2 years ago

HELP ME!! whats the answer? no goofing around pleaze

Mathematics

1 answer:

valentinak56 [21]2 years ago

6 0

Answer: A

Step-by-step explanation:

$\frac{6.3\cdot \:10^8}{9\cdot \:10^2}$

$=\frac{6.3\cdot \:10^6}{9}$ --> Exponent rule for division, 10^8/10^2 = 10^6

= 700,000 --> In scientific notation, 7.0×10^5

You might be interested in

The bus from Karen's house to school runs 26 to 75 minutes of the bus runs on Monday at 7:05am at which time could the bus run n

Citrus2011 [14]

I’m pretty sure the answer is 8:25 a.m

8 0

3 years ago

A typical running track is an oval with 74-m-diameter half circles at each end. a runner going once around the track covers a di

denpristay [2]

Answer:

Her centripetal acceleration during the turn at each end of the track is $0.432\, \frac{m}{s^{2}}$

Step-by-step explanation:

Total distance covered in one round , D= 400 m

Time taken to cover one round , T = 1 min 40 s = 100 sec

Speed of runner , $V=\frac{D}{T}=\frac{400}{100}\, \frac{m}{s}= 4.0\, \frac{m}{s}$

Now centripetal acceleration is given by

$a_c=\frac{V^{2}}{R}$

where $V= 4.0\frac{m}{s}$

$Radius, R= \frac{Diameter}{2}=\frac{74}{2}m=37\, m$

$\therefore a_c=\frac{4^{2}}{37}\, \frac{m}{s^{2}}=0.432\, \frac{m}{s^{2}}$

Thus her centripetal acceleration during the turn at each end of the track is $0.432\, \frac{m}{s^{2}}$

4 0

4 years ago

Read 2 more answers

Ken said that he is going to reduce the number of calories that he eats during the day. Ken's trainer asked him to start off sma

abruzzese [7]

2.200 or 2,200????????????

4 0

3 years ago

Write 4.4354 correct to 2 decimal places

Andreyy89

4.4354 rounded to 2 decimal places is 4.44

6 0

3 years ago

What is the square root of 2

Aliun [14]

Answer: is 1.41421 hope this helps :)

6 0

3 years ago

Read 2 more answers