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3 years ago

Graph 7x-3y=-21 I am working on graphing

Mathematics

1 answer:

maks197457 [2]3 years ago

7 0

Subtract 7x to the other side then divide by -3 , then graph it on your graphing calc

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***15 Points*** Answer the questions for 15 Points.

Gelneren [198K]

Answer:

Step-by-step explanation:

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3 years ago

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Determine the value of x. 30° 45° 20° 60°

barxatty [35]

Answer:

x=30

Step-by-step explanation:

x+2x+3x=180

6x=180

x=180/6=30

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3 years ago

What is the rate of change between (2,2) and (17,7)

ziro4ka [17]

Answer:

$\frac{1}{3} = m$

Step-by-step explanation:

$\frac{-y_1 + y_2}{-x_1 + x_2} = m$

$\frac{-2 + 7}{-2 + 17} = \frac{5}{15} = \frac{1}{3}$

I am joyous to assist you anytime.

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3 years ago

What is the volume of a rectangular prism with side lengths of x, x +4, and 2x-1

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3 years ago

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

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

4 0

2 years ago