Let f(x)=x^2−2x−4.
What is the average rate of change for the quadratic function from x=−1 to x = 4?
Enter your answer in the box.
Why do some of the questions I type. Don't pop up any answers?
Answer:
how am i supposed to know
Step-by-step explanation:
4 Anderson earned $36,800 in taxable income last year. According to his tax
table, he should pay $922.50 plus 15% of the amount over $9,225. How much
income tax will Anderson owe?
Answer:
$1556.25
Step-by-step explanation:
If m(x) = x2 3 and n(x) = 5x 9, which expression is equivalent to (mn)(x)? 5x3 9x2 15x 27 25x2 90x 84 x2 5x 12 5x2 24
The expression that is equivalent to m(n(x)) is [tex]25x^{2} +90x+84[/tex].
It is given that
[tex]m(x) = x^{2} +3\\n(x) = 5x+9[/tex]
If there are two functions f(x) and g(x), how f g(x) will be calculated?If there are two functions f(x) and g(x), f(g(x)) will be obtained by replacing x by g(x) into f(x).
So, [tex]m (n(x))= (5x+9)^2+ 3[/tex]
[tex]m (n(x))= 25x^{2} +81+90x +3[/tex]
[tex]m (n(x))= 25x^{2} +90x+84[/tex]
Therefore, the expression that is equivalent to m(n(x)) is [tex]25x^{2} +90x+84[/tex].
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Answer:
b
Step-by-step explanation:
HELPPP!!! QUICK
Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the quadrilateral. You must use the fact that opposite angles in a quadrilateral are supplementary.
Show me:
(a) supplementary equation used to solve for x (1 point)
(b) all math used to calculate for x (1 point)
(c) correct value for x (1 point)
(d) plugging x into expressions for angles A, C, D (1 point)
(e) show all math used to calculate the measures of angles A, C, D (2 points)
(f) all math used to calculate the measure of angle B (1 point)
Answer:
see image
Step-by-step explanation:
Supplementary means the angles add up to 180°.
Add the given angles and set equal to 180°
To solve, combine like terms, add 10, divide by two to get x all by itself.
Replace x with 95 to find the measures of Angles A, C, D.
Use the supplementary definition a second time to find the measure of Angle B.
see image.
MARKING BRAILIEST!!!! Select the statement that describes this expression: 13 + fraction 1 over 2 x (6 ÷ 2 + 6)
a: 13 more than half of 6 more than the quotient of 6 and 2
b:13 more than half of the quotient of 6 and 6 minus 2
c:Half of 13 multiplied by the quotient of 6 and 2 plus 3
d:13 plus half of 6 divided by 2, then subtract 6
Answer: D
You get the same answer from doing both!
Answer:
a
Step-by-step explanation:
Find the quadratic equation given that the roots are 3 and 9
Answer:
[tex]\bold\purple{Quadratic \: \: eq {}^{n} = x {}^{2} - ( \alpha + \beta )x + \alpha \beta} \\ [/tex]
Sum of roots ,
[tex]( \alpha + \beta ) = (3 + 9) = 12[/tex]
Product of roots ,
[tex]( \alpha \beta ) = (3)(9) = 27[/tex]
Substituting the values in the above equation ,
[tex]\bold{x {}^{2} - ( \alpha + \beta )x + \alpha \beta} \\\\ \bold{⇢ x {}^{2} - (12)x + 27} \\\\ \bold\blue{ ⇢x {}^{2} - 12x + 27}[/tex]
hope helpful~
by the way need to show the work.
Answer:
angle 2 is 85
Step-by-step explanation:
since its facing the 85
Answer:
Answer:1 is 95°
2 is 85°
3 is 95°
Step-by-step explanations
opposite angles are equal so 2 is 85° 95°Step-by-step explanation:directly opposite angles are equal so 2 is 85angles on a straight line add up to 180°
Answer:1 is 95°2 is 85°3 is 95°Step-by-step explanation:directly opposite angles are equal so 2 is 85angles on a straight line add up to 180° so 3 is 180-85=95°
Answer:1 is 95°2 is 85°3 is 95°Step-by-step explanation:directly opposite angles are equal so 2 is 85angles on a straight line add up to 180° so 3 is 180-85=95°then 3 is directly opposite to 1 so both are 95
Answer:1 is 95°2 is 85°3 is 95°Step-by-step explanation:directly opposite angles are equal so 2 is 85angles on a straight line add up to 180° so 3 is 180-85=95°then 3 is directly opposite to 1 so both are 95 I hope you're helped?
Kelly invested $5,000 in a cd at charter bank. the annual rate is 4.9% compounded monthly. how much is her investment at the end of 8 years? round to the nearest hundredth.
