Answer:
(3x−y)(x+7y)
Step-by-step explanation:
Factor (2x+3y)^2−(x−4y)^2
3x^2+20xy−7y^2
=(3x−y)(x+7y)
Answer:
(3x - y)(x + 7y)
Step-by-step explanation:
Given
(2x + 3y)² - (x - 4y)² ← is a difference of squares and factors in general as
a² - b² = (a + b)(a - b)
Here a = 2x + 3y and b = x - 4y , then
(2x + 3y + x - 4y)(2x + 3y - (x - 4y))
= (3x - y)(2x + 3y - x + 4y) = (3x - y)(x + 7y)
Thus
(2x + 3y)² - (x - 4y)² = (3x - y)(x + 7y) ← in factored form
There were 8 judges at a gymnastic competition. Kathleen received these scores for her performance on the uneven parallel bars: 8.2, 8.7, 8.8, 8.8, 8.9, 8.9, 8.9, 9.2 Mean = 8.8 Median = 8.85 Mode = 8.9 Which statistic reflects a typical score? Explain.
Answer:
It is the MEAN
Step-by-step explanation:
Mean, median and mode given in the question are all used to measure central tendency of a given data. From the sets of data given, and from the values of the mean, median and mode (8.8, 8.85 and 8.9 respectively) it can be summarized that these values points the center of the sets of data trying to estimate the average.
MEAN is the statistic that reflects a typical score because when we look at the data (8.2, 8.7, 8.8, 8.8, 8.9, 8.9, 8.9, 9.2), it easily gives us the average score. Since mean = addition of the data value / the number of the data, it gives us Kathleen average score since it takes all the judges scores into consideration giving us the typical score. Unlike mode that only use most occured data meaning it doen't use all the data and as such may not show the true average of the scores. Also, mode is not consistent when it comes to small number of data especially if no score occur most or we have more than one mode. It is not median because of the small number of scores (data).
Angle x is ___ degrees ASAP DUE IN A HOUR
Answer:
122°
Step-by-step explanation:
180-58=122
you minus angle BCA from 180 is because a straight line is 180 degrees
Answer:it would probably be 180 because it is a straight line
Step-by-step explanation:
what is the domain of the function s=-4r^2 if the range is s <_ 0
Answer:
r≤0
Step-by-step explanation:
if the range is s≤0, (that means the value of s is all negative integers &0) to find the domain we have to replace that some negative integers &0.
we can replace some values of s as the following
s=‒4(0)^2 s=‒4(‒1)^2
=‒4(0) =‒4(1)
=0 =‒4
s=‒4(‒2)^2 s=‒4(‒3)^2
=‒4(4) =‒4(9)
=‒16 =‒36
so we can understand easly that the domain is negative integer&0,it can't be positive because the square of any integer is positive.
therefore the answer is r≤0
i think &i hope it is clear.
The domain is the set of values for which the given function is defined. The domain of the function s=-4r² if the range is s≤0 is r∈R. The correct option is B.
What are the domain and range of a function?The domain is the set of values for which the given function is defined.The range is the set of all values which the given function can output.For the given function s=-4r², the domain of the function when s≤0 will be all the real numbers. This is because, for any value of r whether it is positive or negative, the value of r² will be positive, but at the same time this quantity is needed to be multiplied by -4.
Thus, the result of -4r² will be always negative, which is less than zero.
Hence, the domain of the function s=-4r² if the range is s ≤0 is r∈R.
Learn more about appropriate domain here:
https://brainly.com/question/20073127
#SPJ2
A rational function in the form axm+.../bxn+... has a slant (oblique) asymptote when ________.
PLEASE HELP
Answer:
occurs when the polynomial in the numerator is a higher degree than the polynomial in the denominator
Step-by-step explanation:
Cyclone cleared leaves from the same number of yards
each day for 5 days. Then on day 6, he cleared the leaves
from 8 more yards. He cleared 133 yards in all.
Answer:
Number of yards per day = 20.83 yard (Approx)
Step-by-step explanation:
Assume;
Number of yards = x per day
Number of yards on 6th day = x + 8
Total yards = 133
Find:
Number of yards per day
Computation:
Total yards = 5[x] + x + 8
133 = 6x + 8
6x = 125
x = 20.83 yard
Number of yards per day = 20.83 yard (Approx)
Answer:
20.83 yards
Step-by-step explanation:
Calculate Cubic Yards
Calculate your area
Calculate your volume: Multiply area times the depth to get volume in cubic feet
Calculate your cubic yards: Divide cubic feet by 27 to convert to cubic yards and this is your answer
Where ft2 = square foot, ft3 = cubic foot, yd3 = cubic yard
Total yards = 5[x] + x + 8
Solve
133 = 6x + 8
6x = 125
x = 20.83 yard
Therefore, the Cyclone cleared 20.83 yards on the first day.
Solve x3 = 64 over 27
Answer:
x= 4/3
Step-by-step explanation:
Answer:
Hope it helps
Step-by-step explanation:
So you want to get x by itself.
x3= [tex]\frac{64}{27}[/tex]
You could simplify
x3=2.37037037037
Then just divide 3 on both sides
x=0.79012345679
Or you can divide a fraction by a whole number and just divide the numerator and the denominator by 3.
x= [tex]\frac{21.3}{9}[/tex] or just 2.36666666667.
