Answers
Answer:
[tex]-11b^2+8b-4[/tex]
Step-by-step explanation:
We can substitute in our expressions for P and Q to get
[tex]P=-4b^2+6b-9\\Q=7b^2-2b-5\\\\(-4b^2+6b-9)-(7b^2-2b-5)[/tex]
Next, we need to distribute the negative to the values within the parenthesis. Then we can combine like terms in order to get our answer
[tex](-4b^2+6b-9)-(7b^2-2b-5)\\\\-4b^2+6b-9-7b^2+2b+5\\\\-11b^2+8b-4[/tex]
Answer:
-11b^2 + 8b - 4
Step-by-step explanation:
(-4b^2 + 6b - 9) - (7b^2 - 2b - 5) =
Drop the first set of parentheses because it is unnecessary. To drop the second set of parentheses, you must distribute the negative sign. That means you must change every sign inside the second set of parentheses.
= -4b^2 + 6b - 9 - 7b^2 + 2b + 5
Now, group like terms.
= -4b^2 - 7b^2 + 6b + 2b - 9 + 5
Finally, combine like terms.
= -11b^2 + 8b - 4
Related Questions
Any and all answers get 5 stars.
Correct answers get a thanks,
Best answer gets brainliest.
Kim wants to know if the number of words on a page in her math book is generally more than the number of words on a page in her poetry book. She takes a random sample of 25 pages in each book, then calculates the mean, median, and mean absolute deviation for the 25 samples of each book.
Book Mean Median Mean absolute deviation
Math 49.9 43 10.2
Poetry 41.5 42 1.1
Kim claims that because the mean number of words on each page in the math book is greater than the mean number of words on each page in the poetry book, the math book has more words per page. Based on the data, is this a valid inference?
A: No, because there is a lot of variability in the math book data
B: No, because the mean is larger in the math book
C: Yes, because the mean is larger in the math book
D: Yes, because there is a lot of variability in the math book data
Answers
Answer:
the answer is A I'm 80% sure
Use the technique of completing the square to transform the quadratic equation into the form (x + c)2 = a.
10x2 + 80x + 220 = 0
Select the best answer from the choices provided
Answers
Answer:
f(x) = 10 [ (x + 4)^2 = -6 ]
Step-by-step explanation:
Please use " ^ " to indicate exponentation. Thanks.
Also, please share the possible answer choices. "Select the best answer from the choices provided."
Start with f(x) = 10x^2 + 80x + 220 = 0
Factor out the 10 to simplify this "completing the square."
f(x) = 10(x^2 + 8x + 22) = 0
Complete the square of x^2 + 8x + 22 only, for now.
Identify the coefficient of the x term. It is 8. Take half of that (it is 4) and square your result: 16
Now add 16 to x^2 + 8x and then subtract 16 from that sum:
x^2 + 8x + 16 - 16 + 22 = 0, or
x^2 + 8x + 16 + 6 = 0
Rewrite x^2 + 8x + 16 as (x + 4)^2
and then the whole expression x^2 + 8x + 16 - 16 + 22 as (x + 4)^2 = -6
Finally, rewrite this as
f(x) = 10 [ (x + 4)^2 = -6 ] which is the desired form of the original equation.
Answer:
The answer is
[tex](x+4)^2=-6[/tex]
Step-by-step explanation:
Follow the steps below.
1) Take common factor 10
[tex]10(x^2 + 8x + 22) = 0[/tex]
2) For an equation of the form [tex]ax ^ 2 + bx + c[/tex]
Calculate [tex](\frac{b}{2})^2[/tex]
In this case the equation is [tex]x^2 + 8x + 22= 0[/tex]
[tex]a=1\\b=8\\c =22\\\\(\frac{b}{2})^2 = (\frac{8}{2})^2 = 16[/tex]
3) Add 16 on both sides of equality
[tex]10(x^2 + 8x + 16) +220= 16*10[/tex]
4) Factor the expression into parentheses and simplify
[tex]10(x+4)^2 +220= 16*10[/tex]
[tex]10(x+4)^2= 16*10-220[/tex]
[tex]10(x+4)^2 =-60[/tex]
[tex](x+4)^2 =-6[/tex]
Adrian’s recipe for raisins muffins calls for 1 3/4 cups of raisins for one batch of muffins. Adrian wants to make 2 1/2 batches of muffins for a bake sale. How many cups of raisins will Adrian use?
