Answer:
[tex](xy)^{7}[/tex]
↓
[tex]x^{7} y^{7}[/tex]
So the answer is [tex]x^{7} y^{7}[/tex].
How many combinations with repetition are allowed if n = 4 and r = 3
a. 20
b. 10
c. 27
d. 9
The number of combinations with repetition that are allowed if n = 4 and r = 3 is given by: Option A: 20
How many k-element combinations of n objects, with repetition can be formed?The number of k-element combinations of n objects, with repetition is:
[tex]\overline{C}_{n,k} = \: ^{n + k-1}C_{k} = \dfrac{(n+k-1)!}{k! \times (n-1)!}[/tex]
For this case, we're given that:
n = 4k = 3 (the question uses the notation 'r' instead of 'k')Thus, we get:
[tex]\overline{C}_{n,k} = \dfrac{(n+k-1)!}{k! \times (n-1)!} = \dfrac{(4+3-1)!}{3! \times (4-1)!} \\\\\overline{C}_{n,k} = \dfrac{6!}{3!. 3!} = 20[/tex]
Thus, the number of combinations with repetition that are allowed if n = 4 and r = 3 is given by: Option A: 20
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can someone help me with 23-26?
Answer:
check the explaination :) hope this helped
Step-by-step explanation:
V of large cone = 1107 π m^3
V of small cone = 405 π m^3
Total V = 1512 π m^3
Need Help asap,No links
The points were scored on a math quiz 19 25 21 22 20 26 26 17 Find the Mode______ I got No Idea on this one So can i get some help with it please?
26
Step-by-step explanation:
Mode is a number or data in a set of data values with the highest frequency( the amount of times it appears)
Since 26 appears twice while others appear once, 26 is the mode
Find the values of both x and y
Answer:
Step-by-step explanation:
c
How do you factor (2x^2+2)
Answer:
You factor that equation by seeing if you can take out anything. Example.
20 is the same as 2 times 2 times 5. Visualized, it is 2(10) or 4(5).
For this, you can take out the "2"
So it would be
2(x^2+1)
x^2+1 can't be factored so that is the final answer
If 6 pounds of grass seed cover 399 square feet, how many pounds are needed for 6384 square feet?
Answer:
im not 100% sure but i think its 24lbs of grass seed
Step-by-step explanation:
6 devided by 399 squared=0.0000376882
0.0000376882 x 6384=0.24060150375
0.24060150375 x 100=
24 lbs to cover a area of 6384 square feet
Use a ratio box to solve this problem. The ratio of red apples to green
apples in the basket was 5 to 2. If there were 70 apples in the basket,
how many of them were red?
The number of apples that are red is 50
Calculating ratioFrom the question, we are to determine the number of apples that are red
From the given information,
The ratio of red apples to green apples is 5:2
∴ Sum of ratio = 5+2 = 7
and
Total number of apples in the basket = 70 apples
Then, the number of apples that are red is
[tex]\frac{5}{7} \times 70[/tex] apples
= 5 × 10
= 50 apples
Hence, the number of apples that are red is 50
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Then, answer Part B. A number cube that has sides numbered 1 through 6 is rolled 180 times. Part A How many times would you expect the result to be an even number greater than 2? Write the answer in the box. times Part B How many times would you expect the result to be a number less than 6? Write the answer in the box. times
Using the binomial distribution, it is found that the expected values are given by:
a) 120.
b) 150.
What is the binomial probability distribution?It is the probability of exactly x successes on n repeated trials, with p probability of a success on each trial.
The expected value of the binomial distribution is:
E(X) = np
In this problem, for both items, we consider that the number cube is rolled 180 times, hence n = 180.
Item a:
4 of the 6 possible values are greater than 2, hence p = 4/6 = 2/3.
The expected value is given by:
E(X) = 180 x 2/3 = 120.
Item b:
5 of the 6 values are less than 6, hence p = 5/6.
The expected value is given by:
E(X) = 180 x 5/6 = 150.
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If the area of the green triangle is 10.5 cm?, what is the area of the parallelogram?
Will mark brainlyest!!
