MATHEMATICS HIGH SCHOOL

Which of the following is a binomial experiment?A survey asking 75 people to name their favorite color

A survey asking 75 people to give their age

A survey asking 75 people whom they voted for in the election

A survey asking 75 people if they like the new school building

Answers

Answer 1
Answer: A survey asking 75 people if they like the new school building. This is a binomial experiment.

A binomial experiment is called as such when it satisfies these 4 conditions.
1) There is a fixed number of trials. = 75 people
2) Each trial is independent of each other = own opinion
3) There are only two outcome = YES or NO
4) The probability of each outcome remains constant from trial to trial = 50 - 50
Answer 2
Answer:

Answer:

the answer is D on edge

Step-by-step explanation:

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A motor with an efficiency of 75 percent must supply 240 j of useful work. What amount of work must be supplied to the motor.
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This list shows how many hours twenty batteries lasted when they ran continually in a flashlight. 78 31 47 51 16 58 60 10 30 40 46 63 65 10 93 22 13 47 64 93 What is the mean, median, and mode of the battery life data?a. mean: 47 median: 46.85 mode: 10, 47, 93c. mean: 46.85 median: 47 mode: noneb. mean: 46.85 median: 47 mode: 10, 47, 93d. mean: 47 median: 46.85 mode: none

How do I evaluate x+y=10

Answers

Hi there! Evaluate means to solve so we are going to solve x+y=10. Add both sides to -y, x+y+-y=10+-y=X=-y+10. Therefore, the answer is x=-y+10

Xsquared + 3x - 5 solved using the quadratic formula

Answers

x^2+3x-5=0\na=1;\ b=3;\ c=-5\n\n x=(-b^+_-√(b^2-4ac))/(2a)\n\nx=(-3+√(3^2-4\cdot1\cdot(-5)))/(2\cdot1)\quad\vee\quad x=(-3-√(3^2-4\cdot1\cdot(-5)))/(2)\n\nx=(-3+√(9+20))/(2)\quad\vee\quad x=(-3-√(9+20))/(2)\n\nx=(-3+√(29))/(2)\quad\vee\quad x=(-3-√(29))/(2) \n\nx\approx1.19\quad\vee\quad x\approx-4.19

How do you round 1945 to the nearest hundred

Answers

Rounding 1945 to the nearest hundred would be 2000. 1-4 you would round downward for instance if the number was 1004 you would round down to 1000. But, since the number is greater then 1-4 you raise it so, you anwser would be 2000

Yusuf bought a DVD player for $280, now it is $220. What is the percent decrease in the price?​

Answers

60 % because 280-220 gets you 60%

Answer:

About 21.4%

Step-by-step explanation:

280 - 220 = 60

60 of 280 = ?

Variable x = percentage

60/280 = x/100

Cross multiply

60 × 100 = 280 × x

6000 = 280x

Divide both sides by 280

6000 ÷ 280 = 280x ÷ 280

21.428.... = x

About 21.4%

Check work:

60/280 = 21.4/100

Cross multiply

60 × 100 = 280 × 21.4

6000 = 5992

6000 is close to 5992

It does not equal exactly 6000 because I estimated the percentage to 21.4% instead of 21.428....%

A mixture of 30 pounds of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of the $1.50 chocolate were used to make the mixture?A)15
B)10
C)12

Answers

x-chocolate\ worth\ 1,50\$ \ per\ pound\n y-chocolate\ worth\ 0,9\$\ per\ pound\n \n\n \left \{ {{x+y=30} \atop {30*1,10=x*1,50+y*0,9}} \right.\n\n \left \{ {{x=30-y} \atop {33=1,5x+0,9y}} \right. \n\n Using \ substitution\ method:\n\n33=1,5(30-y)+0,9y\n\n 33=45-1,5y+0,9y\n\n -12=-0,6y\ |:-0,6\n\n y=20\n x=10

What do the letters CLU stand for in relation to an insurance agent

Answers

Chartered Life Underwriter :)
CLU stands for Chartered Life Underwriter. It's one of the top three designations to understanding a client's situation along with CFP and ChFC. It includes five required courses: Fundamentals of Insurance Planning, Life Insurance Law, Individual Life Insurance, Fundamentals of Estate Planning, and Planning for Business Owners and Professionals
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