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Pavel [41]
3 years ago
12

When evaluating the expression 3 x (3 + 12/3) - 4, Ryan began with 3 + 12. What was Ryan's mistake?

Mathematics
2 answers:
Airida [17]3 years ago
6 0

Answer:

He didn't follow the pemdas rule<u> (see explanation)</u>

Step-by-step explanation:

Rayan's mistake is that he didn't follow the pemdas rule, which states that you start with wat is inside parentheses first, then exponents then multiplication and division(from left to right) and then adding and  subtracting (from left to right).

KIM [24]3 years ago
3 0

Answer:

He has to divide 12/3 first

Step-by-step explanation:

it’s like pemdas you have to do that first then you go on to added the 3+ whatever 12/3 is

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Step-by-step explanation:

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3 years ago
A rectangle with an area of 4/7 m2 is dilated by a factor of 7. What is the area of the dilated rectangle
tatyana61 [14]

according to the picture we have:

x.y=4.7

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3 years ago
How do you know if a graph you are looking at shows a periodic function? How do you determine the period of the graph?
mylen [45]

Answer:

A function f(x) is said to be periodic, if there exists a positive real number T such that f(x+T) = f(x).

You can also just say: A periodic function is one that repeats itself in regular intervals.

Step-by-step explanation:

The smallest value of T is called the period of the function.

Note: If the value of T is independent of x then f(x) is periodic, and if T is dependent, then f(x) is non-periodic.

For example, here's the graph of sin x.  [REFER TO PICTURE BELOW]

Sin x is a periodic function with period  2π  because  sin(x+2π)=sinx  

Other examples of periodic functions are all trigonometric ratios, fractional x (Denoted by {x} which has period 1) and others.

In order to determine the period of the determined graph however, just know that the period of the sine curve is the length of one cycle of the curve. The natural period of the sine curve is 2π. So, a coefficient of b=1 is equivalent to a period of 2π. To get the period of the sine curve for any coefficient b, just divide 2π by the coefficient b to get the new period of the curve.

Hopefully this helped a bit.

6 0
3 years ago
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Aleksandr-060686 [28]

Answer:

48

Step-by-step explanation:

Double the product of 4y and 3b

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y = 2 and b = 1

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3 years ago
A survey asked 816 college freshmen whether they had been to a movie or eaten in a restaurant during the past week. The followin
Nikitich [7]

Answer:

the answer is 90

Step-by-step explanation:

296-96=90

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3 years ago
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