Use scientific notation to find the product of 20.5 × 10^7 and 0.000036."

Answers

Answer 1

Answer: You can express 0.000036 as 3.6 × 10^-5 (we move the decimal 5 places left)

Then we find 3.6 × 10^-5 × 20.5 × 10^7
The exponents add to become just 10^2.
3.6 × 20.5 = 73.8

73.8 × 10^2 is our answer...
In proper scientific notation, this is 7.38 × 10^3. (the left # should be <10)
In standard notation, this is 7380. (we move the decimal 3 places right)

Answer 2

Answer:

With RedRicin's Explantion, the formula gets simplified to 7.38 x 10^3

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Barb is making a bead necklace.She strings 1 white bead,then 3 blue beads,then 1 white bead,and so on.Write the numbers for the first eight beads that are white.What is the rule for the pattern?

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1 then 3 1 then three so 1+3+1+3+1+3+1+3

What is the smallest number that increases by 12 when it is flipped and turned upside down?Good luck! First Correct answer get brainliest!

Answers

Answer:

Step-by-step explanation:

Sybrina jogged 2 miles in 30 minutes. At this rate, how far would she jog in 90 minutes?At what rate did she jog each hour?

Answers

6 miles in 90 minutes and 4 miles per hour. 30 times two is 60 min so 2 miles times two is 4 miles.

another 30 min is 90 min and another two miles is 6 miles.

2miles per 30min - 2 to 3
90/30=3x2=6
6miles in 90min
She was jogging @ a 1mile per 15min but each hour it was 4mile per hour

The colors in a ballon bouquet are 3/10 green, 2/10 yellow, and 5/10 red. What fraction of the ballon bouquet is red or yellow?

Answers

You have to add the top numbers but keep the bottom number the same.

2/10 + 5/10 = 7/10

2/10 + 5/10 = 7/10
The fraction of the balloon bouquet is red or yellow is 7/10

Stacey worked on her garden for 4 3/4 hours. Josh worked on his garden 2/3 times as long as Stacey. Vicki worked on her garden 1 3/8 times as long as Stacey. Select all statements that are true A. Stacey worked longer on her garden than Josh worked on his garden.
B.Stacey spent less time working on her garden than Vicki spent on her garden.
C. Josh worked longer than Vicki worked on her garden.
D. Vicki worked longer on her garden than Stacey & Josh combined.

Answers

so basically since josh worked a fraction (that's less than 1) of staceys time then therefor stacy's tme is more than josh
josh<stacy
vicki worked a fraction(that's greater than 1) of stacey's time. since it is greater than 1, it makes it more so like 2 times 2 and 1/2=2+1=3 which is greater so
viki worked more than stacy therefor

josh<stacy<vicki
so
A is correct (Stacey>josh)
B is correct (Stacey<Viki)
C is false
D we have to solve by doing
4 and 3/4 convert to fraction improper
4 and 3/4=19/4
19/4 times 2/3=josh=38/12=19/6
viki worked 1 and 3/8 of stacey
19/4 times 1 and 3/8=19/4+57/32=209/32=7.9
josh+stacey=19/4+19/6=95/12=6.5
7.9>6.5 so
D is true

so the answers that are true are
A,B,D

2a is true and 2b is also true and 2c is false 2d is true

Tom is trying to write 3/47 as a decimal.He used long division and divided until he got the number 0.0638297872,at which point he stopped. Since the decimal doesn't seem to terminate or repeat, he concluded that 3/47 is not rational. Do you agree of disagree? Why?

Answers

Disagree. A rational number is any number that can be written as a fraction of two integers. Tom wrote 3/47, and both 3 and 47 are integers. Just because the decimal has not yet terminated doesn’t mean that the number he is looking at is irrational.

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