2,686 Answered Questions for the topic SAT math

04/15/20

The following is the probability distribution for the number of daily requests a health secretary receives for a health clearance.
Find the expected daily number of health clearance requests and the standard deviation of the daily number health clearance requests.NUMBER OF REQUESTS ----- PROBABILITY0 ... more
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04/14/20

statistics help
Assume that when adults with smartphones are randomly​ selected, 49​% use them in meetings or classes. If 7 adult smartphone users are randomly​ selected, find the probability that at least 5 of... more
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Sat Math Math Act Math Maths

04/14/20

Math question please answer full details
A small plot of land is used for a Garden. It has a length of "x" ft., and a width that is 40ft less than its length. A farmer will only use the land if it's area measures 2100 square feet. What... more
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Sat Math Math Mathematics

04/13/20

need helpppppp pleasee
Maria bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $400 more than the desktop. She paid for the computers using two different financing plans. For the... more
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Sat Math Math Mathematics

04/13/20

helpppppppppppppp
The sum of three numbers is 117 The second number is 4 times the third. The third number is 9 more than the first. What are the numbers? First number: Second number: Third number:
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Sat Math Math Mathematics

04/13/20

need the answer pleasee
Joe's final exam has true/false questions, worth 2 points each, and multiple choice questions, worth 5 points each. Let x be the number of true/false questions he gets correct, and let y be the... more
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04/12/20

Consider the random experiment of tossing a fair coin three times. Let X be the random variable representing the number of heads that will come out.
a. Construct the probability distribution associated to the given situation.b. Represent the probability distribution in a) graphically.c. Compute for the E[X] and Var[[X].
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Sat Math Math Probability Sat

04/12/20

Probability Homework Help
A six sided dice and 20 sided dice are rolled.Let event A be rolling and odd number, and event B be rolling a multiples of 4 on the 20 sided dice.Determine P(A∩B)Choices:-1/120-7/10-1/20-1/10
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Sat Math Math Probability

04/11/20

Probability Homework
The Probability of Mary passing the Math diploma is 5/8. The probability of Mary passing the Math and English diploma is 7/16. If the probabilities of passing either diploma exam are independent,... more
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Sat Math Math Probability

04/11/20

Probability Homework Practice
A box of 50 candy bars contains 15 coffee Crisp, 15 Kit Kat, 10 aero, and 10 smarties. Two candy bars are chosen at random, one at a time without replacement. What is the probability that both... more
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04/11/20

The winner of a tennis tournament gets $40,000 and the runner-up gets $15,000. What are the two finalists’ mathematical expectations if
a. they are evenly matched? b. their probabilities of winning are 0.65 and 0.35?
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04/11/20

The following is the probability distribution for the number of daily requests a health secretary receives for a health clearance.

Find the expected daily number of health clearance requests and the standard deviation of the daily number health clearance requests.NUMBER OF REQUESTS ----- PROBABILITY0 ... more
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Expert Answers •2

04/11/20

In a certain school, 200 students were surveyed regarding the number of hours they spend on Facebook daily. The results are as follows:
NUMBER OF HOURS (X) ----- NUMBER OF STUDENTS0 301 452 ... more
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04/11/20

Consider the random experiment of tossing a fair coin three times. Let X be the random variable representing the number of heads that will come out.

a. Construct the probability distribution associated to the given situation. b. Represent the probability distribution in a) graphically. c. Compute for the E[X] and Var[[X].
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Expert Answers •1
Sat Math Math Math Mathematics

04/10/20

helppp meeee this is my last question
A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000lower than in the first. The tax in the first city was 4% , and the tax in the second city... more
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Sat Math Math Mathematics

04/10/20

help needed on tax question
A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000lower than in the first. The tax in the first city was 4% , and the tax in the second city... more
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Sat Math Math Mathematics

04/10/20

help me please in danger of staying back :(
A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000lower than in the first. The tax in the first city was 4% , and the tax in the second city... more
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Sat Math Math Mathematics

04/10/20

Help me please im having alot of trouble
Jina bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $200 more than the desktop. She paid for the computers using two different financing plans. For the... more
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Sat Math Math

04/10/20

Please help me im in danger of staying back :(
A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 20% salt and Solution B is 45% salt. She wants to obtain 40  ounces... more
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Sat Math Math Mathematics

04/10/20

i need lots of helpp
Last year, Raina had $10,000  to invest. She invested some of it in an account that paid 9% simple interest per year, and she invested the rest in an account that paid 8% simple interest per year.... more
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Sat Math Mathematics

04/10/20

need help i dont wanna stay back lol
A chemical company makes two brands of antifreeze. The first brand is 55% pure antifreeze, and the second brand is 80% pure antifreeze. In order to obtain 140 gallons of a mixture that... more
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Sat Math

04/09/20

Math problem is
Seth had 3 action figures,but needed 12 total for a complete collection. if each one cost 2$ how much would he need to finish his collection
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04/09/20

Parabola Question
How do I find the equation of this parabola y = ax2 + bx + cthat passes through the following points: (0,3), (1,4), (2,3) ?
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04/08/20

Question about combinatorics
How many ways to arrange numbers 2,5,6,0,1 to get an odd three digit number where all digits are different? How many ways there are to construct a five digit number, divisible by 2, with all... more
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04/07/20

What kind of transformation converts the graph of f(x)=|x|+9 into the graph of g(x)=4|x|+9?
There is only one correct answer. The answer options are..Horizontal stretchvertical stretchhorizontal shrinkvertical shrinkits asking which one of these transformations/dilations makes the first... more
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