10/15/22
What is the standard deviation of the distribution of all possible sample means?
The mean test score for all students in Math221 was 80 with a standard deviation of 14. If we took a random sample of 24 test scores, what is the standard deviation of the distribution of all...
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10/15/22
I need help with my math hwk
f(x)= -2(x+1/2)^2 (x+8)^3(d) Type the power function that the graph of f resembles for large values of |x|.y=_______?
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10/16/22
Algebra 2(Math question)
The trinomial 2x2+ 9x +9 has a coefficient greater than 1. Why do you multiply The coefficient 2 with the last term 9 to get 18 and then let the sum be 9 which is the middle term? What is the...
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10/16/22
Can someone please help with my Quadratic Functions homework in Math?
NASA launches a rocket at t=0 seconds. Its height, in meters above sea level, as a function of time is given by h(t) = −4.9t^2 + 241t + 402 Assuming that the rocket will splash down into the ocean,...
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10/16/22
Math Word Problem dealing with Proportions.
Sally bought 500 glucose test strips to last for three months. She tests her blood sugar three times a day. The glucose test strips company offers a refund policy as long as the quantity of...
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10/16/22
Prove the following Identities(Discrete math Fibonnacci Sequence Question)
First question:F02+F12+F22+...+Fn2=Fn*Fn+1Second question:Fn-1*Fn+1-Fn2=(-1)nThird QuestionChoose an integer uniformly from the set {1,2,3,...,30}. Let A be the event that it is divisible by 2; let...
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10/17/22
need help in math
Linda drove 129.8 miles on Monday. On Tuesday, she had to drive 198.23 miles. How much farther did she drive on Tuesday than on Monday?
10/17/22
math for me to be smart
Suppose that an individual has a body fat percentage of 18.1% and weighs 131 pounds. How many pounds of her weight is made up of fat? Round your answer to the nearest tenth
10/17/22
Help me with math
Michael will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $53 and costs an additional$0.11 per mile driven. The second plan has an initial fee of...
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10/18/22
How to solve this math question?
How to solve this calculation and determine from the result whether it is positive or negative?ab-a2-b2Thank you!
10/18/22
How to solve this math question?
How to solve this calculation and determine from the result whether it is positive or negative?ab-a2-b2Thank you!
10/18/22
math work Oct 2022
Tia bought a pair of jeans that were originally $34.95, and there is a 30% discount. What is the DISCOUNT Tia received on the jeans?
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10/18/22
CONSUMER MATH HELP
find the registration fee for a car weighing 2,350 pounds if the rate is $25 for the first 1,900 pounds plus $.75 for every hundred pounds or fraction of hundred pounds in excess of 1,900.
10/18/22
Math question im having trouble with
QuestionTrain A and train B leave a central station at the same time. They travel the same speed, but in opposite directions, with train A heading towards station A, and train B heading towards...
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10/19/22
Statistics math
After giving a test to a group of students, below is the summary of grades and gender.
A
B
C
Total
Male
8
9
16
33
Female
10
20
19
49
Total
18
29
35
82
If a student is randomly chosen,...
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10/19/22
Math Whole numbers and integers
In 8 days, a group of workers can plant 32 acres. What is their rate in acres per day.
10/19/22
math functions 8th grade
Terry and Shaquan went to the fair. The cost to get into the fair is $5 and food and ride tickets cost $0.50 each. The equation y=.5x+5 represents this function where y is the total cost and x is...
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10/19/22
math functions 8th grade
Terry and Shaquan went to the fair. The cost to get into the fair is $5 and food and ride tickets cost $0.50 each. The equation y=.5x+5 represents this function where y is the total cost and x is...
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10/19/22
math question please
a coin was sold for $266 in 1975 and was sold again in 1985 for $472. find the value of k of the exponential growth rate assume V=266
10/20/22
Surface area (super easy 8th grade math)
a box is 5ft long 4ft wide and 3ft high is being gift wrapped. if wrapping costs 5 cents per square foot, how much does it cost to wrap the box?
10/20/22
Middle School Math - Easy
Two trains leave the same station, each 40 minutes apart. Train X leaves first at 9:45 am and heads west at a speed of 144 km/h. Train Y leaves at noon and travels directly east at a speed of 165...
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10/20/22
Middle School Math - Easy
Two trains leave the same station, each 40 minutes apart. Train X leaves first at 9:45 am and heads west at a speed of 144 km/h. Train Y leaves at noon and travels directly east at a speed of 165...
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