Answer:
3 * 10^6 if the answer is 3.64 * 10^6, you really ought to argue the meaning of estimate with your instructor.
Step-by-step explanation:
This is a very valuable question. Put your calculator away when you answer it. Using a calculator is sort of cheating.
1.3 * 10^3 roughly is roughly 1 * 10^3
2.8*10^3 hours is roughly 3 * 10^3
Forget the powers for now and just work with the 1 and 3
1*3 equals 3.
10^3 * 10^3 = 10^6 when the base of two numbers is the same (10 in this case) then the powers are added.
10^(3 + 3) = 10^6
So the answer is roughly 3*10^6
Now you can take out your calculator and get the answer.
1.3*10^3 * 2.8 * 10^3 = 3.64 * 10 ^ 6
Notice that the estimate (done in my head) is close enough to tell you what the answer should be. On a test, that's a very handy skill.
The correct answer is 8,5
50 m/s means that the car moves 50 meters in one second.
If you want to know how long it takes to move 425 meters, you just do a rule of three
50 meters ------ 1 second
425 meters--------x seconds
x= 425 x 1 /50
=8,5
Answer:
m∠K = 69°
Step-by-step explanation:
"When two tangents or secants intersect outside the circle, exterior angle formed between the tangents of secants is one half the difference of major and minor arcs"
By this theorem,
m(∠K) = ![\frac{1}{2}[m(\widehat{LBJ}-m(\widehat{LJ})]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%5Bm%28%5Cwidehat%7BLBJ%7D-m%28%5Cwidehat%7BLJ%7D%29%5D)
Here, 
= 249°
= 360° - 249°
= 111°
m∠K = 
= 
= 69°
Therefore, measure of angle K = 69° will be the answer.
The answer is 27
hope this helps :)