(HAPPY EID TO ALL!!!)
Answers
Adrian will need 4 3/8 cups of raisins to bake 2 1/2 batches.
Convert the mixed fractions into improper fractions:
1 3/4 = 7/4
2 1/2 = 5/2
Multiplying fractions:
1) Multiply numerators
2) Multiply denominators
3) Simplify answer
7/4 * 5/2 = 7*5 / 4*2 = 35/8
35/8 can be simplified into a mixed fraction 4 3/8
Adrian needs to use 4 3/8 cups of raisins.
Answer:
4 3/8
Step-by-step explanation:
Step 1: Convert the numbers into improper fractions. To do this, multiply the denominator value by the whole number and then add the numerator to that product. 1 3/4 becomes 7/4 and 2 1/2 becomes 5/2.
Step 2: Multiply the fractions straight across. Multiply the numerators together and the denominators together. 7 * 5 is 35. 4 * 2 is 8. The improper fraction is 35/8.
Step 3: Convert the improper fraction to a mixed number. Do this by dividing the numerator by the denominator. 35/8 is 4 with a remainder of 3/8. 4 3/8 is the number of cups he will use to make his batches of muffins.
Simplify.
9.4c−1.01∙(22b−5.2c)+b
Please help me with this question! I will give title of Brainliest if correct.
Answers
Final answer:
To simplify the expression, distribute the -1.01 across the parentheses, combine like terms, and the simplified result is 14.652c - 21.22b. Given values for a, b, and c are not needed.
Explanation:
To simplify the algebraic expression 9.4c - 1.01∙(22b - 5.2c) + b, we first distribute the -1.01 across the parentheses, and then combine like terms.
Step-by-Step Explanation:
Distribute -1.01 to each term inside the parentheses: -1.01 * 22b = -22.22b, and -1.01 * (-5.2c) = 5.252c.
Combine the distributed terms with the original expression: 9.4c - 22.22b + 5.252c + b.
Combine like terms: (9.4c + 5.252c) + (b - 22.22b).
Adding c terms together gives 14.652c, and combining b terms gives -21.22b(because 1b - 22.22b equals -21.22b)
The simplified expression is now 14.652c - 21.22b.
Note: The given values a = 1, b = 0.0211, and c = -0.0211 are not relevant to the simplification process.
For what values of a and m does f(x) have a horizontal asymptote at y = 2 and a vertical asymptote at x = 1?
Answers
for a rational expression the vertical asymptotes occur when the denominator equals 0, in this case that will be when x + a = 0.
now, if there were to be a vertical asymptote of x = 1, that simply means that
x = 1 ==> x - 1 = 0.
meaning that a = -1.
horizontal asymptotes occur when the denominator has a higher degree than the numerator OR when both have the same degree.
when the degree of the denominator is higher, then the only horizontal asymptote occurring is y = 0.
when the degrees are the same, then the horizontal asymptote occurs at the leading terms' coefficient fraction.
now, if this expression were to have a horizontal asymptote of y = 2, that simply means
[tex]\bf \cfrac{2x^m}{x+a}\implies \cfrac{2x^1}{1x^1+a}\implies \stackrel{\textit{horizontal asymptote}}{\cfrac{2}{1}\implies y=2}\qquad \textit{meaning m = 1}[/tex]
ANSWER
a=-1,m=1
EXPLANATION
The given function is
[tex]f(x) = \frac{2 {x}^{m} }{x + a} [/tex]
For this rational function to have a horizontal asymptote at y=2, the degree of the numerator must equal the degree of the denominator.
This implies that, we must have m=1.
For the function to have a vertical asymptote at x=1, then,
[tex]1 + a = 0[/tex]
This implies that,
[tex]a = 0 - 1[/tex]
[tex]a = - 1[/tex]
The correct choice is the third option.
Line m has a slope of 0. Line n is parallel to line m. What is the slope of line n?
A. O
B. -1
C. Line n has an undefined slope.
D. 1
Answers
Answer:
( A )
Step-by-step explanation:
If two lines are parallel, then the slope of both lines SHOULD be the same.
