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Dmitrij [34]
4 years ago
8

Dylan is evaluating the expression 13 + 19 + 7 + 10. At one step in his work, Dylan rewrites the equation as 13 + 7 + 19 + 10. W

hich property of addition must Dylan have used when he evaluated the expression?

Mathematics
1 answer:
AlekseyPX4 years ago
7 0

Answer:

Communicative Property

Step-by-step explanation:

The communicative property is basically just switching numbers around but still leading to the same answer, if you could see, both of the equations lead to the same answer, 49. Here is a chart to help you out.

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Surface area of 17ft by 5ft by 8ft
pentagon [3]

Answer:

The surface area of a rectangular prism with length of

17, a width of 5 and a height of 8 is:

522.0000 square units.

Step-by-step explanation:

Surface Area =

[(Length x Width) + (Length x Height) + (Width x Height)] x 2

I hope this helps!!! have a wonderful day :)

7 0
4 years ago
Find the cost per visit to the nearest cent: Health and Heart Club, $259 per year, 3 visits per week. a. $1.66 b. $7.19 c. $156
vagabundo [1.1K]

Answer:

a. $1.66

Step-by-step explanation:

We have been given that Health and Heart Club charges $259 per year. A person has 3 visits per week. We are asked to find the cost of per visit to Health and Heart Club.

We know that there are 52 weeks in one year. So total visits in one year would be 3 times 52 that 156 visits.

Now, we will divide total cost by 156 to find cost per visit.

\text{Cost per visit}=\frac{\$259}{156}

\text{Cost per visit}=\$1.660256

Rounding to nearest hundredths, we will get:

\text{Cost per visit}\approx \$1.66

Therefore, the cost per visit is $1.66 and option 'a' is the correct choice.

5 0
3 years ago
A pair of sneakers cost $45 now. What would be the cost of the sneakers in ten years if the inflation rate is 7%? Estimate your
Vika [28.1K]
The inflation rate would increase the price of the sneakers to $88.52.
3 0
3 years ago
A, B, and C are the midpoints of XY, YZ, and XZ.<br> Find the perimeter of XYZ
Monica [59]

Answer:

100 cm

since B,C are the two midpoints of ZY,XZ then BC is parallel to side XY and equal half of its length then XY equal 30 cm and simce A,B are the midpoints of XY,YZ then AB equal half XZ then XZ equal 36 cm then the perimeter of XYZ equals 36+30+34 equals 100 cm

4 0
3 years ago
Find the period of the function. y=3 sin x/8
Alexus [3.1K]

Answer:

The period of given function is  Period = 16\pi

So, Option B is correct.

Step-by-step explanation:

In this question we need to find the period of the function y= 3 sin x/8

The formula used to find period of function is: \frac{2\pi }{b}

We need to know the value of b.

To find the value of b we compare the standard equation with the equation of function given.

Standard Equation: y = a sin(bx - c) +d

Given Equation: y= 3 sin(x/8)

Comparing we get:

a= 3

b= 1/8

c= 0

d=0

So, we get the value of b i.e 1/8. Putting it in the formula to find period of given function.

Period = \frac{2\pi }{b}

Period = \frac{2\pi }{\frac{1}{8}}

Solving,

Period = 2\pi *8

Period = 16\pi

So, the period of given function is  Period = 16\pi

5 0
3 years ago
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