Answer:
x = 70.53 degrees
Step-by-step explanation:
equation:
cos-1 = 
⇒ cos-1 x = 
⇒ cos-1 x = 0.33
⇒ x = 70.528
round to the nearest tenth:
⇒ 70.53
Answer:
A. x=3
Step-by-step explanation:
Solve for x:
4x+10+3x=40-3x
7x+10=40-3x
+3x +3x
10x+10=40
-10 -10
10x=30
/10 /10
x=3
Answer:
sqrt(1/2x+6) = h^-1 (x)
Step-by-step explanation:
To find the inverse, we exchange x and y and then solve for y
y = 2x^2 -12
Exchange x and y
x = 2y^2 -12
Solve of y
Add 12 to each side
x+12 = 2y^2
Divide by 2
(x+12) /2 = 2y^2/2
(x+12)/2 =y^2
1/2 x+6 = y^2
Take the square root of each side
sqrt(1/2x+6) = sqrt(y^2)
sqrt(1/2x+6) = y
This is the inverse
Answer:
x=2
Step-by-step explanation:
x^2+10x+24=0
12x=24=0
12x=24
x=2
My math is rusty so this may not be the right answer.
Answer:
3.6 * 10^-4
Step-by-step explanation:
36000x10^-8
The number must be between 1 and 10
36000.
Move the decimal 4 places to the left, so add 4 to the exponent
3.6 * 10^(-8+4)
3.6 * 10^-4