PLEASE help me! I will mark brainlist!
Answers
Answer:
yes ik
Step-by-step explanation:
Answer:it should be C
Step-by-step explanation:
I need to find the perimeter.
Answers
Answer: 8x - 11
Step-by-step explanation:
(5x-28)+(2x+11)+(x+5)
combine like terms 5x, 2x, x = 8x
combine all regular numbers -28, 11, 5 = -11
So the answer is : 8x-11
The price of a pair of shoes is $63.20. The sales tax rate is 4.5 percent. How much sales tax would you pay if you bought these shoes?
Answers
Answer;
63.20 / .045 = $2.84
Answer:
63.20 / .045 = $2.84
Step-by-step explanation:
The cover of the book is 28 centimeters long and 18 centimeters wide.what is the perimeter of the book cover
Answers
Answer:
the perimeter of the book cover is 504
:)
Step-by-step explanation:
A product costs $29.75 for 5 pounds. How much does it cost per ounce? (1 pound = 16 ounces)
Answers
Answer:
The product costs $0.37 per ounce.
Step-by-step explanation:
$29.75 for 5 pounds = x for 1 pound (Cross-Multiply)
5x/5 = $29.75/5
x = $5.95 per pound
$5.95 per pound/16 ounces = $0.37
$0.37 per ounce!
Answer:
$0.371875 does it cost per ounce.
Step-by-step explanation:
Use conversion:
1 pound = 16 ounces.
As per the statement:
A product costs $29.75 for 5 pounds.
In 5 pounds = product cost $ 29.75
then;
In 1 pound = [tex]\$\frac{29.75}{5}[/tex]
Using conversion we have;
In 16 ounces = [tex]\$\frac{29.75}{5}[/tex]
then;
in 1 ounces = [tex]\$\frac{29.75}{80} = \$0.371875[/tex]
Therefore, $0.371875 does it cost per ounce.
How does the variable of Data Set A compare to the variability of Data Set B?
Data Set A: 18, 24, 29, 30, 39
Data Set B: 26, 29, 39, 40, 52
Select from the drop-down menus to correctly complete the statements.
Data Set A has Data Set B because the range of Data Set A is the range of Data Set B
Answers
Answer:
Data Set A has less variability Data Set B because the range of Data Set A has less range of Data Set B
Step-by-step explanation:
Data Set A: 18, 24, 29, 30, 39
Data Set B: 26, 29, 39, 40, 52
Variability means you have more range so....
A company did a quality check on all the packs of roasted almonds it manufactured. Each pack of roasted almonds is targeted to weigh 21.25 oz. A pack must weigh within 0.24 oz of the target weight to be accepted. What is the range of rejected masses, x, for the manufactured roasted almonds?
x < 21.01 or x > 21.49 because |x − 0.24| + 21.25 > 0
x < 21.25 or x > 21.49 because |x − 21.25| > 0.24
x < 21.01 or x > 21.49 because |x − 21.25| > 0.24
x < 21.25 or x > 21.49 because |x − 0.24| + 21.25 > 0
Answers
Answer:
x < 21.01 or x > 21.49 because |x - 21.25| > 0.24
Step-by-step explanation:
We know that each pack of almonds is targeted to weigh 21.25 oz.and a pack must weigh within 0.24 oz of the target weight to be accepted.
Assuming x to be the weight of a given pack of almonds, we can write it as:
[tex]|x-21.25| > 0.24[/tex]
Now finding the range of rejected masses (x) of the almonds.
[tex]|x-a| >b[/tex]
[tex]-b<(x-a)< b[/tex]
[tex]|x-21.25| >0.24[/tex]
[tex]-0.24>(x-21.25)>0.24[/tex]
[tex]-0.24>x-21.25[/tex] or [tex]x-21.25>0.24[/tex]
[tex]x<21.01[/tex] or [tex]x>21.49[/tex]
Therefore, the correct answer option is x < 21.01 or x > 21.49 because |x - 21.25| > 0.24.
