For first question, you can let t=1.5 and calculate h=140 ft. For second question, we can change the equation to the form of h=-16[(t-2)^2-9]. So you can see from the equation that the maximum height is created when t=2, equals to 144 ft. For question 3, let h=128. From equation, we can get t=3 or t=1. For last question, the rocket hit the lake means h=0, so t=5 or t=-1(not applicable). So the answer is t=5. You can also draw the graphic for the equation to help.
Answer:
whats your question im confused
Step-by-step explanation:
Answer:
x = 16
m<Y = 34°
Step-by-step explanation:
∆XYZ is an isosceles ∆. An isosceles ∆ has two equal sides, as well as the bases of the isosceles triangle are congruent. In this case, therefore:
<X = <Z
(6x - 23)° = (4x + 9)
Solve for x
6x - 23 = 4x + 9
Collect like terms
6x - 4x = 23 + 9
2x = 32
Divide both sides by 2
x = 16
m<Y = 180° - (m<X + m<Z) (sum of ∆)
m<Y = 180 - ((6x - 23) + (4x + 9))
Plug in the value of x
m<Y = 180 - ((6(16) - 23) + (4(16) + 9))
m<Y = 180 - (73 + 73)
m<Y = 34°
Answer:
Terry's yard is greater than Todd's yard by 90 square meters.
Step-by-step explanation:
We are given the following in the question:
Terry's yard dimensions:
Length,l = 18 meters
Width,w = 15 meters
Area of Terry's yard =
Todd's yard dimensions:
Length,l = 20 meters
Width,w = 9 meters
Area of Todd's yard =
Thus, Terry's yard is greater than Todd's yard.
Difference in area of yards
= Terry's yard area - Todd's yard area
Thus, Terry's yard is greater than Todd's yard by 90 square meters.
Answer:
1/2
Step-by-step explanation:
9/10 - 4/10 = (9-4) / 10 = 5/10 = 1/2
