Answer:
Step-by-step explanation:
You can find out BD by using cosine formula which turns out to be 9 cm. Then apply pythagoras theorem on triangle CDA with AD = 5 (14 - 9), to obtain 13 the length of AC. Hence after adding up all the sides perimeter is 42.
Mean because the mean is an average. That gives an overall understanding of what the entire class did.
X>17
add 7 to 10 and you get 17 :)
Answer:
The speed of the truck is 42 mph
Step-by-step explanation:
we know that
The speed is equal to divide the distance by the time
Let
s -----> the speed in miles per hour
d ----> the distance in miles
t ----> the time in hours
step 1
Find out the distance traveled by the car at 7:00 P.M
we have
substitute the values
step 2
Find out the speed of the truck
we know that
At 7:00 P.M the distance is equal to
substitute