Daniel ate 1/3 of the left over pizza. If there were 2 1/2 pizzas left, how much did Daniel eat?
A dealer dealt the following cards from a shuffled deck: 3 , 2 , 2 , A , K , Q , K , 5 , 2 , 6 4 , 5 , K , 2 , 7 , 6 , A , J , J , A What was the experimental probability of dealing a black card?
Answer:
Total number of cards in shuffled deck=3 , 2 , 2 , A , K , Q , K , 5 , 2 , 6, 4 , 5 , K , 2 , 7 , 6 , A , J , J , A .
Total number of cards in a deck of card = 52 cards, out of which 26 are black cards and 26 are red card.
As, it is not given that out of the 20 cards dealt by dealer is either red card or black card.
A=3=2B +1 R or 1 B + 2 R
2=4=2 R +2 B
3=1=1 R or 1 B
4=1=1R or 1 B
5=2=2 R or 2 B
6=2=2 R or 2 B
7=1=1 R or 1 B
8=0
9=0
10=0
J=2= 2 R or 2 B
K=3= 2 R + 1 B or 1 R +2 B
Q=1=1 R or 1 B
If you count total number of black cards among the number of cards dealt by dealer, the possibilities of black card drawn is either 15 or 16 from 20 cards drawn.
As, Experimental probability is the probability obtained through experiment which is different from theoretical Probability.
Total number of cards =52
So, Probability of dealing with black cards by dealer which is either 15 or 16 in number is given by
[tex]=\frac{\text{total favorable outcome}}{\text{total possible outcome}}\\\\\frac{15}{52} {\text{or}} \frac{16}{52}=\frac{4}{13}.[/tex]
40%
Step-by-step explanation:There are 20 cards in total.
8 are black: 3,2,K,5,6,4,A,J
12 are red: 2,A,K,Q,2,5,K,2,7,6,J,A
so that means 8 of the 20 are black or 8/20
and 8/20 is 40% which is your answer.
HELP PLEASE URGENT NEED TO PASS THIS CLASS
Write a user-defined function that determines the polar y coordinates of a point from the cartesian coordinates in a two-dimensional plane.
Which of the following numbers is the smallest?
4/9
0.44
3/7
400%
Find the area of one segment formed by a square with sides of 6" inscribed in a circle.
(Hint: use the ratio of 1:1: to find the radius of the circle.)
how many times more respondents chose silver than red round to the nearest tenth if necessary silver 0.2 red 0.09
Answer: 2.2
Step-by-step explanation:
Given : Proportion of choosing silver = 0.2 =0.20.
Proportion of choosing red= 0.09
Clearly, 0.20> 0.09
Now, the number of times more respondents chose silver than red will be :-
[tex] n=\dfrac{0.20}{0.09}\\\\=\dfrac{20}{9}\\\\=2.22222\approx2.2\ \text{ Rounded to the nearest tenth}[/tex]
Hence, 2.2 times the respondents chose silver than red.
hannah and anthony are siblings who have ages that are consecutive odd integers. the sum of their ages is 92 . which equations could be used to find hannah's age,h, if she is the older sibling?
Which function has an inverse that is also a function? a {(–1, 3), (0, 4), (1, 14), (5, 6), (7, 2)} b {(–1, 2), (0, 4), (1, 5), (5, 4), (7, 2)} c {(–1, –2), (0, 4), (1, 3), (5, 14), (7, 4)} d {(–1, 4), (0, 4), (1, 2), (5, 3), (7, 1)}
Answer:
Which function has an inverse that is also a function? a {(–1, 3), (0, 4), (1, 14), (5, 6), (7, 2)} b {(–1, 2), (0, 4), (1, 5), (5, 4), (7, 2)} c {(–1, –2), (0, 4), (1, 3), (5, 14), (7, 4)} d {(–1, 4), (0, 4), (1, 2), (5, 3), (7, 1)}
Step-by-step explanation:
It is called the inverse or reciprocal function of f to another function f − 1 that fulfills that:
If f (a) = b, then f − 1 (b) = a.
The inverse of a function when it exists is unique, so that neither "X" nor "Y" can be repeated.
