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3 years ago

Help with this questionnnnnnn

Mathematics

1 answer:

Vadim26 [7]3 years ago

6 0

Answer:

yes this is correct

Step-by-step explanation:

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HHEELLLPPP MEEhbbnbjhjjh jhjhjhjh

Ber [7]

Answer:

-3x + 36

it is correct answer

4 0

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

3 years ago

Can somebody help me pleasee????

Marina86 [1]

Answer:

Step-by-step explanation:

3x + 3y = -x + 5y

3x + x = 5y - 3y

4x = 2y

Divide both by 2

2x = y

(1,2) when x=1, y=2

2(1)=2 is a true statement

(2,4) when x=2, y=4

2(2)=4 is a true statement

8 0

3 years ago

-4i+ 3i= i- 8+ 3i- 12

Thepotemich [5.8K]

Answer:

Step-by-step explanation:

-4i+3i=i-8+3i-12

-i=4i-20

20=4i+i

20=5i

20/5=i

4=i

4 0

3 years ago

Which answer choice correctly completes the sentence The problem solving plan is a method to A.Show all your work in math. B. Gi

Dovator [93]

Answer:

C. Make solving a word problem easier.

Step-by-step explanation:

5 0

3 years ago