Answer:
37,500 m
Step-by-step explanation:
Given Usain bolt traveled 100m in 0.160 minutes
recall that
speed = distance travelled ÷ time taken
hence Usain Bolt's speed
= 100 m ÷ 0.160 min
= 625 meters per min
Now given that a car travels at the same speed for one hour.
recall 1 hour = 60 minutes.
Using the same formula as above
speed = distance traveled ÷ time taken
rearranging, we get
distance traveled = speed x time taken
we calculated the speed previously to be 625 m/min and we are given a time of 1 hour (i.e 60 min)
hence
distance traveled = speed x time taken
distance traveled = 625 m/min x 60 min = 37,500 m
9514 1404 393
Answer:
(a) x^2/16 +y^2/9 = 1
Step-by-step explanation:
The form for the equation of an ellipse centered at the origin is ...
(x/(semi-x-axis))^2 +(y/(semi-y-axis))^2 = 1
The vertex values tell you the semi-x-axis is 4 units, and the semi-y-axis is 3 units. Then you have ...
(x/4)^2 +(y/3)^2 = 1
x^2/16 +y^2/9 = 1
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In case you don't remember that form, you can try any of the points in the equations. The equation that works will quickly become apparent.
Answer:
-9x +6
Step-by-step explanation:
The usual statement of the distributive property tells you how this works:
a(b + c) = ab + ac
-1(9x -6) = (-1)(9x) +(-1)(-6) = -9x +6
Answer:
x = 2.25 y = 0.75
Step-by-step explanation:
2x = 9.5- 5
2x = 4.5
x = 4.5 ÷ 2
x = 2.25
know we now what is x so in the second one we evaluate x
3(2.25) + 5y = 10.5
6.75 + 5y = 10.5
5y = 10.5- 6.75
5y = 3.75
y = 3.75 ÷ 5
y = 0.75
that's it !
if you want to check your answer you can evaluate x and y so it will be like
2×2.25 + 5
= 4.5 + 5 = 9.5
and
3× 2.25 +5×0.75
= 6.75 + 3.75 = 10.5
Answer: First, Third and Fourth options are correct.
Step-by-step explanation:
As we know that Rational numbers are those numbers which can be positive integers, negative integers and can be written in the form of p/q i.e. in fractions.
So, it is true for positive integers
It is true for negative integers.
It is true for fractions.
Hence, First, Third and Fourth options are correct.