If we analyze the possibilities, in the case of b, c, and d, the value 4 of the "Y" is repeated twice; in the case of a, that does not happen, therefore the answer is: a {(–1, 3), (0, 4), (1, 14), (5, 6), (7, 2) }
A line has a slope of -1/2 and a y-intercept of –2.
what is the x-intercept of the line?
y = (slope)x + (y-intercept)
y = -1/2x - 2
x-intercepts occur when y = 0
0 = -1/2x - 2
2 = -1/2x
x = -4
Thus, the x-intercept is at (-4,0)
What is 32,020.20 rounded to the nearest square mile
Harvey invested $6000 for 2 years in a savings account paying simple interest with a yearly interest rate of 5.5%. How much simple interest did he earn.
Harvey earned a simple interest of $660 over 2 years on his $6000 investment.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Since, We know that;
Simple interest is calculated using the formula:
I = P r t
Where: I = Interest earned P = Principal amount (amount invested) r = Annual interest rate t = Time period (in years)
Now, In this case,
Harvey invested $6000 for 2 years at an annual interest rate of 5.5%.
So, using the formula:
I = 6000 x 0.055 x 2
I = $660
Therefore, Harvey earned a simple interest of $660 over 2 years on his $6000 investment.
Learn more about the multiplication visit:
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can you do it on paper please? that would be helpful.
you could type it in though.
that's ok too.
A building has 4 offices. There are 4 people in each of the offices. Each person has 4 chairs. How many chairs are in the building? Enter your answer in the box.
There are about 4200 college presidents in the United States, and they have annual incomes with a distribution that is skewed instead of being normal. Many different samples of 40 college presidents are randomly selected, and the mean annual income is computed for each sample. What is the approximate shape of the sample means?
Final answer:
The distribution of sample means for college presidents' incomes, based on many different samples of size 40, will approximate a normal distribution due to the Central Limit Theorem.
Explanation:
The question regarding the distribution of sample means for college presidents' incomes pertains to a concept in statistics known as the Central Limit Theorem. When dealing with a population whose distribution is skewed, the distribution of sample means tends to become approximately normal if the sample size is large enough, which is usually considered to be over 30. As multiple samples of size 40 are taken in this case, the distribution of the sample means for the college presidents' annual incomes should approximate a normal distribution.
Which of the following is a measurement of the space between two objects? A. Area B. Pounds C. Circumference D. Miles
Final answer:
The space between two objects is measured as distance or length, with miles being the correct unit of measurement among the given options.
Explanation:
The measurement of the space between two objects is referred to as length or distance. If we look at the options provided: A. Area, B. Pounds, C. Circumference, D. Miles, it is clear that miles is a unit of measurement that describes distance. Area measures the size of a surface, pounds measure weight or mass, and circumference measures the distance around a circle. When considering distances, especially those that are long such as between two cities, miles is an appropriate unit to use. For example, the distance between your house and school would best be measured in kilometers or miles, rather than in smaller units like inches or centimeters, or in unrelated units like pounds or areas.
Given the function f(x) = −2x2 + 4x − 7, find f(−4). −55 −7 9 25
Answer:
Option (a) is correct.
The value of function [tex]f(x) = -2x^2 + 4x- 7[/tex] at x = -4 is -55
Step-by-step explanation:
Given : [tex]f(x) = -2x^2 + 4x- 7[/tex]
We have to find the value at f(-4) and choose the correct option from the given options.
Consider the given function [tex]f(x) = -2x^2 + 4x- 7[/tex]
Since, we have to find the value of f(-4) that is value of f(x) at x = -4
Substitute, value of x = -4 in given function, we have,
[tex]f(-4) = -2(-4)^2 + 4(-4)- 7[/tex]
Simplify, we have,
[tex]f(-4) = -55[/tex]
Thus, the value of function [tex]f(x) = -2x^2 + 4x- 7[/tex] at x = -4 is -55
Option (a) is correct.
What is the property tax of 1.6% on property assessed at $85,000?
1,360
5,312
13,600
53,125
Answer:
$1,360.
Step-by-step explanation:
We are asked to find the amount of property tax at a rate of 1.6% assessed at $85,000.
Let us find 1.6% of 85,000 to find the amount of property tax.
