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Evgesh-ka [11]
3 years ago
6

Douglas said he can find 240÷10 by taking the 0 off 240 to get 24. Douglas finds 59.20÷10 using the same method and gets 59.2. U

se the drop-down menus to complete the statement about why Douglas is correct or incorrect.
Mathematics
1 answer:
Lady bird [3.3K]3 years ago
3 0

Answer:

Douglas is incorrect

Step-by-step explanation:

We can remove a zero from a number that has a zero on the right of the decimal place if that zero is the last number before the decimal place. This is true for 240 divided by 10 because the zeros cancel out:

=240/10=24

In 59.20 this is not true. Dividing a number with a decimal place requires the decimal place to move and not cancel out the zero after the decimal place. Therefore:

=59.20/10=5.92

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F(x)=x 3−9xf, left parenthesis, x, right parenthesis, equals, x, cubed, minus, 9, x What is the average rate of change of f over
mel-nik [20]

Answer:

A(x) = 243

Step-by-step explanation:

Given

f(x) = x^3 - 9x

Interval: (12,6)

Required

Determine the average rate of change

Average rate is calculated as thus;

A(x) = \frac{f(b) - f(a)}{b - a}

<em>In this case; b = 12 and a = 6</em>

Calculating f(12)

f(12) = 12^3 - 9 * 12

f(12) = 1728 - 108

f(12) = 1620

Calculating f(6)

f(6) = 6^3 - 9 * 6

f(6) = 216 - 54

f(6) = 162

Substitute 12 for b and 6 for a in A(x) = \frac{f(b) - f(a)}{b - a}

A(x) = \frac{f(12) - f(6)}{12 - 6}

Substitute values for f(6) and f(12)

A(x) = \frac{1620 - 162}{12 - 6}

A(x) = \frac{1458}{ 6}

A(x) = 243

4 0
2 years ago
Daniel’s basketball team won 24 games and lost 8 games. Express the ratio of wins to losses in simplest form.
posledela

Answer:

3:1

Step-by-step explanation:

24:8 can both be divided by 8, 24/8 = 3, 8/8 = 1, making the ratio

3:1 ,

hope i helped!

7 0
2 years ago
Which operation is going to be performed first <br>3÷2+(10-2×4)​
sergejj [24]

Answer:

parenthesis

Step-by-step explanation:

Hello!

To know what the order of operations is we go by PEMDAS

Parenthesis then Exponents then multiplication and division from left to right then addtion and subtraction from left to right.

Since parenthesis are in this equation we would do those first

The answer is parenthesis

Hope this helps!

7 0
2 years ago
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sp2606 [1]
A sample from a group of people would be false.
5 0
2 years ago
What is the domain of the function shown on the graph?
Artist 52 [7]

Answer:

C. -∞ < x < ∞

Step-by-step explanation:

Domain is the set of x-values that can be inputted into function f(x).

We see that our x-values can be any number. Therefore, we have all real numbers as our domain:

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8 0
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