The investment of the kelly at the end of 8 years is $7393.78.
What will be the investment of kelly at the end of 8 years?It is given that
The principle P= $5000
rate of interest R=4.9%
The rate is compounded monthly so
[tex]CI=P(1+\dfrac{R}{12}^{12t} )[/tex]
By putting the value
[tex]CI= 5000\times (1+\dfrac{0.049}{12}^{12\times8} )[/tex]
[tex]CI=7393.78[/tex]
Thus the investment of the kelly at the end of 8 years is $7393.78.
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What are the terms in the expression 7x + 4y + 1?
Answer:
7x, 4y
Step-by-step explanation:
terms are numbers with variables in expressions. usually able to count because + and - split them
Javier got a new job recently and wonders how many outfit
combinations he can wear to work. The table below shows all of
his items of clothing.
Pants
Shirts
Socks
Ties
Black
White
Black
Blue
Grey
Blue
Brown
Red
Yellow
Grey
Black
Grey
How many different outfits can Javier create for work?
O 72
O 12
O 4
O 16
Please y’all got to answer this please?
Answer:
4 maybe??...
Step-by-step explanation:
I really dunno P-P
Which is not a way to find 9/16
Answer:
a way to not find the answer is to do anything but divide 9 by 16
Step-by-step explanation:
hope this helps, brainliest appreciated :)
Please help! I will give brainliest.
Step-by-step explanation:
= a_(n-1) x 1.5
1.5a_(n-1)
A farmhouse shelters 20 animals. Some are pigs and some are ducks. Altogether there are
46 legs. How many of each animal are there?
Answer:
7 pigs and 9 ducks.Their are many other answers to this question this is one of the ones that are correct.
Toby thinks of a number less than 15. He divides it by 2 and then he adds 4. He then divides it by 3. His answer is 3.5
Answer:
13
Step-by-step explanation:
For this problem, work backwards to determine what the starting number was. Take 3.5 and multiply it by 3 to get 10.5, then subtract 4 to get 6.5. Finally, multiply 6.5 by 2 to get the starting number, which is 13. To check your work, you can always take 13 and perform the operations to make sure you end up with 3.5.
Hopefully this helps- let me know if you have any questions!
Select the correct answer. The perimeter of a triangle is 30 units. If it’s is dilated with respect to origin by a scale factor of 0.5, what is the perimeter of the resulting triangle?
Answer: 15
Step-by-step explanation:
We know that the scale factor of the dilation is the ratio of similtude, and that the ratio of similitude is equal to the ratio of the perimeters. So, the new perimeter is 30(0.5)=15.
please help! I need to get my grade up before I get put in lunch detention.
Answer:
it is a pattern. 8: add 1. 9: multiply m by 3 to get n
Given a polynomial function f(x) = 2x2 – 3x + 5 and an exponential function g(x) = 2% – 5, what key features do f(x) and g(x) have in common?
A. Both f(x) and g(x) have the same domain of (0, -60).
B. Both f(x) and g(x) have the same range of [0,-).
C. Both f(x) and g(x) have the same x-intercept of (2,0).
D. Both f(x) and g(x) increase over the interval of (-4,-).
A. Both [tex]f(x)[/tex] and [tex]g(x)[/tex] have the same domain of [tex](9, +\infty)[/tex].
How to analyze similarities in two functions
In this question we must analyze the domain, range, x-intercepts and increase intervals:
Domain[tex]Dom \{f(x)\} = \mathbb{R}[/tex]
[tex]Dom \{g(x)\} = \mathbb{R}[/tex]
Both functions are continuous.
Range[tex]Ran \left\{f(x)\right\} = (3.875, +\infty)[/tex]
[tex]Ran \{g(x)\} = (-5, +\infty)[/tex]
x-Intercepts[tex]f(x):[/tex] [tex](x,y) = \emptyset[/tex]
[tex]g(x):[/tex] [tex](x,y) = (2.322, 0)[/tex]
Increase intervals[tex]f(x):[/tex] According to the graph, [tex]f(x)[/tex] increase over the interval of [tex](3.875, + \infty)[/tex].
[tex]g(x) :[/tex] According to the graph, [tex]g(x)[/tex] increase over the interval of [tex]\mathbb{R}[/tex]
After a quick analysis, we conclude that option A offer the best approximation to characteristics of both functions. [tex]\blacksquare[/tex]
RemarkThe statement presents mistakes and is poorly formatted. Correct form is:
Given a polynomial function [tex]f(x) = 2\cdot x^{2}-3\cdot x + 5[/tex] and an exponential function [tex]g(x) = 2^{x}-5[/tex]. What key features do [tex]f(x)[/tex] and [tex]g(x)[/tex] have in common?
