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Vika [28.1K]
3 years ago
6

Use the zeros of the following quadratic to find the x-value of the vertex.

Mathematics
1 answer:
frez [133]3 years ago
6 0
(x-1)^2 is the factored version, so vertex is at 0, which is 1, so, A
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As part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 c
iris [78.8K]

Answer:

Step-by-step explanation:

Given that a  part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 cows who had been given a dietary supplement of selenium (2 mg/day) for one year.

If x is the selenium concentration then

X has mean= 6.21 mg/dl

and std dev = 1.84

Sample size n = 36

std error of sample = \frac{1.84}{\sqrt{36} } \\=0.307

Margin of error for 95%

1.96(0.307)=0.602

Confidence interval = (6.21-0.605, 6.21+0.605)\\= (5.605, 6.815)

4 0
3 years ago
The two lines intersected by the transversal are barrel. What is the value of x?
Vladimir79 [104]
The value of x is 11

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3 years ago
Use the algebraic description (x, y) ➡️ (x - 5, y + 2) for the points N (2, 2), P (4, 2) and Q(1, -1) and write the coordinates
dezoksy [38]

9514 1404 393

Answer:

  N'(-3, 4), P'(-1, 4), Q'(-4, 1)

Step-by-step explanation:

The transformation is telling you to subtract 5 from each x-coordinate, and add 2 to each y-coordinate.

7 0
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Can 403/72 be reduced?
tresset_1 [31]

Answer:

yes but it would be an incomplete fraction

Step-by-step explanation:

3 0
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Read 2 more answers
Type ALL the steps of writing the equation of the line given the slope of the line is −4 and a point on the line is (−2,1).
Mars2501 [29]

Answer:

y = -4x - 7

Step-by-step explanation:

we use the slope intercept formula given by; y = mx + b

b = y intercept, which is when x = 0

m = slope

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y = mx + b

plug in your coordinates (-2,1)

1 = -4(-2) + b

1 = 8 + b

1 - 8 = b

-7 = b

put it all together.

y = -4x - 7

3 0
2 years ago
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