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Xelga [282]
3 years ago
7

10/? = 5/7 find the number that makes these fractions equal

Mathematics
2 answers:
SOVA2 [1]3 years ago
4 0

Answer:

10/14

Step-by-step explanation:i loooked it up

soldi70 [24.7K]3 years ago
4 0

Answer:

10/14

Step-by-step explanation:

I used the internet

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Suppose that 20% of the residents in a certain state support an increase in the property tax. An opinion poll will randomly samp
zepelin [54]

Answer:

C) There is roughly a 95% chance that the resulting sample proportion will be within 0.04 of the true proportion.

Step-by-step explanation:

Given that 20% of the residents in a certain state support an increase in the property tax.

Sample size = 400

We want the sample proportion to be within 0.04 of the true proportion (i.e., between 0.16 and 0.24)

i.e. margin of error <0.04

Std error of sample = \sqrt{\frac{pq}{n} } =\sqrt{\frac{0.2(0.8)}{400} } \\=0.02

Critical value = margin of error/ std error = \frac{0.04}{0.02} \\=2

We know z value for 95% two tailed roughly equals 2.

Hence 95% confidence is right.

C) There is roughly a 95% chance that the resulting sample proportion will be within 0.04 of the true proportion.

6 0
3 years ago
30 points. Pls help if you can. Will mark brainliest!! I need how you got the answer pls &lt;3 11) A box has Snickers, Milky Way
olga_2 [115]

Answer:

B is the answer

Step-by-step explanation:

Im the best

7 0
3 years ago
= -6(x-7) – 9 =what will the equal to ​
egoroff_w [7]

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5 0
3 years ago
1 and 5/7 x 1/6 simplify
konstantin123 [22]

Answer:

0.286

Step-by-step explanation:

12/7 x 1/6

3 0
2 years ago
Simplifying Complex fractions using any method
zloy xaker [14]

Answer:

3ab

-------------------

(b+a)

Step-by-step explanation:

3/a - 3/b

-------------------

1/a^2 - 1/b^2

Multiply the top and bottom by a^2 b^2/ a^2/b^2 to clear the fractions

(3/a - 3/b) a^2 b^2

-------------------

(1/a^2 - 1/b^2) a^2b^2

3ab^2 - 3 a^2 b

-------------------

b^2 -  a^2

Factor out 3ab on the top

3ab( b-a)

-------------------

b^2 -  a^2

The bottom is the difference of squares

3ab( b-a)

-------------------

(b-a) (b+a)

Cancel like terms from the top and bottom

3ab

-------------------

(b+a)

6 0
3 years ago
Read 2 more answers
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