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trasher [3.6K]
3 years ago
7

The Quadratic Formula, , was used to solve the equation. 2x2 − 8x + 7 = 0. Fill in the missing denominator of the solution.

Mathematics
1 answer:
andrey2020 [161]3 years ago
8 0

Answer:

theanswer is garanteed 4

Step-by-step explanation:

i just took a test tries -16, 2, and 14 and they were all wrong and then it told me the answer was 4. hope it helps!

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Arturo has a log that is 4 yards long. he cuts the log into pieces that are 1/3 yard long . how many pieces will Arturo have?
gizmo_the_mogwai [7]
Arturo will have 12 pieces. For this problem, you need to multiply by the reciprocal. To do that, you flip 1/3 over to 3/1 and multiply that by 4. 3/1 times 4 equals 12. Remember that 4 as a fraction is 4 over 1. So you would multiply 4 by the numerator (3) because 4 is the numerator in 4/1.
8 0
3 years ago
Find the equation of the linear function represented by the table below in slope-
Anarel [89]

Answer:

y = 3x + 5

Step-by-step explanation:

slope:

11 - (-1) / 2 - (-2) = 12/4 = 3

slope intercept form is y = mx + b, so right now you have m = 3:

y = 3x + b

now, since you know x = -2 and y =-1 is a solution, you can plug those values in:

-1 = 3 * -2 + b

-1 = -6 + b

5 = b

This means the equation is y = 3x + 5

5 0
3 years ago
Read 2 more answers
Please heeeeeeeeeeeeeeeeeeeeeeeeeelp
hram777 [196]
B) x=2 and y=14 i’m pretty sure lol
5 0
3 years ago
A repeated-measures study comparing two treatments with n = 4 participants produces md = 2 and ss = 75 for the difference scores
valentinak56 [21]

The estimated standard error for the sample mean difference is  2.5 .

According to the question

A repeated-measures study comparing two treatments

n = 4

MD(mean difference) = 2

SS (sum of square) = 75

Now,

error for the sample  

Formula for standard error

S^{2} = \frac{SS}{n-1}

by substituting the value

S^{2} = \frac{75}{4-1}

S^{2} = \frac{75}{3}

S² = 25

S = 5 (s is never negative)

Standard error of the estimate for the sample mean difference

As

The standard error of the estimate is the estimation of the accuracy of any predictions.

The formula for standard error of the mean difference

standard error of the mean difference  =\frac{standard\\\ error}{\sqrt{n} }  

standard error of the mean difference = \frac{5}{\sqrt{4} }  

standard error of the mean difference = 2.5

Hence, the estimated standard error for the sample mean difference is  2.5 .

To know more about estimated standard error here:

brainly.com/question/14524236

#SPJ4

5 0
1 year ago
Which of the following terms best describes three points that all lie in a straight line?A. CollinearB. CongruentC. EqualD. Midp
Ket [755]

Answer:

A. Collinear

Step-by-step explanation:

three points that all lie in a straight line

A. Collinear- means along the same line

B. Congruent  - means the same

C. Equal  = means the same

D. Midpoint= means the middle

8 0
3 years ago
Read 2 more answers
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