25
The graph models the proportional relationship between the amount of money
Tessa earns and the hours she works. Decide if each statement is true or false.
Choose True or False for each statement
20
15
Money Earned (5)
10
True
False
1
2
3
Hours
a. The point (1, 12.5) means Tessa makes $1.00 in
12.5 hours
b. The point (1, 12.5) identifies the constant of
proportionality
c. The point (0,0) means the constant of
proportionality is o.
d. The point (0.5, 6.25) means that Tessa earns
56.25 every half hour.
Answer:true false true false
Step-by-step explanation:
What is the slope of the line that passes through the points (-5,0) and (7,8)?
Write your answer in simplest form.
Answer:
Step-by-step explanation:
Use the slope formula:
[tex]m = \frac{y2 -y1}{x2 - x1}[/tex]
where m = slope
(-5, 0) -> means x1 = -5. y1 = 0
(7, 8) -> means x2 = 7 , y2 = 8
Substitute these values into the slope formula above and you get:
[tex]m = \frac{y2 -y1}{x2 - x1} = \frac{8-0}{7- (-5)} = \frac{8}{7+5} = \frac{8}{12} = \frac{2}{3}[/tex]
The slope of the line that passes through the points (-5,0) and (7,8) is 2/3
The formula for calculating the slope of a line is expressed as:
[tex]m = \frac{y_2-y_1}{x_2-x_1} \\m=\frac{8-0}{7-(-5)} \\m=\frac{8}{7+5}\\m=\frac{8}12} \\m= \frac{2}{3}\\[/tex]
Hence the slope of the line that passes through the points (-5,0) and (7,8) is 2/3
Learn more here: https://brainly.com/question/12922257
Find the M_ABC in the diagram below.
A
B
(16y-12)
(12y + 8)
E
Answer:
where is the diagram
Step-by-step explanation:
What is 2 ÷ 1/6?
A. 1/12
B. 2
C. 6
D. 12
Answer: 12 (D)
Step-by-step explanation:
Hey there! If you have any questions, feel free to them in the comments below.
Step 1: Use this rule [tex]a / \frac{b}{c} = a * \frac{c}{b}.[/tex]
2 * 6
Step 2: Simplify.
12
~I hope this helped you! :)~
Answer:
Step-by-step explanation:
here you go mate
step 1
2 ÷ 1/6 equation
step 2
(2)(6) multiply the two numbers
answer
12
8
Which angles are vertical angles?
6
5
Answer:
angle 8 and angle 5
Step-by-step explanation:
What is an
equation of the line that passes through the points (0, 2) and (5,8)?
Answer: y = 1.2x + 2
Step-by-step explanation:
slope = (8 - 2)/(5 - 0) = 6/5
y-intercept = (0, 2)
y = (6/5)x + 2
y = 1.2x + 2
Bobby sells sports videos to local businesses in his area. His daily wage, W, is based on the number of hours he works, H, at the minimum wage of $7.25 per hour, plus $10 to cover gas and lunch expenses. Which equation best describes this relationship?
Answer:
W = 7.25H - 10
help me please!!!!!!!!!!!!
Answer:
?
Step-by-step explanation:
Help me first one gets brainliest IF they’re right
Answer:
C
Step-by-step explanation:
You divided it, 752 by 3, and you will get 250.6 repeating! This is important to rember.
Molly is planting the flowers using the proportional relationship of 18 pink flowers to 12 white flowers per row.
Find the ratio of pink flowers per white flower per row.
Molly is planting a ratio of
pink to white flowers.
Answer:
18 pink to 12 white......18/12 reduces to 3/2......
Step-by-step explanation:
Answer:
The answer is 3/2 hope it helps
Step-by-step explanation:
Find the y intercept
x-3y = 12
Help plz
Answer:
15
Step-by-step explanation:
Because 15 -3 will give you 12
Answer:
the y intercept is -4 or (0,4)
Step-by-step explanation:
To find the y intercept you have to make x zero, and vice versa. So:
0-3y = 12
-3y = 12
y = 12/-3
y = -4
the y intercept is -4 or (0,4)
Which expression is equivalent
to cos(4x)?
Answer: A 2(2cos^2(x) - 1)^2 - 1
Step-by-step explanation: E 2020
The expression equivalent to cos(4x) is 2cos²(2x) - 1.
Out of the options provided, the correct choice is 2cos²(2x) - 1.
The expression equivalent to cos(4x) can be found using trigonometric identities and formulas. One such identity is the double angle identity for cosine:
cos(2θ) = 2cos²(θ) - 1.
We can apply this identity to the expression cos(4x) by considering it as cos(2(2x)).
Using the double angle identity, we have:
cos(4x) = cos(2(2x)) = 2cos²(2x) - 1.
Therefore, the expression equivalent to cos(4x) is 2cos²(2x) - 1.
Out of the options provided, the correct choice is:
O 2cos²(2x) - 1.
