Answer:
a. 22.5 km
b. 267.52 m
c. 95 m
d. 
km
Step-by-step explanation:
a. You can convert from hectometers to kilometers, and then you can make the multiplication:
b. You can convert from centimeters to meters, and then you can make the multiplication:
c. You only need to divide 1,140 meters by 12:
d. You can convert from hectometers to kilometers, from decameters to kilometers and from meters to kilometers, and divide this by 15:
km
Answer:
D. Rectangular prism
Step-by-step explanation:
I believe the answer is D. Rectangular prism
check the picture below
and isosceles triangle, has two equal sides, thus, sides "a" and "b" for the triangle to be an isosceles, have to be equal
Answer:
150 miles
distance travelled on the third day = 150 miles
Step-by-step explanation:
Note: it was given that they drove the same speed throughout the trip. That means their speed is constant for all days;
For the first day
distance = 300 miles
time = 6 hours
Speed = distance/time
Speed = 300/6 = 50 mph
on the third day;
time = 3 hours
Speed = speed on first day = 50 mph
distance = speed × time
distance = 50 mph × 3 hours
distance = 150 miles
distance travelled on the third day = 150 miles
We know that:
is an equation of a circle.
When we substitute x and y (from the pairs we have), we'll get a system of equations:
and all we have to do is solve it for a, b and r.
There will be:
From equations (II) and (III) we have:
and from (I) and (II):
Now we can easly calculate a and b:
Finally we calculate
:
And the equation of the circle is:
