All categories

3 years ago

Evaluate 13 - 0.75y + 8x when w =12 and x=1/2

Mathematics

1 answer:

JulijaS [17]3 years ago

8 0

Note: I am assuming you meant to write the value of y = 12 instead of w = 12.

So, I am assuming y = 12

Answer:

The value of 13 - 0.75y + 8x when we substitute y = 12 and x = 1/2 will be: 8

Step-by-step explanation:

Given the expression

$13\:-\:0.75y\:+\:8x$

Given

y = 12

x = 1/2

substituting y = 12 and x = 1/2 in the expresion

$13\:-\:0.75y\:+\:8x=13\:-\:0.75\left(12\right)\:+\:8\left(\frac{1}{2}\right)$

$=13-0.75\cdot \:12+8\cdot \frac{1}{2}$

$=13-9+4$

$=8$

Therefore, the value of 13 - 0.75y + 8x when we substitute y = 12 and x = 1/2 will be: 8

You might be interested in

If APORASTU, what is the scale factor of APOR to ASTU? Ο Α. 5 Ο Ο Ο Β. 4 G. D

forsale [732]

Answer:

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original

scale factor = $\frac{TU}{QR}$ = $\frac{4}{20}$ = $\frac{1}{5}$ → C

7 0

3 years ago

Use algebraic rules of equations to predict the solution type to the system of equations. Include all of your work for full cred

svp [43]

Answer:

The system has infinite solutions

Step-by-step explanation:

For a system of two linear equations it is always true that if one equation is a linear combination of another, then the system will have infinite solutions.

Suppose we have the following system:

$ax + by = c\\dx + hy = f$

If there is a number n for which it is fulfilled that

$= n *$

Then the system has infinite solutions.

In this case the system is:

$x + 2y=10\\3x+6y =30$

Observe that:

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

Then $n =\frac{1}{3}$

The system has infinite solutions

5 0

3 years ago

Leah is buying curtains for her bedroom window. She wants the curtains to hang from the top of the window to the floor. The wind

Fiesta28 [93]

4’+2’=6’

6 feet to inches: 6 x 12 = 72”

3 0

3 years ago

The following data are from an experiment designed to investigate the perception of corporate ethical values among individuals w

alukav5142 [94]

Answer:

Part 1

a. Sum of Squares, Treatment= 61

b. Sum of Squares, Error= 7.5

c. Mean Squares, Treatment = 30.5

d. Mean Squares, Error= 0.5

2. the F value lies in the rejection region > 3.6823

3. The value of the test statistic = 61

4. The p-value is < 0.00001

5. Conclusion

Since p-value < α, H0 is rejected.

6. Between x`2 and x`3

7. Fisher's Least Significant Difference value almost 0.869

8.There is a significant difference between the means

Step-by-step explanation:

Summary of Data

Treatments

1 2 3 Total

n 6 6 6 18

∑x 42 57 30 129

Mean 7 9.5 5 7.167

∑x2 298 543 152 993

Sd.D 0.8944 0.5477 0.6325 2.0073

ANOVA Table

Source SS df MS

Between-treatments 61 2 30.5 F = 61

Error 7.5 15 0.5

Total 6 8.5 17

a. Sum of Squares, Treatment= 61

b. Sum of Squares, Error= 7.5

c. Mean Squares, Treatment = 30.5

d. Mean Squares, Error= 0.5

2. Using alpha= 0.05 the F value lies in the rejection region i.e F > 3.6823

x1` -x2`= 7-9.5= -2.5 Not significant as difference <3.68

x1`- x3`= 7-5= 2 Not significant as difference <3.68

x2` -x3`= 9.5-5= 4.5 Significant as difference > 3.68

3. The value of the F test statistic = 61

4. The p-value is < 0.00001

5. Conclusion

Since p-value < α, H0 is rejected.

6. Using alpha= .05, differences occurs between x2` and x3` as their difference is greater than 3.68

7. Fisher's Least Significant Difference value almost 0.869

Least Significant Difference= t( 0.025,15) √2s²/r s²= 0.50 r= 6 =n1=n2=n3

Least Significant Difference= 2.13 √ 2*0.50/ 6

=0.869

8.There is a significant difference between the means

x1` -x2`= 7-9.5= -2.5 Significant as difference > Least Significant Difference

x1`- x3`= 7-5= 2 Significant as difference > Least Significant Difference

x2` -x3`= 9.5-5= 4.5 Significant as difference > Least Significant Difference

6 0

3 years ago

Lines A and B are parallel

Alinara [238K]

Answer:

your answer is

C ) 36°
I think that is right answer
please mark in brain list.

Explain:

180/5= 36

36×4= 144

180-144= 36 .

4 0

3 years ago