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sammy [17]
2 years ago
7

What is 4 2/5 × 1 1/2 ​

Mathematics
2 answers:
jek_recluse [69]2 years ago
5 0

Step-by-step explanation:

4 2/5 × 1 ½

22/5 × 3/2

4/1 × 2/1

4 × 2

8

lisabon 2012 [21]2 years ago
3 0

Answer:

24.2

Step-by-step explanation:

calculator is reliable

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The value of the variable would be 82, as the inside angles of a triangle add up to 180
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Find the common denominator 2/7 and 7/10
deff fn [24]

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70

Step-by-step explanation:

Finding the common denominator is really just finding the gcf of 7 and 10. The gcf of 7 and 10 is 70. So the common denominator is 70.

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3 years ago
Please Help Question in picture
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(-3, 5.5)

Step-by-step explanation:

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2 years ago
Read 2 more answers
In a survey of 603 adults, 98 said that they regularly lie to people conducting surveys. Create a 99% confidence interval for th
marysya [2.9K]

Answer:

The population proportion is estimated to be with 99% confidence within the interval (0.1238, 0.2012).

Step-by-step explanation:

The formula for estimating the population proportion by a confidence interval is given by:

\hat{p}\pm z_{\alpha /2}\times\sqrt{\frac{\hat{p}\times(1-\hat{p})}{n}}

Where:

\hat{p} is the sample's proportion of success, which in this case is the people that regularly lie during surveys,

z_{\alpha /2} is the critical value needed to find the tails of distribution related to the confidence level,

n is the sample's size.

<u>First</u> we compute the \hat{p} value:

\hat{p}=\frac{successes}{n}=\frac{98}{603}=0.1625

<u>Next</u> we find the z-score at any z-distribution table or app (in this case i've used StatKey):

z_{\alpha /2}=2.576

Now we can replace in the formula with the obtained values to compute the confidence interval:

\hat{p}\pm z_{\alpha /2}\times\sqrt{\frac{\hat{p}\times(1-\hat{p})}{n}}=0.1625\pm 2.576\times\sqrt{\frac{0.1625\times(1-0.1625)}{603}}=(0.1238, 0.2012)

5 0
3 years ago
Evaluate g (x) = 4- 3x when x = -3, 0, and 5
Nataliya [291]

Answer:

13, 4, -11

Step-by-step explanation:

g(-3) = 4-3(-3) = 4+9 = 13

g(0) = 4-3(0) =4-0 = 4

g(5) = 4-3(5) = 4-15 = -11

7 0
3 years ago
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