Answers
Answer:
2.12%
Step-by-step explanation: So in a 52 card deck, there are 13 hearts, so our probability of drawing a heart on the first try is 13/52, but this 3 decks, so you pretty much just add
Answer:
1.56%
Step-by-step explanation:
there 52 cards in a deck and 13 of those are hearts. 13/52*13/52*13/52 That equals 2,197/140,608. Then divide both by 2,197 and you get 1/64. Turn it into a percent and it's 1.56%
13/52 is also 25% so you could do 25% * 25% * 25% and you get .015625 and move the decimal two places to turn it into a percent 01.5625%
Related Questions
James m
Lou 2 m
Rob 3 m
Teri 4 m
Shawn 4 m
Skip 3 m
Art 2 m
Jim m
Eight students in a small class made the test scores shown in the table. What was the mean absolute deviation for the class?
A) m
B) 2.5m
C) 4m
D) 8m
Answers
Answer:
A) = m
Step-by-step explanation:
THIS IS WORTH 100 POINTS!!!!
Answers
Answers:
0.68 times 0.921 (less)
29.77 times 5.021 (greater)
0.5 times 0.078 (less)
870 times 1.008 (greater)
0.4 times 1.49 (greater)
Hope this helps and please mark brainliest!
Answer:
yyyyyyyy
Step-by-step explanation:
thx tx htx
Suppose the mean income of firms in the industry for a year is 90 million dollars with a standard deviation of 15 million dollars. If incomes for the industry are distributed normally, what is the probability that a randomly selected firm will earn less than 109 million dollars? Round your answer to four decimal places.
Answers
Answer:
0.8980 = 89.80% probability that a randomly selected firm will earn less than 109 million dollars
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Distributed normally, mean of 90 million, standard deviation of 15 million.
This means that [tex]\mu = 90, \sigma = 15[/tex]
What is the probability that a randomly selected firm will earn less than 109 million dollars?
This is the pvalue of Z when X = 109. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{109 - 90}{15}[/tex]
[tex]Z = 1.27[/tex]
[tex]Z = 1.27[/tex] has a pvalue of 0.8980
0.8980 = 89.80% probability that a randomly selected firm will earn less than 109 million dollars
Which function is the inverse of f(x) = -5x - 4
Answers
Answer:
f-¹(x) = -⅕x - ⅘
Step-by-step explanation:
f(x) = -5x - 4 → x = -5y - 4 → 5y = - x - 4 → y = -⅕x - ⅘ → f-¹(x) = -⅕x - ⅘
Solve for the value of x and y
5y 2x 40
Answers
Answer:
x=25 =18
Step-by-step explanation:
Right angle =90°
you are given 40, therefore 2x has to equal up to 50.
2x=50 divide both sides by 2
x=25
straight line=180°
you are given 90, therefore 5y has to equal to 90.
5y=90
divide both sides by 5
y=18
Y is equal to 18
Noah is going to invest in an account paying an interest rate of 3.7% compounded annually. How much would Noah need to invest, to the nearest hundred dollars, for the value of the account to reach $1,110 in 13 years?
Answers
Answer:700
Step-by-step explanation:
Complete the following statement. Round your answer to the nearest cent.
5% of $585.26 = $
Answers
Find the solution of the system of equations.
x+3y= −10
9x+9y= −18
Answers
Answer:
x = 2, y = -4
Step-by-step explanation:
Answer:
Substitution method answer: x=2, y=-4 (2,-4)
Step-by-step explanation:
PLEASE DO AS MUCH AS YOU CAN! THANKS!
Answers
Answer:
1. 2x+20
2. 8x-40
3. 7x+21
4. 8x-4
5. 15x+5
6. 12x+15
7. 20x-50
8. 21x+14
9. 24x-6
10. 45x-18
11. 18x-8
12. 30x+9
Explanation: Distributive Property
Evaluate the expression: 2 ⋅ 6^2 *
Answers
Thank you hope this helps
Answer:
72
Step-by-step explanation:
First square 6.
6^2=36
Then multiply 26 by 2.
2*36=72
Nathan inherited $100,000 from a wealthy uncle and invested the money in an account that earns 4% interest compounded annually.
How much interest will this money earn if Nathan leaves it in the account for 10 years?
Answers
A cookie jar contains 3 vanilla, 2 chocolate chip, and 7 gingersnap cookies. If one cookie is taken at random from the jar, what is the probability that it will be a vanilla cookie?
Answers
Answer:
3/12= 1/4
Step-by-step explanation: because you would add the all up for 12 and you have a 3 vanilla's so 3/12= 1/4
Solve the inequality.
-7/8 < m - 13/8
Answers
Answer:
m>3/4
Step-by-step explanation:
Add -13/8 to both sides:
6/8<m
Simplify:
m>3/4
Jay has 6,200 beads. He is making bracelets with 9 beads each. How many bracelets can he make? How many beads will be left?
Answers
Answer: He can make 688 beads, and 8 beads will be left.
Step-by-step explanation:
First, you need to divide 6,200 by 9.
6,200 ÷ 9 = 688 R8.
688 will be the number of bracelets he can make, and the remainder, 8, will be the leftover beads because he doesn't have enough to make another bracelet.
For the labels, it says, "How many bracelets can he make?" and," How many beads will be left?"
