Set sin x to a variable, i.e. u
u^2-u-2/u-2.
Factor:
(u-2)(u+1)/(u-2)
Simplify by canceling the u-2s...
leaving u+1. Since we substituted u for sin x...
the answer is A. sin x + 1
Answer:
17,576,000
Step-by-step explanation:
3 digits followed by 3 letters
Draw an underline character for each position with multiplication signs in between them.
_ × _ × _ × _ × _ × _
Now fill in each blank with the number of characters that can be used in that position. The first three blanks are used with digits, 0 through 9. There are 10 digits 0 through 9.
10 × 10 × 10 × _ × _ × _
For the last three blanks, each one gets a letter from A through Z. There are 26 letters to choose from fore each of the last three blanks.
10 × 10 × 10 × 26 × 26 × 26 = 17,576,000
I would say x=30 y=90
because
(y+x)
90+30=120
(y-x)
90-30=60
the sum of those 2 angles should equal 180 because they are supplementary angle.
120+60=180
and because the angles of 2x and y+x are also supplementary they should equal 180
2x
2(30)
=60
(y+x)
90+30
=120
120+60=180
Answer:
Step-by-step explanation:
4x-4y -2z = 6 ( first equation x2)
4x+ 5y-2z =-3 ( If you substract these two)
-9y= 9 so y= -1
2x-z =1 (multiple by 3 ) then 6x-3z=3
3x-3z= -3
3x=6 x=2 and z=3
The answer is x=2, y=-1 and z= 3
To eliminate the fraction, multiply by 2 both sides of the equation. This gives,
2A = h x (b1 + b2)
Then, divide both the left hand and the right hand side of the equation by the variable h.
2A / h = b1 + b2
Next, subtract b1 from both sides,
(2A / h) - b1 = b2
Rearranging the equation,
b2 = (2A/h) - b1