Answer:
The answer is 21
Step-by-step explanation:
The parallelogram is divided into two congruent traigle so the area of green traigle is equal to area of blue traigle the sum of area of both these traigle is the area of parallelogram
So
2*10.5=21
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECTPLEASE
solve for the value of x. Show your Solution. ( 5 points ) Given ∆RPA and ∆NUJ, RP = 2× + 5 and
NU = 13
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
As we can see in the given figure, The two triangles are congruent to each other by many criterias, so we can infer that Their corresponding sides are of equal length.
That is :
[tex]\qquad \tt \dashrightarrow \:2x + 5 = 13[/tex]
[tex]\qquad \tt \dashrightarrow \:2x = 13 - 5[/tex]
[tex]\qquad \tt \dashrightarrow \:2x = 8[/tex]
[tex]\qquad \tt \dashrightarrow \:x = 8 \div 2[/tex]
[tex]\qquad \tt \dashrightarrow \:x = 4[/tex]
Therefore, value of x is 4
Answer:
x = 4
Step-by-step explanation:
the point here is congruent triangles.
according to the image,
2x + 5 = 13 <---- subtract constants
2x = 13 - 5 = 8 <--- finalize
2x = 8 <----------- divide both sides by 2
2x / 2 = 8 / 2 <-- finalize
x = 4 <--- answer
What is the probability, to the nearest hundredth, that a point chosen randomly inside the rectangle is in the circle?
Answer:
Answer D (.22)
Step-by-step explanation:
If Brainly would stop deleting my answer, your answer is D (.22).
3n + 2 = 8 find answer for n
Answer:
[tex]\boxed{\sf{n=2}}[/tex]Step-by-step explanation:
To solve for n, isolate it on one side of the equation.
3n+2=8First, you have to subtract by 2 from both sides.
[tex]\Longrightarrow: \sf{3n+2-2=8-2}[/tex]
Solve.
Subtract the numbers from left to right.
[tex]\sf{8-2=6}[/tex]
Rewrite the problem.
⇒ 3n=6
Divide by 3 from both sides.
→ 3n/3=6/3
Solve.
Divide the numbers from left to right.
→ 6/3=2
[tex]\Longrightarrow: \boxed{\sf{n=2}}[/tex]
Therefore, the correct answer is n=2.I hope this helps! Let me know if you have any questions.
Answer:
n = 2 or.... n is 2
Step-by-step explanation:
When simplifying to find n, we do something to one side, but it also must be done to the other side. First, to get n alone, we would subtract 2. When doing this, we do it for both sides:
3n + 2 = 8
-2 -2
3n = 6
Now, we divide n by 3 becuase right now it says 3 times n. We again do the same for both sides:
3n = 6
/3 /3
n = 2
So the answer is n = 2
n is 2.
need help with question 16
I'm not sure what the answer is but read some books and study also I believe relaxing music helps with homework struggles
4.
Neville saw this car for sale.
He got a discount of 25% off the price of the car.
He paid £7200 for the car.
Work out the price of the car before the discount.
The Answer (maybe) :
Hello! good morning or night where ever you are.
I'm here to help with your question :)
I believe the answer is 9600
Step-by-step explanation:
[tex]75/100[/tex] [tex]x =[/tex] [tex]7200[/tex]
[tex]0.75[/tex] [tex]x = 7200[/tex]
[tex]x =[/tex] [tex]7200/0.75[/tex]
[tex]x =[/tex] [tex]9600.[/tex]
The previous price before the discount = 9600 pounds.
Checking:
[tex]25%[/tex]% [tex]of[/tex] [tex]9600[/tex]: [tex]2400[/tex]
[tex]9600 -[/tex][tex]2400=7200[/tex]
Answer/ Writer's note: I'm truly sorry if this incorrect :(
Signed - [tex]Lilo[/tex]
1. Mrs. Berger is making a circular tablecloth for her table. Her table has a radius of 3 feet. Which measurement is closest to the amount of fabric will Mrs. Berger needs to buy to create the tablecloth if it fits perfectly on the table? A. 28.27 ft2 B. 9.42 ft2 C. 18.85 ft2 D. 113.1 ft?
Answer:
A. 28.27 ft^2
Step-by-step explanation:
You're looking for the area of the circle.
Area of circle = [tex]\pi r^{2}[/tex]
[tex]\pi (3)^{2}[/tex]
= 28.27 ft^2
what does x equal to?
