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dexar [7]
3 years ago
10

Explain why it does not matter what letter or symbol is used to find and unknown number?

Mathematics
1 answer:
boyakko [2]3 years ago
8 0
It dose not matter what letter or symbol to find the unknown number because you are only using something to represent that number.
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Is 7/10 more than 1/2
Bingel [31]
7/10 is bigger because it is more than half
5 0
3 years ago
Good afternoon!
Vladimir [108]

9514 1404 393

Answer:

  5) 112°

  6) 40°

Step-by-step explanation:

5) The angle E or ? is half the sum of the intercepted arcs:

  ? = (130° +94°)/2 = 112°

__

6) The angle D is half the difference of the intercepted arcs:

  ? = (135° -55°)/2 = 40°

8 0
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
Is 3.14 a Rational, Whole Number, Integer, or Irrational number?​
IrinaVladis [17]

Answer:

the answer is a rational number

7 0
3 years ago
Read 2 more answers
Please answer this correctly
Ulleksa [173]

Answer:

37.5%

Step-by-step explanation:

So the original fraction is 3/8 and we can’t simplify it so we gotta turn it into a percent, and we can do that by dividing 3 and 8nto get .375 so the percent is 37.5%.

7 0
3 years ago
Read 2 more answers
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