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3 years ago

Which of these equations has only one solution?

Mathematics

2 answers:

Nata [24]3 years ago

5 0

Answer:

Step-by-step explanation:

trust me im a senior and its easy

kolezko [41]3 years ago

4 0

The correct answer to the question provided is a the only possible solution is a=3

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Which is not an equation of the line going through (3, -6) and (1, 2)

mixas84 [53]

The equation is not going to make sence

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3 years ago

Ernesto tried to determine the solution for the system of equations using substitution. His work is shown below.

defon

The answer is step 3. Step 2 is suppose to be 3 x 7 and the answer is 21 but he writes 7 in step 4

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4 years ago

Read 2 more answers

P( total shown=3) rolling two fair number cubes

kondor19780726 [428]

Dice have six sides. So 6 cubed would be 216. Does that sound right?

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4 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

3 years ago

Pg 436 Questions 10-13

Rzqust [24]

10. P- 30 ft , A- 8064
11. P- 18.8 ft, A- 44.8
I know it's only 2 questions but that's all I know sorry :( I hope that I at least helped a little though!

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3 years ago