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Step2247 [10]
3 years ago
11

Why can you rewrite 4.7 as 4.70

Mathematics
2 answers:
bixtya [17]3 years ago
5 0

Answer:

Step-by-step explanation:

4.7 and 4.70 are both same numerically

only difference is 4.7 is written one place after decimal

and 4.70 is two place after decimals

moreover , there is not significant  role of 0 afterwards

that is

4.7

4.70

4.700

and so on all are same

N76 [4]3 years ago
3 0
Because 4.7 is the "abbreviation" for 4.70 also 4.7 is the simplified version of 4.70 kind of like a fraction you 4 70/100 simplified is 4 7/10 or 4.7.
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Can anyone solve and explain part b
rewona [7]

Answer:

Below in bold.

Step-by-step explanation:

b.

If we drop a perpendicular line from B to AC and mark the point D on AC, we have 2 right triangles, with AD = DC = 16 cm.

So tan O = BD/16 = 15/8

BD = (16*15)/8

= 2*15

= 30.

So the area of triangle ABC = 16*30

= 480 cm^2.

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2 years ago
What is the volume of the cylinder below?
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Volume = πr²h


3.14 * (18 : 2)² * 12 =

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7 0
3 years ago
Read 2 more answers
A subway train on the Red Line arrives every eight minutes during rush hour. We are interested in the length of time a commuter
olasank [31]

Answer:c i just did the test

Step-by-step explanation:

5 0
3 years ago
Given the function f(x) = 4(2)x, Section A is from x = 1 to x = 2 and Section B is from x = 3 to x = 4.
Dmitry [639]

Answer:

Step-by-step explanation:

I'm sure you want your functions to appear as perfectly formed as possible so that others can help you.  f(x) = 4(2)x should be written with the " ^ " sign to denote exponentation:  f(x) = 4(2)^x

                                                                                      f(b) - f(a)

The formula for "average rate of change" is a.r.c. = --------------

                                                                                           b - a

                                    change in function value

This is equivalent to  ---------------------------------------

                                            change in x value

For Section A:  x changes from 1 to 2 and the function changes from 4(2)^1 to  4(2)^2:  8 to 16.  Thus, "change in function value" is 8 for a 1-unit change in x from 1 to 2.  Thus, in this Section, the a.r.c. is:

                 8

               ------ = 8 units    (Section A)

                  1

Section B:  x changes from 3 to 4, a net change of 1 unit:  f(x) changes from

4(2)^3 to 4(2)^4, or 32 to 256, a net change of 224 units.  Thus, the a.r.c. is

        224 units

      ----------------- = 224 units (Section B)

            1 unit

The a.r.c for Section B is 28 times greater than the a.r.c. for Section A.

This change in outcome is so great because the function f(x) is an exponential function; as x increases in unit steps, the function increases much faster (we say "exponentially").

7 0
3 years ago
Reduce fraction 27/36 lowest term
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If it 36/27 the answer is 1.33333 but if is 27/376 the answer will be 0.7 or 3/4
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