Answer: The rocket will reach its max after 4 seconds
Step-by-step explanation:
Hi, to find the maximum height, we have to set the first derivative of the equation equal to zero.
y=-16x^2+128x+136
0 = (2)-16x +128
0= -32x+128
Solving for x:
32x = 128
x = 128/32
x = 4 seconds
The rocket will reach its max after 4 seconds
Feel free to ask for more if needed or if you did not understand something.
How many words did she type in 5 minutes ?
65x5 - 4 = 325 - 4 = 321 words
Ratio of boys to girls= 17:3
number of people= 740
to find the number of boys out of 740 people, you have to add the ratio together and divide 740 by it. then multiply the answer by 17 because the ratio for boys is 17.
17+3=20
740÷20=37
37×17=629
answer= 629
hope this helps....
Answer:
The ratio of smaller rectangle to larger is 1 : 8.
Step-by-step explanation:
Given that:
Area of smaller rectangle = 25 square feet
Area of larger rectangle = 200 square feet
Ratio of areas of these similar rectangles;
Smaller rectangle : Larger rectangle
25 : 200
1 : 8
Hence,
The ratio of smaller rectangle to larger is 1 : 8.