If you horizontally stretch the quadratic parent function, f(x)= x^2, by a factor of 4, what is the equation of the new function
Answers
Answer:
[tex]f(x) = \frac{1}{16}x^2[/tex]
Step-by-step explanation:
If the graph of the function [tex]y=f(hx)[/tex] represents the transformations made to the graph of [tex]y= f(x)[/tex] then, by definition:
If [tex]0 <h <1[/tex] the graph is stretched horizontally by a factor [tex]\frac{1}{h}[/tex]
If [tex]h> 1[/tex] the graph is compressed horizontally by a factor [tex]\frac{1}{h}[/tex]
In this problem we have the parent function [tex]y=x^2[/tex] And we know that it stretches horizontally by a factor of 4
Therefore
[tex]0 <h <1[/tex] and [tex]h=\frac{1}{4}[/tex]
The transformation is:
[tex]y=f(\frac{1}{4}x)[/tex]
And the function is:
[tex]f(x) = (\frac{1}{4}x)^2[/tex]
An irregular polygon has its external angles as 28°,40°,120°,142° and x. Find the value of x
Answers
Answer:
X=30
Step-by-step explanation:
The whole polygon is 360 degrees so:
360-28-40-120-142=X, which is 30
The value of x = 30°.
What is an exterior angles of an Irregular Polygon?
As in the case with a regular polygon, an irregular polygon even contains exterior angles that count up to 360°. Each exterior angle in an irregular polygon even exists (180° - its linear pair). Therefore the exterior angles add up to 360°.
The entire external angle is equal to 360.
28° + 40° + 120° + 142° + x = 360°
Simplifying the above equation, we get
330° + x = 360°
x = 360°- 330°
x = 30°
Therefore, the value of x = 30°.
To learn more about Irregular Polygon
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A ladder is 4 meters in length. Jonas places the ladder against a wall and it forms a 70 degree angle with the ground. What is the value of m, the approximate height in meters that the ladder reaches on the wall?
Answers
Answer:3.758
Step-by-step explanation:
Sin70= m/4
m= 4*sin70
m = 3.758
The diameter of a circle is 8. What is the area of the circle in terms of pi?
Answers
Answer:
16pi
Step-by-step explanation:
A=(pi)r^2
A=(pi) 4^2
A=16pi
Plz anwser!!!!!!!!!!!!!
Answers
Answer:
23.5
Step-by-step explanation:
x = 4 ; y = 5
x² + y³ = 4² + 5³ = 16 + 125 = 141
2 + x = 2 + 4 = 6
141 ÷ 6 = 23.5
PLEASE DO RATE ME AS BRAINLIEST UWU
Answer:
x² + y³ = 4² + 5³
= 16+ 125
= 141
2 + x =
2 + 4 = 6
your answer is
141 / 6 = 23.5
Step-by-step explanation:
how many centimeters is a piece of paper that measures 12 in
Answers
The answer is:
The piece of paper measures 30.48cm (centimeters)
Why?We need to convert from inches to centimeters, we can do it using the following convertion factor:
[tex]1in=2.54cm[/tex]
Now, calculating we have:
[tex]12in*\frac{2.54}{1in}=30.48cm[/tex]
Hence, we have that the piece of papers measures 30.48cm (centimeters)
Have a nice day!
Help me please please
Answers
It is in the hundredths place
Hundredths
Two places after the decimal is always the hundredths place.
A line segment has endpoints at 3,2 and 2,-3 which reflection will produce and image with endpoints at 3,-2 and 2,3
Answers
Answer:
A reflection across the x-axis.
Step-by-step explanation:
A reflection across the x-axis changes the signs of the y-coordinates like it does in the problem. (3, 2) becomes (3, -2) and (2, -3) becomes (2, 3).
I hope this helps!
ANSWER
Reflection in the x-axis
EXPLANATION
The given line segment has endpoints at (3,2) and (2,-3).
After this point are reflected the image points are:
(3,-2) and (2,3)
We can observe that the y-coordinates were negated to obtain the image points hence the mapping for the reflection is;
[tex](x,y)\to(x,-y)[/tex]
This is a reflection in the x-axis.
