Answer is squareroot of 21 or 4.58 in decimal
by pythagorean theorem
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7.8 = 0.65x
x = 100/65 * 78/10
x = 10/5 * 6
x = 12
<span>Sasha
drove from her house to the grocery store in 20 minutes.
Her return trip took 15 minutes. IF the store is 7 miles from here house.
Find Sasha’s average speed for her round trip in miles per hour.
=> 20 minutes + 15 minutes = 35 minutes
=> 35 minutes is the time of her travel.
=> 7 miles is the distance.
We need to solve for the average speed.
Formula = Speed = distance / time
=> 7 / 35
=> 0.2
thus, her speed is 0.2 miles per minute (.2miles/min)
</span>
Answer:
Step-by-step explanation:
Use the pythagorean theorem to find z first.
a = 12
b = 6
c = z
z is greater than a and b