        -4

x = 11

You would subtract 4 because you need to isolate the x to get the value of x. You would subtract it to both sides because whatever you do on one side, you have to do it to the other side.

7 0
3 years ago
Read 2 more answers
Solve for pizza in the pie chart!
solniwko [45]

Answer:

24

Step-by-step explanation:

30% of the pie chart is pizza. 30% of 80 = 0.3 * 80 = 24

6 0
2 years ago
Read 2 more answers
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