Answer:
dA/dt = 31 in²/ sec
Step-by-step explanation:
The area of the triangle is:
A(t) = (1/2)*b*h where b is the base and h the height
Differentiation on both sides of the equation we obtain
dA/dt = (1/2)* db/dt * h + (1/2)* dh/dt * b (1)
db/dt = 3 in/sec
dh/dt = 2 n/sec
b = 10 in
h = 14 in
By substitution in (1)
dA/dt = 0,5* 3*14 + 0,5* 2*10
dA/dt = 21 in² /sec + 10 in²/sc
dA/dt = 31 in²/ sec
You were on the right track.
(17/4)*(11/4)*(3/1)
first multiply the numerators
17*11*3 = 561
561 / ?
next multiply the denominators
4*4*1 = 16
561 / 16 = 35.0625 = 35 1/16
Answer:
16.27778 m/s
97666.6667 cm/min
Step-by-step explanation:
<u>a. To convert km/hr into m/sec, multiply the number by 5 and then divide it by 18.</u>
m/s = (58.6 * 5) /18 = 16.27778 m/s
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<u>b. 1 Kilometer/Hour = 1666.66666666667 Centimeter/Minute</u>
so 58.6 * 1666.666 =97666.6667 cm/min
Answer:
i think its c
Step-by-step explanation:
