Answer:
The change in height is 6/10 miles per hour and the entire descent will last 150 minutes (2 hours and 30 minutes)
Step-by-step explanation:
The gilder started 1 1/2 miles above the ground, in other words, it started miles above the ground. After 60 minutes it is now miles above the ground.
Therefore, the change in height in one hour is: miles.
Now, we know that the glide descends at a rate of 6/10 miles per hour, we can solve the second part of the problem using the rule of three (or proportions)
<em>If it takes it 60 minutes to descend 6/10 miles, how long it will take it to descend 15/10 miles?</em>
60 minutes --- 6/10= .6
x minutes ---- 15/10= 1.5
Therefore minutes
Thus, the entire descent will last 150 minutes.
Answer:
1)(0.75,55)
2)(1.5,28)
3)(2,0)
(2.25,-17)
(3,-80)
(4,-192)
Step-by-step explanation:
1) substitute "t" values in table into the equation:
64-16(0.75)^2=
55
64-16(1.5)^2=
28
64-16(2)^2=
0
64-16(2.25)^2=
-17(ball already reached ground and went underground)
64-16(3)^2=
-80
64-16(4)^2=
-192
Step 1:
First, let's order the number from least to greatest.
A. -0.31
B. -0.33
C. -0.38
D. -0.29
We could see that A, B, and C's numbers are already from least to greatest, so all we have to do is to move -0.29 (D) up to the top, since -0.29 is the number with the lowest value.
C. -0.38
B. -0.33
A. -0.31
D. -0.29
Step 2:
Let's look at the four number lines. Remember that we already organized the numbers from least to greatest, so the order they go in on the number line is: C, B, A, and D. Since Line C and D Don't follow that rule, we know those are not our answers. Also on line B, C is on the left of -0.4, but C's value is less than -0.4, so B is wrong. We are left with line A.
Line A: C. -0.38, B. -0.33, A. -0.31, D. -0.29
Our answer: Line A