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nevsk [136]
3 years ago
15

Which graph shows a proportional relationship between the number of hours of renting a bike and the total amount spent to rent t

he bike? A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 14, 28, 42, 56, and 70. Points are shown on ordered pairs 0, 0 and 2, 14 and 4, 28 and 6, 32 and 8, 44. These points are connected by a line. The label on the x axis is Number of Hours. The title on the y axis is Total Amount in dollars. A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 10, 20, 30, 40, and 50. Points are shown on ordered pairs 0, 0 and 2, 10 and 4, 20 and 6, 42 and 8, 56. These points are connected by a line. The label on the x axis is Number of Hours. The title on the y axis is Total Amount in dollars. A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 14, 28, 42, 56, and 70. Points are shown on ordered pairs 0, 0 and 2, 14 and 4, 28 and 6, 35 and 8, 44. These points are connected by a line. The label on the x axis is Number of Hours. The title on the y axis is Total Amount in dollars. A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 14, 28, 42, 56, and 70. Points are shown on ordered pairs 0, 0 and 2, 14 and 4, 14 and 6, 14 and 8, 14. These points are connected by a line. The label on the x axis is Number of Hours. The title on the y axis is Total Amount in dollars.
Mathematics
1 answer:
lions [1.4K]3 years ago
4 0

Answer:

A, the graph is shown

Step-by-step explanation:

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If the area of a right-angled triangle is 47 56 cm and its height is 11.6 cm. finds its base.​
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Answer:

820          

Step-by-step explanation:

Hi so if your area is 4756, the base would be 820

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Factor the expression 4r^2 - 64
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4(r+4)(r-4)

Step-by-step explanation:

If you factor it out, then it will be 4(r+4)(r-4). You can double check by multiplying it.

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Can someone help me get the answer for this? i don’t understand it, any help is appreciated :))
Dima020 [189]

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That is, if the terminal ray of an angle intersects the unit circle in the first quadrant, the point of intersection reflected across the y-axis will give an angle whose measure is the original angle subtracted from the measure of a half-circle. Since the measure of a half-circle is π radians, the reflection of the angle π/6 radians will be the angle π-π/6 = 5π/6 radians.

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The authors of a paper presented a correlation analysis to investigate the relationship between maximal lactate level x and musc
ArbitrLikvidat [17]

Answer:

a) Sample correlation coefficient, r = 0.7411

bi) test statistic, t = 4.102

bii) P-value = 0.000736

Step-by-step explanation:

a) The formula for the sample correlation coefficient is given by the formula:

r = \frac{S_{xy} }{\sqrt{S_{xx} S_{yy} }} }

S_{xx} = 2,648,130.357\\S_{yy} = 36.7376,\\S_{xy} = 7408.225

r = \frac{7408.225}{\sqrt{2648130.357*36.7376} }

r = 0.7511

b)

i) formula for the test statistic is given by the formula:

t = \frac{r\sqrt{n-1} }{\sqrt{1 - r^{2} } }

sample size, n = 4

t = \frac{0.7511\sqrt{14-1} }{\sqrt{1 - 0.7511^{2} } }

t = 4.102

ii) Degree of freedom, df = n -2

df = 14 -2

df = 12

The P-value is calculate from the degree of freedom and the test statistic using excel

P-value =(=TDIST(t,df,tail))

P-value = (=TDIST(4.1,12,1)

P-value = 0.000736

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