By substituting 2x for θ in the double angle identity, we obtain the equivalent expression for cos(4x).
To learn more about trigonometric identities;
https://brainly.com/question/24377281
#SPJ2
PLSSS HELLPPPPPPPPP
is 128% rational or irrational
Answer:
irrational
Step-by-step explanation:
select all of the following expressions that are equivalent to 9 1/2
where are the options???
Answer:
first question is 25
next question is 12
the last question is 1/16
Answer:
what
Step-by-step explanation:
How did the Yuan dynasty contribute to the rebellion that eventually
overthrew the dynasty?
O A. The Yuan government discriminated against the Chinese and
suppressed their culture.
B. The Yuan government was Confucian, and the people had turned
against Confucianism.
C. The Yuan government had begun indiscriminately killing Chinese
people in the streets.
O D. The Yuan government had entered into unfavorable trade
agreements for the Chinese.
Answer:
a
Step-by-step explanation:
thats what i put and got it right
on sunday Danielle is having her friends over for her 9th birthday she had 24 M&M bags 36 jelly beans and 48 snickers to make goodie bags If each person coming to her party received the same amount of each candy what is the greatest number of friends that can come over how much candy will they receive PLS help due in 20 minutes
Number of M&M bags with Danielle = 24
Number of jelly beans with her = 36
Number of snickers with her = 48
To find the highest number of candies each friend of Danielle will get, in a way in which all of them have the same number of candies , we have to find the HCF (highest common factor) of all the varieties of candy with Danielle.
Factors of 24 = 1,2,3,4,6,8,12,24
Factors of 36 = 1,2,3,4,6,9,12,18,36
Factors of 48 = 1,2,3,4,6,8,12,16,24,48
Highest common factor = 12
Which means the highest number of friends Danille can invite is 12 .
Number of M&M bags each friend will get :-
[tex] = 24 \div 12[/tex]
[tex]\color{hotpink} = 2 [/tex]
Which means each friend will get 2 M&M bags .
Number of jelly beans each friend of hers will get :-
[tex] = 36 \div 12[/tex]
[tex]\color{hotpink} = 3[/tex]
Which means each friend of Danielle will get 3 jelly beans.
Number of snickers each friend of hers will get :-
[tex] = 48 \div 12[/tex]
[tex] \color{hotpink}= 4[/tex]
Which means each friend of hers will get 4 snickers .
Therefore , the highest number of friends Danielle can invite = 12 and each of her friends will get 2 M&M bags , 3 jelly beans and 4 snickers .
MATH HELP ASAP PLEASE
Answer:
53lbs
Step-by-step explanation:
if he bought three bags of gravel that are 20 lbs. each then he would have 60 lbs. of gravel. In the end he only had 7 pounds left so you would subtract 7 from 60 and get 53 pounds.
7+x=60 or 60-7=53
i hope this helped!
You spend $38.50 on 7 movie tickets. What is the cost for 1 ticket?
Answer:
$5.50
Step-by-step explanation:
The right triangle has a big square with an area of 73 sq. units . What could the area of the small squares be .
9514 1404 393
Answer:
E. 40 and 33
Step-by-step explanation:
The Pythagorean theorem tells you the sum of the areas of the smaller squares will match the area of the largest square.
The answer choices have sums of ...
A: 76; B: 73; C: 96; D: 66; E: 73
So, choices with the correct sum are B and E.
If this question asks you to "choose all that apply," then B & E will be your answer choices.
__
We note that the areas of the smaller squares appear to be not much different in size. If their areas were 23 and 50, the smaller square would be less than half the size of the larger one. So, if the figure is drawn approximately to scale, the choice of 40 and 33 is a better choice.
helpppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! pleaseeeeeee
Answer:
Step-by-step explanation:
y= money earned , x is the number of hours
k is the constant=y/x=12
a- y=12 xb- if she worked 18 hours:
y=12(18)
y=216 dollarsc- if she earned 330 dollars:
330=12x
x=330/12
x=27.5 hoursMs. Psenicska is going to Detroit, Michigan. The cost for two different travel packages is shown in the table.
Package 1 Package 2
$175 S250
Roundtrip Ticket
(per person
Hotel Cost
(per night)
$60
$45
Answer:
y= 45x + 60 if you are just doing the hotel cost. y= 45x + 235 package one and y= 45x + 310 package two if you are including the cost of the travel packages.
Solve for d.
2d = 8
d = ?
Answer:
d = 4
Step-by-step explanation:
First, we take the equation 2d = 8
In order to find out what the value of 9 must be in order to make this equation true, we must isolate the variable. That can be done by doing the opposite operation. In this case, the opposite operation would be division since d is being multiplied by 2 to get 8.
So, we have to divide both sides of the equation by 2:
2d = 8
2 2
2d divided by 2 is equal to d.
And 8 divided by 2 is equal to 4.
Therefore, d is equal to 4.
Hope this helps!!
Answer:
d=4
.......................................
pls help i don’t understand
Answer:
the decimal number is 19
Answer:
Step-by-step explanation:
3.8/0.2 = 19.0