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Kaylis [27]
3 years ago
5

The sum of a number and its reciprocal is 6.41. What is the number?

Mathematics
1 answer:
balandron [24]3 years ago
4 0

Answer:

i think you need to make the number into a whole all together.

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The accounting department analyzes the variance of the weekly unit costs reported by two production departments. A sample of 16
Sergio [31]

Answer:

We can conclude that the result is significant and production differ in cost variance.

Step-by-step explanation:

Given :

n1 = 16

n2 = 16

s1² = 5.7

s2² = 2.8

α = 0.10

H0 : σ1² = σ2²

H1 : σ1² ≠ σ2²

The test statistic :

Ftest = s1² / s2² =

Ftest = 5.7 / 2.8

Ftest = 2.036

Using the Pvalue from Fratio calculator :

df numerator = 16 - 1 = 15

df denominator = 16 - 1 = 15

Pvalue(2.036, 15, 15) = 0.0898

Pvalue = 0.0898

Since the Pvalue is < α ; We can conclude that the result is significant and production differ in cost variance.

3 0
3 years ago
I need help PLEASSEE
nadya68 [22]
We know that perpendicular lines have slopes which are negative inverses of each other. This means that the slope of the line we are going to need to find is 3.

Now, we can use the point-slope formula to find the actual equation of the line we are trying to find. The point-slope formula is (y - y_1) = m(x - x_1), where y_1 and x_1 are the coordinates of a point on the line and m is the slope. 

Thus, the equation of the line we are trying to find is:
(y - 7) = 3(x - 2)
y - 7 = 3x - 6
y = 3x + 1

However, this is not an answer choice. The answers given have the constant on the right side of the equation. Thus, we will make our answer have the constant on the right side:
y - 3x = 1
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3x - y = -1

This is an answer choice. B, or 3x - y = -1 is the correct answer.
7 0
3 years ago
Hey can you please answer this question on 7th grade exponents? thank you! boo
Ket [755]

A. 75 x 0.0016= .12 Has a value between 0 and 1

B. 3^5 / 3^-6 = 177147 Does not a value between 0 and 1

C. 1/4^3 x 1/4^2 = about 0.0009 Has a value between 0 and 1

D. -7^5 / -7^7 = about 0.02 Has a value between 0 and 1

8 0
3 years ago
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What do I need to know to ace my test on basic constructions for geometry
ASHA 777 [7]

Answer:

Its important to ask your teacher this alot  of tests are different.  But just study the general idea of what you've learned so far.  

step-by-step explanation:

7 0
2 years ago
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You roll a fair six-sided die twice. The
almond37 [142]

Answer:

their is a 1 in 36 chance that happens

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