Answer:
100feet
Step-by-step explanation:
Given the height reached by a dolphin expressed by the equation is h = -16t^2 + 80t. At maximum height, the velocity is zero, hence;
v(t) = dh/dt = -32t + 80
0 = -32t + 80
32t = 80
t = 80/32
t = 2.5secs
Substitute t = 2.5 into the height formula h = -16t^2 + 80t
h = -16(2.5)^2 + 80(2.5)
h = -100+200
h = 100feet
Hence the maximum height the dolphin jumps is 100feet
3/2
<em>Step One:</em> 1 3/8, transform the number into a improper fraction:
- To have a mixed number in to a improper fraction, you need to use addition and multiplication. For 1 3/8, We first multiply the denominator (8, also know to be the bottom number of the fraction) to the whole number (1). 8x1= 8
- NOTE: The original denominator (8) will be use for are improper, again playing as the denominator, we only multiply the denominator for the numerator (which is the top number of a fraction).
- After multiplying, we'll add are product with the numerator (3) for the process. 8+3= 12
- Now we have both numerator and denominator for 1 3/8, we can create the improper fraction. 12 as the numerator and 8 as the denominator. 12/8
- We still need to simplify the number. To that, we need the biggest whole number, or rather I call it the lowest number, that can be divide both in 12 and 8.
- 4 can be divide by both number so: 12/4= 3 and 8/4=2
- Now 3 is are simplify numerator and 2 is are simplify denominator.
Answer:
loudness of a jack hammer .004 loudness of a compactor .0025
Step-by-step explanation:
Because edge
Answer - Width 23
Length - 26
W = Width
L + 3 = Length
Perimeter = 2L = 2W
98 = 2(W + 3) + 2W
98 = 2W + 6 + 2W
98 = 4W + 6
92 = 4W
W = 92/4
W = 23
Width is 23 inches
Length is 3 more -- 23 + 3 = 26
We can double check our work:
26 + 26 + 23 + 23 = 98 Inches
Best of luck,
The Artemis Wolf
The answer is A because it has a variable. HOPE THIS HELPS!!! <3
