Answer:
complicated process just think and do the math If I was helpful pls be thnked
Step-by-step explanation:
125 - 5x² = 0 when x = 5 sin θ
⇒ 125 - 5(5 sinθ)²
⇒ 125 - 5(25 sin²θ)
⇒ 125 - 125 sin²θ
⇒ 125(1 - sin²θ)
⇒ 125(1 - sinθ)(1 + sinθ) <em>This is simplified</em>
<em>Solving for θ:</em>
⇒ (1 - sinθ)(1 + sinθ) = 0
⇒ (1 - sinθ) = 0 (1 + sinθ) = 0
⇒ sinθ = 0 sinθ = -1
θ = 0° θ = 180°
Since neither value satisifies 0° < θ < 90° there is no solution
0.63, 69%, 0.72 is the correct order
Answer:
I can't see all of 3 but I can help with 5!!!
-2>-5
-1<4
-3>-10
-5<1
Step-by-step explanation:
for the negative ones, if they are both negative, the larger number is smaller than the other number. -5 is smaller than -2. for the other ones, positive numbers are larger than negative numbers.
Answer:
6 hours.
Step-by-step explanation:
The formula sort of has to be invented.
Al
rate = 1 shed / 2 hours
Tom
rate = 1 shed / x hours.
Together.
rate = 1 shed / 1.5 hours.
Equation
1 shed / 2 hours + 1 shed / x hours = 1 shed / 1.5 hours.
1/2 + 1/x = 1/1.5 Put the fractions over a common denominator.
(x + 2) / 2x = 1 / 1.5 Cross Multiply
1.5(x + 2) = 2x Remove the Brackets.
1.5x + 3 = 2x Subtract 1.5x from both sides
3 = 2x - 1.5x
3 = 0.5x Multiply both sides by 2
6 = x
It would take Al 6 hours to do the shed on his own.