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
Answer: He can buy 5 loaves of bread.
After buying 5 loaves 15 p will be left.
Step-by-step explanation:
Given, In the supermarket a loaf of bread costs 37p .
To find: How many loaves can David buy with a 
coin?
Since 
Then, 
Number of loaves he can buy = (Amount he has) ÷ (Cost of a loaf of bread)
= 200 p ÷ 37 p
i.e. he can buy 5 loaves of bread and 15 p will be left.
Hence, He can buy 5 loaves of bread.
After buying 5 loaves 15 p will be left.
5 of the planets are earth like and 2 are mars like
5 * 2 = 10
<u>1 * 2 = 2</u>
Total 12
4 earth like and 4 mars like
Earth = 4*2 = 8
<u>Mars = 4 * 1 = 4</u>
Total 12
3 Like Earth 6 like mars
Earth 3 * 2 = 6
<u>Mars 6 * 1 = 6</u>
Total 12
Those answers are the only ones possible.
Answer:
First, we compare the given numbers using a place value chart. Since I don't have one of those, we won't be using a guide.
<u>7.92</u>
<u>8.055</u>
<u>7.9</u>
<u>7.98</u>
<u>8.072</u>
<u>8.027</u>
Comparing those, this order is the correct arrangement from least to greatest:
<u>7.9</u>
<u>7.92</u>
<u>7.98</u>
<u>8.027</u>
<u>8.055</u>
<u>8.072</u>
~Hope this helps~
The answer is (-1/2, -3x)
