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The random variable X has mean 12 and standard deviation 3. The random variable W is defined as W = 7+2X. What are the mean and standard deviation of W? A. The mean is 24, and the standard deviation is
answered
Apr 30, 2022
Mathematics
college
3
votes
163k
views
2/4th of the area was occupied by Himalayan panda, 1/6th by Giant Panda and 2/12th by Albino panda and remaining area by brown Panda. What is the brown panda's area
answered
Apr 27, 2022
Mathematics
high-school
13
votes
62.4k
views
Find the total surface area.
answered
Apr 19, 2022
Mathematics
high-school
4
votes
152k
views
A local car dealer has 250 cars on the lot. 30% of the cars are SUVs. How many of the cars are NOT SUVs? giving extra points
answered
Mar 9, 2022
Mathematics
high-school
8
votes
89.9k
views
How do molecules move through the ecosystem?
answered
Feb 7, 2022
Biology
college
7
votes
145k
views
Many exergonic reactions fail to happen at a reasonable rate (e.g. conversion of diamonds to charcoal). This is due to the fact that their activation energy may be too high to overcome. Which of the following
answered
Dec 29, 2021
Biology
college
4
votes
44.2k
views
A fish tank measures 40 cm by 25 cm by 24 cm. It is filled with water from a tap. The fish tank is 5/8 full in 6 minutes. Find the volume of water that flows from the tap each minute
answered
Nov 13, 2021
Mathematics
high-school
3
votes
169k
views
Match the synonyms to the underlined words in these sentences from Jack London's "Up the slide."
answered
Oct 24, 2021
English
high-school
5
votes
183k
views
Find x and y intercept and graph -3 + 2y = -5
answered
Oct 20, 2021
Mathematics
high-school
4
votes
196k
views
A mixture of 1080g of gravel with effective absorption of 0.9% and 720g of sand with surface moisture of 2.51% was added to concrete mix. Determine the adjustments that must be made to the added water
answered
Oct 11, 2021
Engineering
college
6
votes
103k
views
Original Tv cost 700 Current Tv cost 500 find the percent of decrease
answered
Jul 19, 2021
Mathematics
high-school
4
votes
42.0k
views
How would you describe the memory The Giver transmits (sends) to Jonas?
answered
Jul 7, 2021
English
high-school
4
votes
102k
views
What are demand characteristics? How can they undermine the results of an experiment?
answered
Feb 23, 2021
Social Studies
college
6
votes
97.8k
views
At a certain location, wind is blowing steadily at 9 m/s. Determine the mechanical energy of air per unit mass and the power generation potential of a wind turbine with 80-m-diameter blades at that location.
answered
Sep 13, 2020
Physics
high-school
4
votes
235k
views
From the artcle, the cost for general admission for an adult to the zoo is A.5.00 B. 7.50 C. Free D. Not enough information
answered
Aug 21, 2020
English
middle-school
5
votes
225k
views
Consider a sequence given by the formula f(n) = 1 / 3 ^ n−1 starting with n = 1. Generate the first 5 terms of the sequence.
answered
Jun 6, 2020
Mathematics
high-school
4
votes
12.5k
views
Galena is solving the following system. 3x+2y+3z =5 7x+y +7z=-1 4x-4y-z=-3 Step 1 she multiplies equation (3) by 3 and adds it to equation (1) Step 2 She multiplies equation (3) by -7 and adds it to equation
answered
Jun 1, 2020
Mathematics
middle-school
3
votes
92.1k
views
Rescuers may not immediately begin CPR upon finding an unresponsive child because
answered
May 16, 2020
Medicine
middle-school
6
votes
169k
views
Which two factors caused many Americans to migrate to the west in the mid-nineteenth century? 1. The Texas revolution 2. Discovery of gold at Sutters Mill 3. The Mexican-American War 4. An interest in
answered
May 2, 2020
History
middle-school
2
votes
110k
views
Simplify by using fractional exponents sqrt mn
answered
Oct 15, 2019
Mathematics
college
3
votes
45.3k
views
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