A. Both [tex]f(x)[/tex] and [tex]g(x)[/tex] have the same domain of [tex](9, +\infty)[/tex].
B. Both [tex]f(x)[/tex] and [tex]g(x)[/tex] have the same range of [tex](-\infty, 0][/tex].
C. Both [tex]f(x)[/tex] and [tex]g(x)[/tex] have the same x-intercept of [tex](2,0)[/tex].
D. Both [tex]f(x)[/tex] and [tex]g(x)[/tex] increase over the interval of [tex](-4, +\infty)[/tex].
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Mr.Maar received 18 packages contained 5 crayons for his classroom. Each package 5 crayons. Write an equation that show the total amount of crayons (t) Mr. Maar has.
Yes I suck in math HELP PLEASE
Fill in the blank to describe this expression:
8n
eight______ a number
A. multiplied by
B. added to
C. divided by
D. less than w
Answer:
A. multiplied by
Step-by-step explanation:
For example, sub n = 2
8(2) = 16
Hello.
The correct word is "multiplied by"
Eight multiplied by a number n equals 8n.
Remember that
[tex]\bigstar[/tex] We always write the number next to the variable.
[tex]\bigstar[/tex] We write the number and the variable together.
Can we write 8×n? Sure! However, we usually write it as
8n
Therefore, the correct answer is "[tex]\mathrm{multiplied\:by}[/tex]"
I hope it helps.
Have a great day.
[tex]\boxed{imperturbability}[/tex]
Factor completely 16x2 − 25. (4x − 5)(4x − 5) (4x 5)(4x − 5) (16x 5)(x − 5) (16x − 5)(x 5)
Can someone help me with this please?
Answer: See below
Step-by-step explanation:
[tex]\begin{bmatrix}y=x^2-20x+73\\ y=-3x+3\end{bmatrix}[/tex]
[tex]\mathrm{Subtract\:the\:equations:}[/tex]
[tex]y=x^2-20x+73[/tex]
[tex]-[/tex]
[tex]\underline{y=-3x+3}[/tex]
[tex]y-y=x^2-20x+73-\left(-3x+3\right)[/tex]
[tex]\mathrm{Simplify:}[/tex]
[tex]0=x^2-17x+70[/tex]
[tex]x^2-17x+70=0[/tex]
[tex]\mathrm{Solve\:with\:the\:quadratic\:formula}[/tex] [tex]\mathrm{for\:}\ a=1,\:b=-17,\:c=70:[/tex]
[tex]x_{1,\:2}=\frac{-\left(-17\right)\pm \sqrt{\left(-17\right)^2-4\cdot \:1\cdot \:70}}{2\cdot \:1}[/tex]
[tex]x_{1,\:2}=\frac{-\left(-17\right)\pm \:3}{2\cdot \:1}[/tex]
[tex]\mathrm{Separate\:the\:solutions:}[/tex]
[tex]x_1=\frac{-\left(-17\right)+3}{2\cdot \:1},\:x_2=\frac{-\left(-17\right)-3}{2\cdot \:1}[/tex]
[tex]\mathrm{The\:solutions\:to\:the\:quadratic\:equation\:are:}[/tex]
[tex]x=10,\:x=7[/tex]
[tex]\mathrm{Plug\:the\:solutions\:}x=10,\:x=7\mathrm{\:into\:}y=x^2-20x+73:[/tex]
[tex]\mathrm{For\:}y=x^2-20x+73\mathrm{,\:subsitute\:}x\mathrm{\:with\:}10[/tex]
[tex]y=10^2-20\cdot \:10+73[/tex]
[tex]y=10^2-200+73[/tex]
[tex]y=100-127[/tex]
[tex]y=-27[/tex]
[tex]\mathrm{For\:}y=x^2-20x+73\mathrm{,\:subsitute\:}x\mathrm{\:with\:}7[/tex]
[tex]y=7^2-20\cdot \:7+73[/tex]
[tex]y=7^2-140+73[/tex]
[tex]y=49-67[/tex]
[tex]y=-18[/tex]
[tex]\mathrm{Therefore,\:the\:final\:solutions\:for\:}y=x^2-20x+73,\:y=-3x+3\mathrm{\:are\:}:[/tex]
[tex]\begin{pmatrix}x=10,\:&y=-27\\ x=7,\:&y=-18\end{pmatrix}[/tex]
Answer:
bbbbb
Step-by-step explanation:
A triangle has an area of 2400cm^2. The angle between two adjacent sides of the triangle is 150°. If the length of one of the adjacent sides is 65cm, calculate the length of the other side correct to 3 significant figures.
