All categories

2 years ago

Heather jogged 5 miles.

Mathematics

2 answers:

True [87]2 years ago

6 0

Answer:

26400 ft.

Step-by-step explanation:

1760 yd x 3 ft. = 5280 ft.

5280 ft. x 5 = 26400 ft.

jonny [76]2 years ago

4 0

Answer:

26400 ft

Step-by-step explanation:

You might be interested in

Five eighths of people you invite to a party show up, as do six people who were not directly invited. If a total of 41 people sh

denpristay [2]

Answer:

yebhrhrbrnrjjrjrjrhhthrjthhthththhththththhthrhththhtyhhrhrhrhhr

3 0

3 years ago

A manager at a local company asked his employees how many times they had given blood in the last year. The results of the survey

Lubov Fominskaja [6]

Answer:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

Step-by-step explanation:

For this case we have the following distribution given:

X 0 1 2 3 4 5 6

P(X) 0.3 0.25 0.2 0.12 0.07 0.04 0.02

For this case we need to find first the expected value given by:

$E(X) = \sum_{i=1}^n X_i P(X_I)$

And replacing we got:

$E(X)= 0*0.3 +1*0.25 +2*0.2 +3*0.12 +4*0.07+ 5*0.04 +6*0.02=1.61$

Now we can find the second moment given by:

$E(X^2) =\sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2)= 0^2*0.3 +1^2*0.25 +2^2*0.2 +3^2*0.12 +4^2*0.07+ 5^2*0.04 +6^2*0.02=4.97$

And the variance would be given by:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

8 0

3 years ago

A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is

dezoksy [38]

The answer is the test contains 10 3pt questions and 14 5 pt questions. Any questions please just ask!!! thank you!

8 0

3 years ago

Read 2 more answers

Solve for x round to the nearest tenth if necessary

mash [69]

tan 39 = x /30

0.809 = x/30

x = 24.29

x = 24.3

7 0

2 years ago

Help Me With This Plz?

levacccp [35]

Answer: #1 Answer is D

Step-by-step explanation: Welcome!

Can I get Brainliest?

5 0

3 years ago

Read 2 more answers