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Lilit [14]
3 years ago
7

Which equation represents a proportional relationship?

Mathematics
1 answer:
Mice21 [21]3 years ago
4 0

Good evening ,

______

Answer:

y=15x and y= -x

___________________

Step-by-step explanation:

y=15x represents a proportional relationship because y/x=15

y= -x represents a proportional relationship because y/x= -1.

:)

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What is the one shape of cross-section we could create by slicing the cylinder perpendicular to its base
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rectangle

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A rectangle represents a figure with four sides having equal opposite sides and the inside angle between the two adjacent sides is ninety degree.

When any plane is made to pass through the cylinder creating a cross section which is perpendicular to its base, it results a two-dimensional cross sectional shape of a rectangle.

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What is 9/4 divided by 3/8?
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Disney held a breakfast for parents and their children to eat with Mickey and Minnie MouseAdult tickets cost $17.95 and children
ratelena [41]
This is a problem for 2 equations and 2 unknown.
so let x be the number of adults in the breakfast
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3 years ago
What variable do we use for slope? A.x B.y C.m D.b
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Toxaphene is an insecticide that has been identified as a pollutant in the Great Lakes ecosystem. To investigate the effect of t
Likurg_2 [28]

Answer:

This data suggest that there is more variability in low-dose weight gains than in control weight gains.

Step-by-step explanation:

Let \sigma_{1}^{2} be the variance for the population of weight gains for rats given a low dose, and \sigma_{2}^{2} the variance for the population of weight gains for control rats whose diet did not include the insecticide.

We want to test H_{0}: \sigma_{1}^{2} = \sigma_{2}^{2} vs H_{1}: \sigma_{1}^{2} > \sigma_{2}^{2}. We have that the sample standard deviation for n_{2} = 22 female control rats was s_{2} = 28 g and for n_{1} = 18 female low-dose rats was s_{1} = 51 g. So, we have observed the value

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As we want carry out a test of hypothesis at the significance level of 0.05, we should find the 95th quantile of the F distribution with 17 and 21 degrees of freedom, this value is 2.1389. The rejection region is given by {F > 2.1389}, because the observed value is 3.3176 > 2.1389, we reject the null hypothesis. So, this data suggest that there is more variability in low-dose weight gains than in control weight gains.

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