Answers
Answer:
x⁴ - y⁴= (x²)²- (y²)² = (x² + y²)(x²- y²) = (x²+y²)(x)²-(y)²=(x²+y²)(x+y)(x-y)
49x²-16/25= (7x)²- (4/5)²=(7x+4/5)(7x-4/5)
Answer:
(7x + 4/5)(7x - 4/5)
Step-by-step explanation:
iv. 49x² - 16/25
= (7x)² - (4/5)²
= (7x + 4/5)(7x - 4/5)
Related Questions
SOMEONE PLS HELP IM IN A HURRY PLEASE
Answers
Answer:
GE = 3
Step-by-step explanation:
Centroid of a triangle divides the median in the ratio 2 : 1
Therefore, let BG = 2x and GE = x
BG + GE = BE
2x + x = 9
3x = 9
x = 9/3
x = 3
GE = x = 3
24. A rectangle has a length of x +5 and a width of 2x-9. Using the formula for the perimeter of a rectangle wrote an expression to represent the perimeter of the rectangle in simplest form
Answers
Answer:
Perimeter = 6x-8
Step-by-step explanation:
a=x+5
b=2x-9
Perimeter = 2*(a+b)
Perimeter = 2*(x+5+(2x-9))
Perimeter = 2*(x+5+2x-9)
Perimeter = 2*(3x-4)
Perimeter = 6x-8
Which equation(s) represents a nonproportional relationship? Select all that apply
O y = 3x
O y = 3x-2
O y=x+1
O y=-4x
O y=-2-4
Answers
Don’t click on the other comment, that link is a hack
Which property justifies the statement below?
a(2b+c)=a(c+2b)
a. commutative property of addition
b. commutative property of multiplication
c. associative property of addition
d. distributive property
Answers
Answer:
d. distributive property
Step-by-step explanation:
Will mark brainliest
Answers
x=140 is the answer #####
A Hummingbird moves its wings at a rate of 5460 wingsbeats a minute. Write this rate in wingbeats per second?
PLEASE HELP
Answers
Answer:
60 seconds in a minute, so
5460 ÷ 60 = 91 beats per second
Harper's house is 30 feet wide and 45 feet long. On a scale drawing, the house is 4 inches wide and 6 inches long, and Harper's bedroom is 1.2 inches wide and 1.6 inches long.
What are the actual measurements of Harper's bedroom?
Enter your answers in the boxes.
Answers
Answer:
9ft wide 12ft long
Step-by-step explanation:
Libby needs to make 1/2 of her chili recipe for her school’s chili contest. If Libby usually needs 1/2 a cup of corn to make her chili, how much corn does she need for the chili contest?
Answers
1/4 cups of corn
Libby needs 1/4 cups of corn for contest.
The principal of a high school e-mails a survey to all parents asking them to vote on the best time to have the PTA meeting. She only receives responses from 56% of the parents. Describe how the design of the survey leads to bias.
A. A nonresponse error was made in this design. This type of sampling only represents those who answered the survey; it does not represent the entire population.
B. A nonresponse error was made in this design. This type of sampling only represents the parents at this school and not the entire population.
C. A convenience sample error was made in this design. This type of sampling only represents the parents with e-mail addresses and not the entire population.
D. An undercoverage error was made in this design. This type of sampling only represents the parents in the city and not the entire population.
E. There are no potential areas of bias.
Answers
Answer:
A
Step-by-step explanation:
The design of the survey leads to bias because a nonresponse error was made in this design. This type of sampling only represents those who answered the survey; it does not represent the entire population.
Only 56% of response were received this means the entire population did not participate in the survey only a chuck of them answered the survey. This can lead to a biased result, an assumption.
Unit 7 polygons hw 2 parallelograms
Please need this by tonight will give Brainly if it is all right
Answers
what is the measure of angle k?
Answers
9514 1404 393
Answer:
59°
Step-by-step explanation:
Opposite angles of an inscribed quadrilateral are supplementary.
∠N +∠L = 180°
(a +16) +(a -18) = 180
2a = 182 . . . . . . . . . . add 2
a = 91 . . . . . . . . . . . . divide by 2
Then the measure of angle M is ...
∠M = (a+30)° = (91 +30)° = 121°
and angle K is its supplement.
∠K = 180° -121°
∠K = 59°
Find the measure of angle x.
123°
Х
X =
= [?]
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16. If (2x+3y)< (x+5y) or x < y, then which of the follwong is true?
Answers
Answer:
See explanation
Step-by-step explanation:
Given
[tex]2x + 3y < x + 5y[/tex]
[tex]x < y[/tex]
Required
Which option is true;
No option is given; so, I will just solve the inequality
[tex]2x + 3y < x + 5y[/tex]
Collect like terms:
[tex]2x - x < 5y - 3y[/tex]
Evaluate like terms
[tex]x < 2y[/tex]
This implies that:
[tex]x < 2y[/tex] and [tex]x < y[/tex]
Work out the number of cubes in the cuboid
Answers
a piece of string is wound tightly round a cylinder for 20 complete turns.the length of the string is found to be 3.96m. Calculate the diameter of the cylinder In cm
Answers
Now divide 396cm by 20
396/20= 19.8 cm (this is the circumference of the cylinder)
C=2πr
19.8 =2πr
19.8/2π=r (divide 19.8 *circumference with 2π)
r= 3.15cm ( correct to two dp)
Can someone PLEASE PLEASE HELP!!! I will mark brainliest!