Answer: 73.9
Step-by-step explanation:
What is 30% of 20? Please help
Answer:
the answer is x=6
Step-by-step explanation:
Write a real word situation that would require an exact answer
Answer:
Julie has 5 bunnies. She looses 2. How many bunnies does she have now?
Answer: 3 bunnies left
RIP BUNNIES!!
If you wanted a harder one, then please, be more specific.
Factor the following polynomials by finding a GCF.
Answer:
5mn(2m + 6n + 1)
Step-by-step explanation:
Look at the coefficients (the numbers): 10, 30, 5
The greatest common factor of 10, 30, and 5 is 5.
Now look at the variable parts of the three terms.
Start with the variable m.
There is m², m, and m.
The GCF of m², m, and m is m.
Now look at the variable n.
There is n, n², n.
The GCF on n, n², and n is n.
The GCF for the entire polynomial is 5mn.
Now we factor out 5mn from all terms.
To factor out 5mn, you divide each term by the GCF, 5mn.
10m²n + 30mn² + 5mn = 5mn(2m + 6n + 1)
On a trip Joel drove 25 miles more than half the number of miles
Rita drove. Together they drove 340 miles. How many miles did
Joel drive?
Answer:
194
Step-by-step explanation:
you would do 340 divided by 2 and that gets you 170 then you would subtract 24 from Rita and that is 146 so Rita drove 146 miles. then for Joel you add 170 +24 = 194. So Joel drove 194 miles.
All of the quadrilaterals in the shape below are squares. Find the area of the shaded
region.
4
6
The area of shaded region is 32 square units.
What is area ?"The area can be defined as the space occupied by a flat shape or the surface of an object. The area of a figure is the number of unit squares that cover the surface of a closed figure. The area is measured in square units such as square centimeters, square feet, square inches, etc."
To find the area of the shaded region
1. Find the area of the biggest square ([tex]A_{1}[/tex])
Formula for area of a square
[tex]A_{1}[/tex] = side × side
⇒[tex]A_{1}[/tex] = 10×10
⇒[tex]A_{1}[/tex] = 100 square units.
2. Find the area of the unshaded region ([tex]A_{2}[/tex])
[tex]A_{2}[/tex] = X(biggest square)+ 2.Y(smallest square)
⇒[tex]A_{2}[/tex] = [tex](6[/tex]×[tex]6)[/tex] + [tex]2(4[/tex]×[tex]4)[/tex]
⇒[tex]A_{2} =36+2.(16)[/tex]
⇒[tex]A_{2}=68[/tex] square units
3. Find the difference of [tex]A_{1}[/tex] and [tex]A_{2}[/tex]
Area of the shaded part = [tex]A_{1}[/tex] - [tex]A_{2}[/tex]
= 100-68
= 32 square units.
Hence, The area of shaded region is 32 square units.
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Guys, I’m giving you at least 86 points for you to answer to my last month of my math word problem homework package from The Hung Vuong Learning Centre Incorporated! So guys, please listen up and pay attention to me without ignoring my last month’s math homework package from The Hung Vuong Learning Centre Incorporated for no reason! :D
The question #7 is the difference between the number of the girls and the number of the boys in the outdoors club is 12. There are 4 times the number of the girls decreased by 25 equals 3 times the number of the boys. Please help me as soon as possible to find the number of the girls and the number of the boys in the club.
Please answer to my math word problem question as soon as possible with the best efforts and the best step-by-step explanations in order to get the Brainliest award of all the time! :D
Well anyways, guys, good luck on answering my math word problem question of my last month of my math word problem homework package from The Hung Vuong Learning Centre Incorporated in order to get the best Brainliest award of all of the time, and I will check the answers to see if it’s appropriate for me. :)
Answer:
girls = 61
boys = 73
Step-by-step explanation:
Let x = number of girls
Let y = number of boys
Given the difference between the number of the girls and the number of the boys in the outdoors club is 12:
⇒ y - x = 12
Given there are 4 times the number of the girls decreased by 25 equals 3 times the number of the boys:
⇒ 4x - 25 = 3y
Rearrange x - y = 12 to make y the subject:
⇒ y = 12 + x
Substitute x = 12 + y into 4x - 25 = 3y and solve for y:
⇒ 4x- 25 = 3(12 + x)
⇒ 4x- 25 = 36 + 3x
⇒ x = 61
Now we have found the value of x, substitute this into y = 12 + x and solve for y:
⇒ y = 12 + 61
⇒ y = 73
4 students is ____% of 20 students
Answer:
20%
Step-by-step explanation:
20 * 20% = 4
or you can change it to a decimal
20 * .2 = 4
hope this helped! :)