How many terms are in the algebraic expression -7+12x^4-5y^8+x? 1 2 3 4
Answers
Answer:
4
Step-by-step explanation:
-7+12x^4-5y^8+x
Terms:
1: -7
2: 12x^4
3: 5y^8
4: x
These are all different terms so there are 4
Write an algebraic expression in standard form for the shaded area of the following shape
Answers
Answer:
x² + 7x + 12
Step-by-step explanation:
The area of a rectangle = length × width
here length = x + 4 and width = x + 3, hence
A = (x + 4)(x + 3)
Each term in the second parenthesis is multiplied by each term in the first parenthesis.
A = x(x + 3) + 4(x + 3) ← distribute each parenthesis
A = x² + 3x + 4x + 12 ← collect like terms
A = x² + 7x + 12 ← in standard form
Solve for b in the equation –b + 21 = –13.
A. b = 9
B. b = –9
C. b = 34
D. b = –34
Answers
Answer:
C. b = 34
Step-by-step explanation:
Given
-b+21= -13
To solve this type of equations that only involve one variable, we have to isolate the variable at on side of the equation. So, for the given equation
We will subtract 21 from both sides
-b+21-21=-13-21
-b= -34
As the minus sign is on both sides of the equation, it will be cancelled and
b=34
So, option C is the correct answer ..
Move constant to the right and change the sign
-b = -13 - 21
Calculate the difference
-b = -34
Change the signs on both sides of the equation
So, b = 34
What is the order of the mcu?
Answers
If your talking about just movies then...
Captain America the first avenger
Captain marvel
Black widow
Iron man
Iron man 2
Thor
The Incredible Hulk
Avengers
Iron man 3
Thor the dark world
Captain America the winter soldier
Guardians of the galaxy
Guardians of the galaxy vol 2
Avengers age of ultron
Ant-man
Captain America civil war
Black panther
Spider-man homecoming
Doctor Strange
Thor the dark world
Ant-man and the wasp
Avengers infinity war
Avengers endgame
Spider-man far from home
But if you mean all the movies, tv shows, and one-shots then...
Captain America the first avenger
Agent carter season one
Agent carter season two
Agent carter (one-shot)
Captain marvel
Black widow
Iron man
Iron man 2
A funny thing happened on the way to Thor’s hammer (one-shot)
Thor
The Incredible Hulk
The consultant (one-shot)
Avengers
Item 47 (one-shot)
Iron man 3
All hail the king (one-shot)
Agents of S.H.I.E.L.D. Season one (episodes 1-7)
Thor the dark world
Agents of S.H.I.E.L.D. Season one (episodes 8-16)
Captain America the winter soldier
Agents of S.H.I.E.L.D. Season one (episodes 17-22)
Guardians of the galaxy
Guardians of the galaxy vol 2
Daredevil season one
Agents of S.H.I.E.L.D. Season two (episodes 1-10)
Jessica jones season one
Agents of S.H.I.E.L.D. Season two (episodes 11-19)
Avengers age of ultron
Agents of S.H.I.E.L.D. Season two (episodes 20-22)
Daredevil season two
Luke cage season one
Ant-man
WHIH newsfront season one
Agents of S.H.I.E.L.D. Season three (episodes 1-19)
Iron fist season one
Captain America civil war
WHIH newsfront season two
agents of S.H.I.E.L.D. Season three (episodes 20-22)
The defenders season one
Agents of S.H.I.E.L.D. Season four (episodes 1-6)
Black panther
Spider-man homecoming
Agents of S.H.I.E.L.D. Season four (episodes 7-8)
Agents of S.H.I.E.L.D. Slingshot season one
Agents of S.H.I.E.L.D. Season four (episodes (9-22)
Doctor strange
Thor ragnarok
Inhumans season one
The punisher season one
Runaways season one
Agents of S.H.I.E.L.D. Season five (episodes 1-10)
Jessica jones season two
agents of S.H.I.E.L.D. season five (episodes 11-18)
cloak and dagger season one
Luke cage season two
Iron fist season two
Daredevil season three
Ant-man and the wasp
Avengers infinity war
The punisher season two
Avengers endgame
Spider-man far from home
Jessica jones season three
The order as of now is:
Captain America: The First Avenger (2011)
Iron Man (2008)
The Avengers (2012)
Captain America: The Winter Soldier (2014)
Guardians of the Galaxy (2014)
Avengers: Age of Ultron (2014)
Captain America: Civil War (2016)
Spider-Man: Homecoming (2017)
Thor: Ragnarok (2017)
Ant-Man and The Wasp (2018)
Avengers: Infinity War (2018)
Algebraic Manipulation: Simplify 15x³ (y-z)² ÷ 10x⁻²(y²-z²)
Thank you!