[tex]\text{Amount of property tax}=\frac{1.6}{100}\times 85,000[/tex]
[tex]\text{Amount of property tax}=0.016\times 85,000[/tex]
[tex]\text{Amount of property tax}=1,360[/tex]
Therefore, the property tax will be $1,360 and 1st option is the correct choice.
For the number 4768.325, what is the sum of the tens digit and the tenths digit
Carmen is making 5 parts strawberry juice to 3 parts water. Carmen would like to make 64 fluid ounces of the strawberry drink. How many fluid ounces of strawberry juice and water does Carmen need?
Ok so if she needs 64 floz, If u add 5+3 you get 8. 64/8 = 8
Now You multiply your parts of water and juice by 8.
5*8= 40 <---- Answer
3*8 =24 <----Answer
To check your answer you would add up the parts of each. 40+24= 64
It takes 40 min for a bus to travel the 36 miles from Framingham to Worcester. A car traveling from Worcester to Framingham moves 1.5 times as fast as the bus. If the car and the bus start moving towards each other simultaneously, after how many minutes will they meet?
The velocity of the bus is:
velocity (bus) = 36 miles / 40 min
velocity (bus) = 0.9 miles / min
Since the car is 1.5 times faster, so the velocity of the car is:
velocity (car) = 1.5 * 0.9 miles / min
velocity (car) = 1.35 miles / min
At the meeting point, the sum of the distance is equal to 36 miles. Therefore:
1.35 t + 0.9 t = 36
2.25 t = 36
t = 16 min
So they will meet after 16 minutes.
What is the rate of change of y with respect to x for this function?
HELP FOR BRAINLYEST
at 1:00 pm you have 24 megabytes of a movie. at 1:15 pm you have 96 megabytes what is the download rate in megabytes per minute
I need help someone explain?????
Find the measures of two angles, one positive and one negative, that are coterminal with pi divided by five.
WILL GIVE BRAINEST
Identify one characteristic of exponential decay.
Answer: A
Step-by-step explanation:
How many boxes of carrots are left? 75 boxes − 68 boxes = 7 boxes
The question pertains to a basic subtraction operation where the student is left with 7 boxes of carrots after subtracting 68 boxes from an initial count of 75 boxes.
The subject of the question is mathematics, specifically involving subtraction and the concept of determining the number of items remaining after a reduction. The mathematical operation presented in the question is 75 boxes - 68 boxes = 7 boxes, which indicates that when you start with 75 boxes of carrots and remove 68 boxes, you are left with 7 boxes of carrots.
This type of problem is common in elementary mathematics and does not involve complex concepts such as permutations, probability, or statistical distributions.
Find the point p where the line x = 1 + t, y = 2t, z = -3t intersects the plane x + y - z = 3.
Monique Fournier deposited $12,500 into a savings account paying 6.5% annual interest compounded monthly. What amount will she have in her account after 3 years? How much compound interest will she have earned?
Explaining the calculation of the amount in the account after 3 years and the compound interest earned.
Amount in the account after 3 years:
Calculate the monthly interest rate: 6.5% annual interest divided by 12 (months) = 0.0054167
Calculate the total amount using the compound interest formula: $12,500 * (1 + 0.0054167)^36 = $15,183.41
Compound interest earned:
Subtract the initial deposit from the total amount: $15,183.41 - $12,500 = $2,683.41
a rectangular flower garden has area of 32 square feet. if the width of the garden is 4 feet less than the length, what is the perimeter, in feet, of the garden?
To find the perimeter of the rectangular flower garden, we first need to find its dimensions. Once we have the length and width, we can calculate the perimeter by using the formula: P = 2(length + width). Therefore, the perimeter of the garden is 4x - 8 feet.
Explanation:To find the perimeter of the rectangular flower garden, we first need to find its dimensions. Let's use x to represent the length of the garden.
According to the problem, the width of the garden is 4 feet less than the length, so the width would be x - 4.
The area of the garden is 32 square feet, so we can set up the equation: x * (x - 4) = 32.
We can solve this equation by factoring or by using the quadratic formula to find the length.
Once we have the length and width, we can calculate the perimeter by using the formula: P = 2(length + width).
Substituting the values, we get P = 2(x + x - 4), which simplifies to P = 4x - 8.
Therefore, the perimeter of the garden is 4x - 8 feet.