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
Eva8 [605]
3 years ago
11

10 points

Mathematics
1 answer:
natulia [17]3 years ago
4 0
The answer would be B
You might be interested in
Please help!! This is so confusing! 100 points!!
masya89 [10]

Answer:

The value of the expression given is:

  • 4

Step-by-step explanation:

First, you must divide the expression in three, and to the final, you can multiply it:

  1. [(3^8)*(2^(-5))*(9^0)]^(-2)
  2. [(2^(-2))/(3^3)]^4
  3. 3^28

Now, we can solve each part one by one:

<em>First part. </em>

  • 3^8 = 6561
  • 2^(-5) = 0.03125
  • 9^0 = 1 (Whatever number elevated to 0, its value is 1)
  • (6561 * 0,03125 * 1) = 205.03125

And we elevate this to -2:

  • 205.03125^-2 = 2<u>.378810688*10^(-5)</u> or <u>0.00002378810688 </u>

<em>Second part. </em>

  • 2^(-2) = 0.25
  • 3^3 = 27
  • 0.25 / 27 = 9.259259259 * 10^(-3) or 0.00925925925925

And we elevate this to 4:

  • 0.00925925925925^4 = <u>7.350298528 * 10^(-9)</u> or <u>0.000000007350298528 </u>

<em>Third Part. </em>

  • 3^28 = <u>2.287679245 * 10^13</u> or <u>22876792450000</u>

At last, we multiply all the results obtained:

  • 0.00002378810688 * 0.000000007350298528 * 22876792450000 = <u>3.999999999999999999</u> approximately <u>4</u>

<u><em>We approximate the value because the difference to 4 is minimal, which could be obtained if we use all the decimals in each result</em></u>.

3 0
3 years ago
Read 2 more answers
A human heart beats an average of 80 beats per minute.How many beats is this in an hour?express your answer in scientific notati
nlexa [21]

Answer:

4,800

Step-by-step explanation:

Sorry I don't know how to explain it scientifically but I know how to do the calculations

1) Theres 60 minutes in an hour

2) 80x60= 4,800 beats

4 0
3 years ago
1.In a class of 45 pupils ,21play chess and 23 play cards and 5play both games
Mumz [18]

Step-by-step explanation:

(a)

ii.

21 - 5 = 16 play only chess.

iii.

23 - 5 = 18 play only cards

5 play both.

that is 16+18+5 = 39 that play at least one of these games.

i.

so, 45 - 39 = 6 don't play any of these games.

(b)

we have 16+18 = 34 pupils out of 45 that play exactly one game.

so the probabilty to pick one of them is as usual

desired cases / total cases = 34/45 =

= 0.755555555... ≈ 0.76

8 0
2 years ago
Arithmetic, geometric, or neither 16,21,26,31...
SVETLANKA909090 [29]

Answer:

Arithmetic

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is the equation of this graphed line
Bas_tet [7]

Answer:

y= -1x+7

Step-by-step explanation:

I believe this is the correct answer. The graph starts at 7 which is the y-intercept. And starts declining my -1

8 0
3 years ago
Read 2 more answers
Other questions:
  • Find inequality x^4-13x^2 36&gt;0
    6·1 answer
  • Ana Maria’s heart beats 225 times in 3 minutes. How many times does her heart beat per minute?
    6·1 answer
  • Help me plzzzzzzzzzzz
    14·1 answer
  • 6. Courtney bought a shirt for $24 with a
    5·1 answer
  • Marshall has 3 bags in each of his 2 toy chests. Each bag has 5 marbles. How many
    5·2 answers
  • Lol i’m so sorry for spamming im just dumb. y=?x+?
    15·1 answer
  • Only add an answer if you KNOW it's correct!
    5·1 answer
  • Suzy Little was just 3 years old when Uncle Beanie opened an account. He deposited $25, compounded daily. When she was 18 and of
    12·1 answer
  • Determine the equation of the circle with radius 99 and center (-1,-8)(−1,−8).
    15·1 answer
  • The staff at Tiny Little Cherubs day care center observed the eating habits of their 64 students during several
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!