Answer:
C and D give rational numbers, as the square root of 49 is ±7 and the square root of 100 is ±10.
Answer:
it will take them 3.6 hours if their speed is increased
Step-by-step explanation:
First of all, we will need to find the total distance the Geradi family will be travelling. This is a better way to start, as the distance is constant regardless of their change in velocity.
Distance travelled = speed of travel X time taken = 45 X 4 = 180 miles per hour.
If the Geradi family increases their speed to 50 miles per hour, their new time will be got by dividing the total distance travelled by this new speed.
New travel time = 180 miles / 50 miles per hour = 3.6 hours
There is only one square root of any number that has one. The square of 196 is 14 because 14 x 14 = 196.
Answer:
Step-by-step explanation:
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