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Crazy boy [7]
3 years ago
5

Martha is braiding a necklace for her friend. The graph below shows the length of the necklace with respect to the length of tim

e Martha has spent braiding.
Select the equation that represents the proportional relationship shown on the above graph.

A. L = 20t

B. L = 1/10t

C. L = 1/20t

D. L = 10t

Mathematics
1 answer:
USPshnik [31]3 years ago
8 0

Answer:

a. L = 20t

Step-by-step explanation:

The length increases by 20 millimeters per minute

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if the area of polygon P is 20 units² and the ratio of similarity of polygon P to polygon G is 7/3, what is the area of polygon
kipiarov [429]
Hope this helped and I’ve shown my work and the answer! :)

5 0
3 years ago
PLEASE HELP...!!!!!!!!!!
tangare [24]

Answer:

<em>5 and 10</em>

Step-by-step explanation:  

You have all the information you need to find the area of the circle and then subtracting that from 77 you'll have the area of the rectangle and will be able to figure out the length and height by looking at the answer options.

So the area of a triangle is 1/2(b x h) or (b x h)/2 so the base is 6 and the height is 9 so the area is 54/2 which equals 27. 77 - 27 = 50 so the area of the rectangle is 50. With the answer options provided I can see that <em>the height of the rectangle is 5 and the length is 10.</em>

6 0
3 years ago
At the city museum, child admission is $5.30 and adult admission is $9.40 . On Tuesday, 140 tickets were sold for a total sales
sergeinik [125]
C + a = 140......a = 140 - c
5.3c + 9.4a = 1086.4

5.3c + 9.4(140 - c) = 1086.4
5.3c + 1316 - 9.4c = 1086.4
5.3c - 9.4c = 1086.4 - 1316
-4.1c = - 229.6
c = -229.6 / -4.1
c = 56......so their were 56 child tickets sold
5 0
3 years ago
Read 2 more answers
Simplify: (c+4/c^2+5x+6)/(3c^2+12c/2c^2+5c-3)
juin [17]
(c+4/c^2+5c+6)/(3c^2+12c/2c^2+5c-3)= (c+4)/(c^2+5c+6) Multiplied by (2c^2+5c-3)/3c^2+12c= 2c^3+5c^2-3c+8c^2+20c-12/3c^4+12c^3+15c^3+60c^2+18c^2+72= 2c^3+13c^2+17c-12/3c^4+27c^3+78c^2+72c
6 0
3 years ago
Jerry took a sample of 4 employees in his office and observed how many hours they each worked one day.
Illusion [34]

The error in Jerry's calculation is 4.84

The number of employees, N = 4

The mean is calculated as:

\mu = \frac{10+2+4+8}{4} \\\mu = \frac{24}{4} \\\mu = 6

The formula for the standard deviation is:

SD =\sqrt{\frac{\sum{(x-\mu)^2}}{N} }

This can be further calculated as:

SD = \sqrt{\frac{(10-6)^2+(2-6)^2+(4-6)^2+(8-6)^2}{4} }\\\\SD = \sqrt{\frac{4^2+(-4)^2+(-2)^2+(2)^2}{4} } \\\\SD = \sqrt{\frac{16+16+4+4}{4} } \\\\SD = \sqrt{\frac{40}{4} } \\\\SD = \sqrt{10} \\\\SD = 3.16

Jerry thinks the Standard Deviation = 8

The true Standard Deviation = 3.16

Error = |True value - Measured value|

Error = |3.16 - 8|

Error = 4.84

Learn more here: brainly.com/question/18562832

3 0
2 years ago
Read 2 more answers
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