5(x - 4) + 12 = 17
Answer:
x is 5
Step-by-step explanation:
First of all, expand the bracketsThis gives [tex]5x-20+12=17[/tex]Add 20 to both sides[tex]5x+12=37[/tex]Subtract 12 from both sides[tex]5x=25[/tex]Divide both sides by 5[tex]x=5[/tex]Answer:
x = 5Step-by-step explanation:
In the question we're given with an equation that is 5(x - 4) + 12 = 17 and we are asked to find the value of x .
Solution : -
[tex] \longmapsto \: 5(x - 4) + 12 = 17[/tex]
Step 1 : Solving parenthesis :
[tex] \longmapsto \:5x - 20 + 12 = 17[/tex]
Step 2 : Adding 20 on both sides :
[tex] \longmapsto \:5x - \cancel{20 }+ 12 + \cancel{20 }= 17 + 20[/tex]
[tex] \longmapsto \:5x + 12 = 37[/tex]
Step 3 : Subtracting 12 from both sides :
[tex] \ \longmapsto \: \:5x + \cancel{ 12} - \cancel{12} = 37 - 12[/tex]
[tex] \longmapsto \:5x = 25[/tex]
Step 3 : Dividing by 5 on both sides :
[tex] \longmapsto \: \frac{ \cancel{5}x}{ \cancel{5} } = \cancel\frac{25}{5} [/tex]
[tex] \longmapsto \: \red{ \boxed{\bold{x = 5}}}[/tex]
Therefore , value of x is 5Verifying :
We are verifying our answer by substituting value of x in Given Equation :
5(x - 4) + 12 = 175 ( 5 - 4 ) + 12 = 175 ( 1 ) + 12 = 175 + 12 = 1717 = 17L.H.S = R.HS.Hence, Verified.Therefore , our value for x is correct .
#Keep Learningthree friends Luke nick and serena are kicking a soccer ball to each other on the beach Luke kicks the ball to Serena who kicks the ball to nick, who kicks the ball back to Luke. the friends location on the beach are drawn on a coordinate plane as shown where the x values and y represent distance in feet.
WHAT IS THE APPROXIMATE DISTANCE THE BALL TRAVELS AFTER MAKING A FULL ROTATION AROUND THE TRIANGLE OF FRIENDS?
A. 288 feet
B.57.94 feet
C. 144 feet
D. 67.91 feet
The approximate distance the ball travels after making a full rotation around the triangle of friends is approximately 56.25 feet.
The closest option to this value is option B: 57.94 feet.
To find the approximate distance the ball travels after making a full rotation around the triangle of friends, we need to calculate the sum of the distances between each pair of friends.
Distance between Luke and Serena:
√[(4 - 4)² + (9 - (-14))²]
= √(0 + 23²)
= √529
= 23 feet
Distance between Serena and Nick:
√[(4 - (-8))² + ((-14) - (-2))²]
= √(12² + (-12)²)
= √(144 + 144)
= √288
= 16.97 feet (approx.)
Distance between Nick and Luke:
√[((-8) - 4)² + ((-2) - 9)²]
= √((-12)² + (-11)²)
= √(144 + 121)
= √265
= 16.28 feet (approx.)
Now, to get the approximate total distance traveled, we add the distances together:
Total distance ≈ 23 + 16.97 + 16.28
= 56.25 feet
The approximate distance the ball travels after making a full rotation around the triangle of friends is approximately 56.25 feet.
The closest option to this value is option B: 57.94 feet.
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How much paper is needed to cover the rectangular prism shown below?
A. 92 in2
B. 120 in2
C. 184 in2
D. 494 in2
Answer:
Its c!
Step-by-step explanation:
Answer:
Step-by-step explanation:
c
Lisa is currently taking physics as one of her electives in school. her grade at the end of the year is determined by the average of four exams, each worth 100 points. on her first test she got an 84, on her second she got a 92, and on her third an 80. what must she score on her fourth exam to get exactly 80% in the course? a. 60 b. 64 c. 84 d. 85 please select the best answer from the choices provided a b c d
The score which Lisa should get in her fourth exam of school to get exactly 80% in the course is 64.