The answers will be: 688 bracelets;8beads
Equation : 6,200÷9=x 6,200÷9=688 R8 x=688 bracelets;8 beads
taka is playing a game of darts. she scores 52 points. in the game she is playing, she gets a -3 score each time she misses the board. her final point total is 37. write and solve an equation to find out how many times she missed the board
Answers
Answer:
5
Step-by-step explanation:
52-37 is 15 . divide by 3 and u get five
what is 9 (4x^2 - 3) simplified?
Answers
Answer:
144x - 27
Step-by-step explanation:
9 (4x² - 3)
9 (16x - 3)
144x - 27
A rectangular pool is drained of water until it is only half full.
If the length of the pool is 5.5m,
the breadth is 12m and the height is 18m, find the volume of water drained in liters.
Answers
Answer:
[tex]Volume = 594m^3[/tex]
Step-by-step explanation:
Given
[tex]Length = 5.5m[/tex]
[tex]Breadth = 12m[/tex]
[tex]Height =18m[/tex]
Required
The volume when it is half full
The height, when half full is:
[tex]h = 0.5 *Height[/tex]
[tex]h = 0.5 *18m[/tex]
[tex]h = 9m[/tex]
So:
The volume is:
[tex]Volume = Length * Breadth*h[/tex]
[tex]Volume = 5.5m * 12m * 9m[/tex]
[tex]Volume = 594m^3[/tex]
Oldwick High School has a population of 2345
students. A survey showed that 34% of the student
population would like to have hamburgers as a
daily choice for lunch. Which of the following is
closest to 34% of the student population?
A.340 students
B.800 students
C.1,200 students
D.1600 students
Answers
Answer:
B
Step-by-step explanation:
To find your answer, simply multiply 2345 by 0.34. As 34% in decimal form is 0.34 and to find the percentage of a number, you must multiply the number with the percentage. When you do so, you get 797.3 exactly which is closest to 800 students, resulting in B being the answer. PS. Hamburgers every day would be disgusting and boring!!!!
If you roll a 6 sided die 12 times what is the best prediction possible for the number of times you will roll a four Hint: Use proportional reasoning
Answers
Answer:
the probability would be a 1/3 or a 1/6 chance i think
Can someone help me with this question pls
Answers
Answer:1/6*1/6*1/6=1/216
Step-by-step explanation:
Enter the number that makes the equation true
0.02 + 5/100= ______ / 100 + 5/100
Answers
Answer:
2
Step-by-step explanation:
0.02 = 2/100 so the answer is 2
These are numbers that cannot be written as fractions, numbers with decimals that do not end or repeat. Example: π, 2.345643.....,
Answers
Answer:
These types of numbers are commonly referred to as "irrational numbers".
Step-by-step explanation:
please help i d don't know i would really appreciate your help
Answers
Answer:
45
Step-by-step explanation:
hello there!
Remember all of the angles in a triangle will add up to equal 180 so to find the missing angle we subtract the given angles from 180
180 - 90 - 45 = 45 so the missing angle would equal 45
What is 3000×3000 4000
Answers
Answer:
I think the answer is 12,0000
Answer:
3000x3000=9,000,000
Step-by-step explanation:
3x3x1,000,000
Solve the right triangle
Round your answer to the nearest tenth
Answers
Answer:
B = 40°
a = 23.0
b = 19.3
Step-by-step explanation:
✔️B = 180° - (90° + 50°) => sum of triangle
B = 40°
✔️Reference angle = 50°
Opp = a
Hypotenuse = 30
Adjacent = b
Find a by applying the trigonometric function, SOH:
Sin 50 = Opp/Hyp
Sin 50 = a/30
30 × Sin 50 = a
23.0 = a
a = 23.0 (nearest tenth)
To find b, apply CAH:
Cos 50 = Adj/Hyp
Cos 50 = b/30
30 × Cos 50 = b
b = 19.3 (nearest tenth)
A: 49
B: 33
C: 57
D: 16
Answers
Answer:
d
Step-by-step explanation:
i believe its 49 - 33= answer bc 49=49
Answer:
16°
Step-by-step explanation:
The two angles are vertical, meaning that they are the same
33 + 16 = 49
altitudes of right triangle
Answers
6. 10-2 is how many times as large as 2 . 10-8?
Answers
Answer:
105 I think i might have did it wrong
Step-by-step explanation:
3.25 ÷ 10. 2) 685.34 ÷ 102. 3) 87 * 105.
With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the entire batch is accepted if every item in the sample is okay. The ABC Electronics Company has just manufactured 2100 write-rewrite CDs, and 60 are defective. If 3 of these CDs are randomly selected for testing, what is the probability that the entire batch will be accepted
Answers
Answer:
0.9167 = 91.67% probability that the entire batch will be accepted
Step-by-step explanation:
The CDs are chosen without replacement, which means that the hypergeometric distribution is used.
Hypergeometric distribution:
The probability of x sucesses is given by the following formula:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]
In which:
x is the number of sucesses.
N is the size of the population.
n is the size of the sample.
k is the total number of desired outcomes.
Combinations formula:
[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
2100 write-rewrite CDs, and 60 are defective.
This means, respectively, that [tex]N = 2100, k = 60[/tex]
3 of these CDs are randomly selected for testing
This means that [tex]n = 3[/tex]
What is the probability that the entire batch will be accepted?
Probability of none defective, so P(X = 0).
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]P(X = 0) = h(0,2100,3,60) = \frac{C_{60,0}*C_{2040,3}}{C_{2100,3}} = 0.9167[/tex]
0.9167 = 91.67% probability that the entire batch will be accepted
Which of the following is the correct Pythagorean Formula?
a? – 62 + c = 0
a² + 6² = ²
6² + c = a²
a + b = c