1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gennadij [26K]
3 years ago
10

Express in scientific notation: 215,000,000    a.2.15x10^8   b.21.5x10^7   c. 215x10^6

Mathematics
1 answer:
DedPeter [7]3 years ago
7 0
2\underbrace{15\ 000\ 000}_{\leftarrow8}=2.15000000\cdot10^8=2.15\cdot10^8\\\\\\Answer:A




scientific\ notation:\ a\cdot10^n\ and\ a\in < 1;\ 10);\ n\in\mathbb{Z}\\\\B.\ 21.5\cdot10^7\to21.5 > 10\\\\C.\ 215\cdot10^6\to215 > 10\\\\D.\ 215\cdot1,000,000\to215 > 10\ and\ no\ 10^n\\\\E.\ 0.215\cdot10^9\to0.215 < 1
You might be interested in
Y^3-27=9y^2-27y how to factor
Kryger [21]
Hello! And thank you for your question!

First we are going to redo the equation:

<span><span><span>y<span><span>​^3</span><span>​​</span></span></span>−3<span>y^<span><span>​2</span><span>​​</span></span></span>(3)+3(y)×<span>3<span><span>​^2</span><span>​​</span></span></span>−<span>3<span><span>​^3</span><span>​​</span></span></span>=0

Then we are going to use Cube of Difference:

0 = (y - 3)^3

That take cube root of both sides:

0 = y - 3

Finally add 3 to both sides:

3 = y

Final Answer:

y = 3</span></span>
4 0
3 years ago
Use the associative property to identify wich expression is equal to (10)(5x)(7).
Fofino [41]
I think the answer is A. (7)(5x)(10)

5 0
2 years ago
Mason has a full bag of chocolate candies. He takes out all 38 of the green ones, which is 20% of the total number of chocolate
marta [7]

Answer:

190

Step-by-step explanation:

20 percent is 1 fifth of 100 percent so 38 would be 1 fifth. so multiply by 5

4 0
2 years ago
Read 2 more answers
Sheep:cows:pigs=12:3:2. There are 150 more sheep than pigs. How many cows has she got?
elena55 [62]
Information Given: She has 12 groups of sheep, 3 groups of cows and 2 groups of pigs. Question asks: There are 150 more sheep than pigs. How many cows has she got?
They figured 150 more sheep than pigs from 2 pigs X 75 sheep=150 lambs of 12 groups of sheep.
150 lambs/3 groups of cows=50 cows.
She has 50 cows from 3 groups of cows.

3 0
3 years ago
Read 2 more answers
X =<br><br> 12<br> 9<br> 6 2/3<br> help me out please you guys are awesome ^-^
vitfil [10]

the answer is x =  6 2/3

ok done. Thank to me :>

4 0
2 years ago
Other questions:
  • When a loan officer speaks to people about a loan for a certain principal, P, at a certain monthly rate, r, they always have to
    9·1 answer
  • *PLEASE ANSWER* (: Find the measure of angle A.
    6·2 answers
  • I need help with some maths homework what is the answer 3(x-3)=0
    10·2 answers
  • The manager of a store marks up all
    11·1 answer
  • Which graph represents y = RootIndex 3 StartRoot x EndRoot + 2?
    8·2 answers
  • Find the ratio in simplest form 2/3 to 3/2
    8·1 answer
  • Determine the coordinates of the y-intercept of the function shown in the graph.
    7·1 answer
  • A die is rolled 200 times with the following results.
    12·1 answer
  • У
    9·1 answer
  • Obtain the length of a ladder leaning against a wall 4.33 m high and forming an angle of 60 ° with respect to the floor of the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!