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2 years ago

If you walk 5/12 in 1/2 hour how dar will you walk in 1 hour

Mathematics

2 answers:

Semenov [28]2 years ago

4 0

Answer:

5/6

Step-by-step explanation:

If 5/12 equals 1/2, then you multiply 5 and 2. You keep the denominator the same because you are adding. So you get 10/12 and then you simplify and you get 5/6.

riadik2000 [5.3K]2 years ago

3 0

Answer:

10/12 or 5/6

Step-by-step explanation:

1/2 + 1/2 = 1

5/12 + 5/12 = 10/12 or 5/6

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Hi please HELP ME I really need it

earnstyle [38]

Answer:

? = 14

Step-by-step explanation:

let us say that ? = x

7^x * 7^5^4 = 7^34

When you have a power to a power you multiply

7^x * 7^20 = 7^34

when you multiply common bases you add the power. since all the bases aer the same just look at the power

7^34-20 = 7^x

7^14 = 7^x

6 0

3 years ago

A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the following

GenaCL600 [577]

Answer: a. The correlation coefficient of the data is positive.

Step-by-step explanation:

Estimated slope of sample regression line = $\dfrac{Upper \ limit + lower\ limit}{2}$

Here , confidence interval : (-0.181, 1.529)

Estimated slope of sample regression line = $\dfrac{-0.181+1.529}{2}$

$=\dfrac{1.348}{2}\\\\=0.674\ \ \ \ [\text{ positive}]$

⇒Correlation coefficient(r) must be positive, So a. is true.

But, d. and e. are wrong(0.674 ≠ 0 or 1.348).

We cannot check residuals or its sum from confidence interval of slope of a regression line, so b is wrong.

We cannot say that scatterplot is linear as we cannot determine it from interval, so c. is wrong

So, the correct option : a. The correlation coefficient of the data is positive.

7 0

3 years ago

Given cos x=0.4762,find the degree measure of x.round your answer to the nearest tenth

alex41 [277]

If you have a calculator, you can use the inverse cos " cos⁻¹ " key. Many upper level books write that as Arccos so as not to confuse you with a negative exponent. We do that because if you take the cosine of any angle, and then the inverse cosine of any angle, it leads you back to the original angle. Think of it as a big "UNDO" button.

To one decimal place, that result is 61.6 degrees.

5 0

3 years ago

(QUICK DUE IN 50 MINUTES)

nevsk [136]

Slope =2/3
70,80) (10,40)
(80-40)/(70-10) = 40/60
4/6
2/3

8 0

3 years ago

Find the distance between the points (6,1) and (9,5)

Sergio [31]

square root of (9-6)^2 +(5-1)^2 = 5

the distance is 5 units