Answers
Answer:
[tex]=\frac{3x^{5}(y-z)}{2(y+z)}[/tex]
Step-by-step explanation:
[tex]\frac{15x^3 (y-z)^2}{10x^{-2}(y^2-z^2)}[/tex] We need to solve this equation.
We know (x^2-y^2) = (x-y) (x+y)
Using the above formula, and taking 5 common:
[tex]=\frac{3x^3 (y-z)^2}{2x^{-2}(y^2-z^2)}\\=\frac{3x^{3+2} (y-z)^2}{2(y^2-z^2)}\\=\frac{3x^{5} (y-z)(y-z)}{2(y-z)(y+z)}\\=\frac{3x^{5}(y-z)}{2(y+z)}[/tex]
Andrew is paid $4 per hour for the first 30 hours he works each week. He makes $5 per hour for each hour he works over 30 hours per week. In other words, total wages = fixed wages for 30 hours + additional wages at $5 per hour. Apply function notation to answer the following questions about Andrew’s wages. Part A Write a function that gives Andrew’s total wages when he works more than 30 hours. Use the variables w for wages and h for hours.
Answers
Answer:
w = 120 + 5*(h-30)
Step-by-step explanation:
Part A;
We are informed that Andrew is paid $4 per hour for the first 30 hours he works each week and makes $5 per hour for each hour he works over 30 hours per week. This implies that the $4 per hour for the first 30 hours is fixed while the $5 per hour overtime depends on the number of extra hours worked.
If we let w denote the wage and h denote the hours worked per week, then;
$4 per hour for the first 30 hours; 4*30 = 120
The number of extra hours worked would be; h-30
w = 120 + 5*(h-30)
This is the function that gives Andrew’s total wages when he works more than 30 hours each week.
Which statistic gives the most meaningful information about the central tendency of the data {23, 25, 26, 26, 27, 29, 29, 30, 450, 450, 450}?
Answers
Answer:
The median. Since there are some values in the data set that are arger than most, if you used the mean, the mean would not be a very accurate representation of the data set. When using median, the large numbers do not greatly effect the data set.
Step-by-step explanation:
Write and solve the equation.
The sum of a number and twelve is thirty-five.
Which equation and solution is correct?
Write the equation as x – 12 = 35 and add 12 to both sides. The answer is 47.
Write the equation as x + 12 = 35 and subtract 12 from both sides. The answer is 23.
Write the equation as x + 12 = 35 and subtract 12 from 12. The answer is 35.
Write the equation as x – 12 = 35 and add 12 to 12. The answer is 24.
Answers
Answer:
B: x + 12 = 35 and subtract 12 from both sides. The answer is 23.
Step-by-step explanation
Equation of 'The sum of a number and twelve is thirty-five' is x + 12 = 35 and the solution is 23
How to write and solve the equation?Let the number be x
the sum of the numbers x and 12 means x + 12
The sum of a number x and 12 is 35 means x + 12 = 35
solution of x +12 = 35x + 12 = 35
subtract 12 from both sides
x + 12 - 12 = 35 - 12
x = 23
Therefore, the correct option is 'Write the equation as x + 12 = 35 and subtract 12 from both sides. The answer is 23.'
To learn more about solving equations, refer:
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Express this decimal as a fraction.
Answers
Answer:
[tex]\large\boxed{1.\overline{21}=\dfrac{40}{33}}[/tex]
Step-by-step explanation:
[tex]x=1.\overline{21}\\\\x=1.212121...\qquad\text{multiply both sides by 100}\\\\100x=121.212121...\\\\\text{subtract x from 100x}\\\\100x-x=121.212121...-1.212121...\\\\99x=120\qquad\text{divide both sides by 99}\\\\x=\dfrac{120}{99}\\\\x=\dfrac{120:3}{99:3}\\\\x=\dfrac{40}{33}[/tex]