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Komok [63]
3 years ago
15

(8.4 times 10 to the 2 power)(2.5 times 10 to the 6 power)

Mathematics
2 answers:
BlackZzzverrR [31]3 years ago
6 0
(8.4 * 10^2) (2.5 * 10^6)
associative property -> we can multiply these in whichever order we want
8.4 * 2.5 * 10^2 * 10^6
21 * 10^8
if your instructions said to put the answers in scientific notation, however, we are not done here
21 * 10^8
2.1 * 10 * 10^8
2.1 * 10^9

Lelu [443]3 years ago
4 0
8.4*10^2*2.5*10^6\to\boxed{21*10^8}
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Robert is traveling to Mexico for a family vacation. He is bringing 625 U.S. dollars with him. Robert needs to exchange his mone
Evgesh-ka [11]

Robert should get D. 8281.25 pesos in exchange.

Explanation:

  • Robert is bringing 625 U.S. dollars with him to Mexico. He needs to exchange the money he has with him to Mexico's currency i.e. from U.S. dollars to Mexican pesos.
  • The exchange rate is 13.25 Mexican pesos for each U.S. dollar. So                               1 U.S. dollar = 13.25 Mexican pesos.
  • So to calculate how much 625 U.S. dollars is in pesos we multiply 625 with the exchange rate i.e. 13.25 pesos                                                        625 U.S dollars = 625 × 13.25 = 8281.25 Mexican pesos.

7 0
3 years ago
Susan is on vacation at a tropical bay that has three islands. She rents a boat on Island A and plans to navigate to Island C, w
Sauron [17]

She should navigate at 45° 34' 22.7856" to go to Island C.

Given that Susan is on vacation at a tropical bay that has three islands, and she rents a boat on Island A and plans to navigate to Island C, which is 8 miles away, to determine, based on the figure below, at what angle should she navigate to go to Island C, the following calculation must be carried out, applying the cosine law:

  • 11^2 = 8^2 + 15^2 - (2 x 8 x 15) x cos A
  • Cos A = (8^2 + 15^2 - 11^2) / (2x8x15)
  • A = arc cos (8^2 + 15^2 - 11^2) / (2x8x15)
  • A = arc cos (64 + 225 - 121) / 240
  • A = arc cos (168 / 240)
  • A = arc cos 0.7
  • A = 45.572996

Therefore, she should navigate at 45° 34' 22.7856" to go to Island C.

Learn more in brainly.com/question/24077856

5 0
2 years ago
Need help with my hw PLZZZ
inessss [21]

Answer:

D

Step-by-step explanation:

Just substitute your point (1,0) to each equation given.

I'll first substitute it into D

y=3(x-1)

0=3(1-1)

0=3(0)

0=0

The answer is D

5 0
3 years ago
When multiplying two numbers that are written in scientific notation what do you do with the exponents of the 10
lisabon 2012 [21]
You multiply the exponents of the 10
6 0
3 years ago
Please help me :(<br> Classify each figure as a polyhedron or not a polyhedron. Then name the figure
alexgriva [62]

Answer:

its a semiregular polyhedron and it is an octagonal prism

Step-by-step explanation:

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7 0
3 years ago
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