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iragen [17]
3 years ago
13

Express 510 & 3/10 % as a decimal fraction.

Mathematics
1 answer:
Naddika [18.5K]3 years ago
5 0

Answer:

5.10 and 0.3

Step-by-step explanation:

510% in decimal form is 5.10 if u move the decimal to the left twice

3/10% is 30% which in decimal from is .3 if u move the decimal over to the left twice

hope this helps

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In a quality control test of parts manufactured at Dabco Corporation, an engineer sampled parts produced on the first, second, a
sammy [17]

Answer:

p value = 0.0174

Conclusion : we reject the null hypothesis

Step-by-step explanation:

Thinking step:

We need to perform a test to determine if the proportion of the good parts is the same for all three shifts at a significance level of \alpha = 0.05

Assumption : all the population for each or the three shifts is not equal.

Calculation:

Let p₁ be the sample of the first shift

     p₂ be the sample of the second shift

     p₃ be the sample of the third shift

According to the null hypothesis

H₀ = p₁ = p₂ = p₃

In other words, all the population sample proportions are equal.

Alternatively, we can assume that the three shift are not equal p₁ ≠ p₂ ≠ p₃

Tabulating and performing the \chi² test gives 8.10

degrees of freedom:

df = k - 1

   = 3 - 1 = 2

Thus the degree of freedom is 2

Solving using the MINITAB software gives: p = 0.174

The solution shows that the p value < level of significance, then p-value lies in the range 0.0174≤\alpha≤0.05

Therefore, we reject the null hypothesis based on the fact that the three shifts are not equal.

5 0
2 years ago
A circle has a radius of 6 meters. Find the area of the sector whose central angle is 82°. Round to the nearest tenth.
jok3333 [9.3K]

The answer is 25.8 m2 if you have any questions feel free to ask

5 0
3 years ago
What is 8  23/100 as a decimal 
KengaRu [80]
So since there is a mixed number, 8 means there are 8 one-hundreds and 23 remaining ones. So, 800+23=823 ones. 823/100 as an improper fraction. since it is already out of 100, your job is easy. you now divide 823 by 100 (move the decimal over to the left 2 places) and you get 8.23 as a decimal. Hope i helped!!
5 0
2 years ago
Read 2 more answers
[IMAGE ATTACHED]<br> PLEASE HELP!!
Kay [80]
Answer: y=24

Explanation:
start by adding the two expressions
7y+12=180
7y=168
168/7
y=24

Plug it in/Check your work:
3(24)+5=77
4(24)+7=103
77+103=180
4 0
3 years ago
The line represented by 2y = x + 8 is dilated by a scale factor of k centered at the origin, such that the image of the line has
Mandarinka [93]

Answer:

k=\frac{1}{2}

Step-by-step explanation:

we know that

A dilation is a non rigid transformation that produce similar figures

If two lines are similar, then the lines are parallel

Lines parallel have the same slope

so

we have

Line A

2y=x+8

isolate the variable y

y=0.5x+4 ----> equation A

The slope of the line A is m=0.5

The y-intercept of the line A is b=4

Line B

y-\frac{1}{2}x=2

isolate the variable y

y=\frac{1}{2}x+2 ----> equation B

The slope of the line B is m=0.5

The y-intercept of the line B is b=2

Remember that

The y-intercept of line A multiplied by the scale factor k must be equal to the y-intercept of line B

so

4k=2

solve for k

k=\frac{1}{2}

4 0
3 years ago
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