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Firlakuza [10]
3 years ago
7

Express 80 miles per hour in kilometers per hour

Mathematics
2 answers:
Anna [14]3 years ago
8 0
80 miles per hour is 128.74752 kilometers per hour
nataly862011 [7]3 years ago
5 0
It is 128.748 kilometers per hour
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Lena [83]

Answer:

Sales tax is $4.20

Step-by-step explanation:

70*6/100=4.2

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3 years ago
Evaluate the expression. (38 + 10) ÷ 12 + 52
Mice21 [21]
48/12=4
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Answer 56
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2 years ago
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Aaron is 5 years younger then Ron. Four years later, Ron will be twice as old as Aaron. Find their present ages.​
Katyanochek1 [597]

Answer:17

Step-by-step explanation:

tommy  was 14 ten years ago 2times old as ron.14/2=7 . so we add the 10 years ron is 17..c;

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Use the data in LAWSCH85 for this exercise. (i) Using the same model as in Problem 4 in Chapter 3, state and test the null hypot
natka813 [3]

Answer:

Step-by-step explanation:

In the model

Log (salary) = B0 + B1LSAT +B2GPA +B3log(libvol) +B4log(cost)+B5 rank+u

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               Log (salary) =    8.34 +    .0047 LSAT +   .248 GPA +   .095 log(libvol)

                                        (0.53)     (.0040)              (.090)            (.033)

                                         +     .038 log(cost)    – .0033 rank

                                              (.032)                    (.0003)

                   n = 136,    R2 = .842.

The t statistic on rank is –11(i.e. 0.0033/0.0003), which is very significant. If rank decreases by 10 (which is a move up for a law school), median starting salary is predicted to increase by about 3.3%.

(ii) LSAT is not statistically significant (t statistic ≈1.18) but GPA is very significance (t statistic  ≈2.76). The test for joint significance is moot given that GPA is so significant, but for completeness the F statistic is about 9.95 (with 2 and 130 df) and p-value ≈.0001.

6 0
3 years ago
Question 18 of 25<br> What is tan 45°?
Artist 52 [7]

Answer:

Tan 45° = 1.

it is always one.

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