Answers
Answer:
false
Step-by-step explanation:
Rewrite in simplest form: 8(2x)
Answers
Answer:
Probably is 16x
Answer:
8×2x
Step-by-step explanation:
As u know that the bracket mean multiplication
Ashley has 4 pairs of low-top sneakers, 7 pairs of high-top sneakers, 3 pairs of sandals, and 1 pair of boots. What is the ratio of the pairs of low-top sneakers to the total number of pairs of shoes
Answers
The ratio is 4:15
what is ratio?A ratio indicates how many times one number contains another.
Given:
low-top sneakers= 4
high-top sneakers= 7
sandals= 3
boots = 1
Total shoes= 15
Now,
low- top sneakers : totals shoes
=4:15
Learn more about ratio here:
https://brainly.com/question/23499990
#SPJ2
Which of the following is the graph of F(x) =-1/2x'4?
Answers
Answer:
A
Step-by-step explanation:
f(x) = -1/2x^4
Because x^4 is being multiplied n=by a negative number, the parabola will face down. That means it is between a and b. To figure out which graph it is, I look at points I could compare.
In graph A, when x=1, y < 1. In graph B, when x=1, y>1.
If i plug x= 1 into f(x), I get:
f(1) = -1/2(1)^4
f(1)=-1/2(1)
f(1)=-1/2
Because f(1) < 1, it is graph A.
Sandra spins the pointer of a spinner. The spinner has four equal sections labeled 1 to 4. Complete
parts a and b.
a. The probability that the pointer will land on a number less than 5 is _____.
(Type an integer or a fraction.)
b. Complete the sentence to describe the likelihood of landing on a number less than 5.
It is ______
V that the pointer will land on a number less than 5.
Answers
Answer:
A
Step-by-step explanation:
Its A for the answer trust me
What is the correct answer?
Answers
A car travels at an average speed of 68 mph how many miles does it travel in four hours and 30 minutes
Answers
Answer:
about 306 miles.
Step-by-step explanation:
68 times four and a half is 306.
hope this helped! :)
Answer:
306 miles.
Step-by-step explanation:
30 minutes = 0.5 miles.
Distance travelled = 68 * 4.5
= 306.
What is the area of a rectangle with a length of 10 feet and a width that is 1.5 feet longer than the length?
A. 11.5 square ft
B. 15 square ft
C. 24 square ft
D. 115 square ft
Answers
Answer:A
Step-by-step explanation:
In a study by Peter D. Hart Research Associates for the Nasdaq Stock Market, it was determined that 20% of all stock investors are retired people. In addition, 40% of all U.S. adults invest in mutual funds. Suppose a random sample of 25 stock investors is taken. a. What is the probability that exactly seven are retired people
Answers
Answer:
0.0545 = 5.45% probability that exactly seven are retired people.
Step-by-step explanation:
For each stock investor, there are only two possible outcomes. Either they are retired people, or they are not. Stock investors are independent. This means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [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]
And p is the probability of X happening.
20% of all stock investors are retired people.
This means that [tex]p = 0.2[/tex]
a. What is the probability that exactly seven are retired people?
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 7) = C_{20,7}.(0.2)^{7}.(0.8)^{13} = 0.0545[/tex]
0.0545 = 5.45% probability that exactly seven are retired people.
Christopher is 20 years younger than Ishaan. Ishaan and Christopher first met two years ago. Fourteen years
ago, Ishaan was 3 times as old as Christopher.
How old is Christopher now?
Answers
One month Amy rented 4 movies and 8 video games for a total of 61 dollars. The next month she rented 2 movies and 3 video games for a total of 24 dollars. Find the rental cost for each movie and each video game.
Rental cost for each movie: $?
Rental cost for each video game:$?
Answers
Answer:
Rental cost of movie is $6.50 ; Rental cost of video game is $2.25
Step-by-step explanation:
4m + 8v = 61 ........ (1)
2m + 3v = 24 ........ (2)
(1) - 2 × (2)
2v = 13
v = 6.5
2m + 3(6.5) = 24
2m = 24 - 19.5
m = 4.5 ÷ 2 = 2.25
Rental cost for each movie is $6.50
Rental cost for each video game is $2.25
please show all work i’ll mark brainliest
Answers
Answer:
a) P = 26 cm
b) A = 36 cm²
Step-by-step explanation:
perimeter is sum of all sides: 6+4+2+3+4+7 = 26
Area can be found by taking entire area, 7x6, then subtracting out the area of the missing piece, 2x3
A = 42 - 6 = 36 cm²
Answer:
Area is 36 and Perimeter is 26
Step-by-step explanation:
solving area:
4x6=24
3x4=12
24+12=36
solving perimeter:
6+4+2+3+4+7= 26
Please any help i need it now please
i will mark you brill
Answers
Answer:
(x+2.25) ×24
This is how it is written
Answer:
Step-by-step explanation:
y = 24*(x + 2.25)
There, that's an algebraic expression for 24 times the sum of a number and 2.25.
find the area of this shape plz i really need this done asap plz help with no fake answers questions 50 points
Answers
Answer:
Green: 8
Red: 9
Bright Green: 4
Light Green: 12
Peach: 4
Step-by-step explanation:
Green: 1/2(4)(3)=6
1/2
1 1/2
6+1/2+1 1/2=8
Red: 1.5+3+1.5+2+1=9
Bright Green: 12-1-3-4=4
Light Green: 3x4=12
Peach: 1+1+1+1=4
Answer:
1. 8
2. 9
3. 4
4. 12
5. 4
If you do this on paper and match up the sides you will get the same. I would show, but I can’t add photos here on my device. But Yeah, I have these for homework and I got em correct. Sooooo, have a great day ladies and gents and everyone else(sorry, I don’t know how to say for non-binary people)
X+y= -4 2x -2y= 0 what best describes the solution to the system
Answers
Answer:
install photomath
Step-by-step explanation:
.............