What is the average of a group of numbers?The average of the group of numbers is the ratio of the sum of all the numbers of the group to the total number of the group.
Lisa is currently taking physics as one of her electives in school.
Her grade at the end of the year is determined by the average of four exams, each worth 100 points.
On her first test, she got an 84, On her second, she got a 92, On her third, an 80.She got exactly 80% in the course. Let she scores x marks in her fourth exam. Thus,
[tex]\dfrac{84+92+80+x}{4}=80\\256+x=80\times4\\x=320-256\\x=64[/tex]
Hence, the score which Lisa should get in her fourth exam of school to get exactly 80% in the course is 64.
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A store sold 650 bicycles last year. This year the store sold 572
bicycles. What is the percent decrease in the number of bicycles sold from last year to this year?
Which function has zeros at x = 10 and x = 2? f(x) = x2 – 12x 20 f(x) = x2 – 20x 12 f(x) = 5x2 40x 60 f(x) = 5x2 60x 100
The function which has zeros at x = 10 and x = 2 is [tex]\rm f(x)=x^2-12x+20[/tex].
What are the zeros of the function?The zero of a function is any replacement for the variable that will produce an answer of zero.
Graphically, the real zero of a function is where the function's graph crosses the x-axis; that is, the real zero of a function is the x-intercept (s) of the function's graph.
The function which has zeros at x = 10 and x = 2 is;
[tex]\rm f(x)=(x-10)(x-2)\\\\f(x)=x(x-2)-10(x-2)\\\\f(x)= x^2-2x-10x+20\\\\f(x)=x^2-12x+20[/tex]
Hence, the function which has zeros at x = 10 and x = 2 is [tex]\rm f(x)=x^2-12x+20[/tex].
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Answer: A. f(x) = x^2 – 12x + 20
right on edge 2023 :)
A bee's wings can beat about 6.48 * 10 ^ 5 times an hour. How is this number written in standard form?
Answer:
648000 times/hr
Step-by-step explanation:
6.48 * 10^5
Move the decimal 5 times to the right.
The answer you should get is 648000 times per hour.
43/57 to a percentage
Answer:
our fraction is 75.438596491228/100, which means that 43/57 as a percentage is 75.4386%.
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:
To convert a fraction to a percentage, multiply the fraction or result by 100. [tex](\frac{43}{57})*100 = 75.44%[/tex] = 75%
*note that 75.44 is rounded, the original number is longer.
Choosing a Formula
Which formula can be used to find the volume of the
cylinder? Check all that apply.
DA=(d)(h)
O V=B(h)
Ov=(lwXh)
D V=2(r)(h)
D1-Cr0Xh)
Answer:D V=2(r)(h)
Step-by-step explanation:
because al the other answers are incorrect
Can someone help me with this problem?
Answer:
9(3+5)
Step-by-step explanation:
GCF is 9, because thats the highest common number that both numbers can be divided by.
27/9 = 3
45/9 = 5
so,
9(3+5)
Which of the following are solutions to the quadratic equation. Check all that apply. x^2+x-12=0
Perform the operation. (9x^2-8)+(9x^2+9x+3)
Answer:
The answer is -5
Step-by-step explanation:
Hope it helps
Answer:
Step-by-step explanation:
Like terms have same variable with same power. Combine the like terms. Add / subtract the coeffiecient of the like terms.
9x² and 9x² are like terms
-8 and 3 are like terms.
9x² - 8 + 9x² + 9x + 3 = 9x² + 9x² +9x - 8 + 3
= 18x² + 9x - 5
What is the purpose of consumer rights?
Answer:
Consumer rights and consumer protection law provides a way for individuals to fight back against abusive business practices. These laws are designed to hold sellers of goods and services accountable when they seek to profit by taking advantage of a consumer's lack of information or bargaining power.
Step-by-step explanation:
Individuals can use consumer rights and consumer protection laws to fight back against unfair company practices.
What are consumer rights?Consumer rights refer to a corpus of legislation that governs what manufacturers of goods must do to safeguard their consumers from damage.
These statutes arose from a succession of court battles, and they have been influenced by the outcomes of those battles.
These rules are intended to hold retailers and service providers responsible when they seek to benefit from a consumer's lack of knowledge or bargaining power.
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