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damaskus [11]
3 years ago
13

How is 0.00069 written in scientific notation?

Mathematics
1 answer:
frez [133]3 years ago
6 0
It is written as:

6.9 × 10^{-4}
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Two similar cylinders have a scale factor of 1.6/3. Find the ratio of their volumes. Answer must be in fraction form.
Anna [14]
Volume of cylinders = pi x r^2 x height  Simplifying the ratio: 1.6/3 = 16 / 30 (multiply and divide by 10 to remove the decimal)  Volume Ratio = 512:27
5 0
2 years ago
Hunter started with the following model to show the problem 1.45 : 5. w 3 To complete the division model of 1.45 = 5, how many h
Cloud [144]

Each division set gives the outcome of the operation 1.45 ÷ 5 which is 0.29.

  • The number of hundredths in each division set is <u>D. 9</u>

Reasons:

The given Hunter's model consists of the following

One 10 × 10 number block

Four sets of a column of 10 cubes

Five individual cube pieces

Therefore;

In 1.45, we have;

1 unit

4 tenths

5 hundredths

Which gives;

Each single cube can be used to represent a hundredth in 0.05

One cube = 0.01

Each set of 10 cubes represents a tenth in 0.4

Each block of 10 by 10 can be used to represent the unit; 1

Dividing each of the 10 × 10 can be divided to sets of 20 blocks with a value of 0.2 each

The 4 sets of 10s can be divided by 5 to give sets of 8 with a value of 0.08

The 5 cubes divided 5 gives five cubes with each cube having a value of 0.01.

Therefore;

The value of each division set is 0.2 + 0.08 + 0.01 = 0.29

The number of hundredths in 0.29 = 9

The number of hundredths in each division set is therefore; <u>D. 9</u>

Learn more about number place value here:

brainly.com/question/184672

5 0
2 years ago
Sally has a discount card that reduces the price of her grocery bill in a certain grocery store
ki77a [65]

0.95c

100% minus 5% is 95%, or 0.95. This means Sally only has to pay 0.95 times the grocery bill, or c, which represents 0.95c.

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3 years ago
Simplify -3p3 + 5p + (-2p 2) + (-4) - 12p + 5 - (-8p3). Select the answer in descending powers of p.
BigorU [14]
-3p^3 + 5p -2p^2 - 4 - 12p + 5 + 8p^3
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It is the second choice
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