Do you agree with the statement that " cubic functions must have at least 1 x-intercept but not more than 3, whereas quadratic functions may or may not have x-intercepts
Answer:
Yes, I agree
Step-by-step explanation:
For the cubic function
A cubic function is represented as:
[tex]f(x)=ax^3+bx^2+cx+d[/tex]
A cubic function may have 1, 2 or 3 x intercepts. This is shown below
For 3 x intercepts
[tex]y = x^3 - x[/tex]
Equate y to 0
[tex]x^3 - x = 0[/tex]
Expand
[tex]x(x^2 - 1) = 0[/tex]
Express [tex]x^2 - 1[/tex] as difference of two squares
[tex]x(x - 1)(x +1 ) = 0[/tex]
x = 0 or 1 or -1
For 2 x intercepts
[tex]y = x^3 - x[/tex]
[tex]y =(x-5)^2)(x+7)[/tex]
Equate y to 0
[tex](x-5)^2(x+7) = 0[/tex]
Expand
[tex](x-5)(x-5)(x+7) = 0[/tex]
x= 5 or x = -7
For 1 x intercept
[tex]y = x^3[/tex]
Equate y to 0
[tex]x^3 = 0[/tex]
Take cube roots of both sides
[tex]x = 0[/tex]
It has been shown above that a cubic function may have 1, 2 or 3.
So, I agree to the statement
For the quadratic function
A quadratic function will not have any x intercept when the function can not be factorized;
E.g.
[tex]y = x^2 + x + 17[/tex]
The above function has no x intercept.
A quadratic function will have at least 1 x intercept when the function can be factorized;
E.g.
[tex]y = x^2- 6x + 9[/tex]
Equate y to 0
[tex]x^2- 6x + 9 = 0[/tex]
Expand
[tex]x^2 - 3x - 3x + 9 = 0[/tex]
[tex](x - 3)(x-3) = 0[/tex]
[tex]x = 3[/tex]
We've shown that a quadratic may have no x intercept, and it may also have x intercept(s)
Hence, I agree to both statement
Find the value of x. Then classify the triangle by its angles.
Hello, look at the picture I established at the bottom I will be giving you thanks, 5 stars, and brain least, Thank you. Have a nice afternoon!
Answer:
I think B 10 diamond and 12 circles
Step-by-step explanation:
List down 3 biotic and 3
abiotic components of
ecosystem mentioned in
the video clip. From the
given examples, how do
they affect other
organisms in the
community in this time of
pandemic?
(a - ab) / a² ÷ a - 1 / a³
Answer:
Image below. :)
Explanation:
Which choices describe the number of acorns?
Answer: D
Step-by-step explanation:
Because if you count from the tup to bottom their is 4 and if you count from top to right its 5 so its... 5 x 4.
IM NOT GOOD AT EXPLAINING ... CAN SOMEONE HELP ME EXPLAIN ?...
Answe my uuuuuuttt
Step-by-step explanation:
The diagram below models the diameter of the bicycle wheel
21.75
Which of the following is closest to the distance of the length when the bicycle wheel
makes 1 revolution?
A7 inches
B 25 inches
C34 inches
D69 inches
Can anyone help me!!
A family eats at a restaurant. The bill, including tax, is $45. The family then leaves a 20% tip. How much did the family spend on the meal? *
Answer:
$54
Step-by-step explanation:
45 increase 20% =
45 × (1 + 20%) = 45 × (1 + 0.2) = 54
Help 69 points
36 - 7p = -7 ( p - 5)
a) No Solution
b) One Solution
c) Infinite Solutions
Answer:
a) No Solution
Step-by-step explanation:
36 - 7p = -7(p - 5)
36 - 7p = -7p + 35
1 - 7p = -7p
1 = 0p
so a) No Solution
Answer:
[tex]36 - 7p = - 7(p - 5) \\ 36 - 7p = - 7p - 7 \times - 5 \\36 - 7p = - 7p + 35 \\ p \: terms \: togather \\ - 7p + 7p = 35 - 36 \\ 0p = - 1 \\ here \: we \: \: have \: 0p \\ so \: no \: solution \\ option(a) \\ thank \: you[/tex]
Your cousin borrows $1125 to repair her car. The simple annual interest rate is 10%. She makes equal monthly payments of $25. How many years will it take to pay off the loan? (PLSSS HELP)
Answer:
Step-by-step explanation:
Your cousin borrows $1125 to repair her car. The simple annual interest rate is 10%. She makes equal monthly payments of $25. How many years will it take to pay off the loan? (PLSSS HELP)
Given data
P=$1125
R=10%= 0.1
I= $25
We know that
I=PRT
A linear relationship that is proportional goes through the ?
Answer:
origin
Step-by-step explanation:
A directly proportional linear relationship will always go through the origin (0,0).
Answer:
it goes throught the origin.
Step-by-step explanation:
A non-proportional graph is a straight line that does not go through the origin.
Find the value of x. Please respond ASAP
Answer:
I think its c but im not sure
In order to get an A in science,jack needs to get a 92% on his next test.If test has 30 questions.What is the minimum number he must have answered correctly.
Answer:
He would need to get a minimum of 28 questions correct.
Step-by-step explanation:
92% of 30 is 27.6 but you cant really get .6 of a question right, so you would need to round. Which makes it 28.
solve using a2 + b2 = c2
show the work please :)
Answer: 19.20937
Step-by-step explanation:
a2=15
b2=12
c2=?
a2+b2=c2
15(15)+12(12)= c2
225+ 144=c2
√369= √c2
≐19.20937 ft
3√41
solve using a2 + b2 = c2
show work please :)
Answer:
Step-by-step explanation:
h^2=x^2+y^2 which just means the the hypotenuse of a right triangle squared is equal to the sum of its squared sides.
[tex]h^2=10^2+15^2\\ \\ h^2=100+225\\ \\ h^2=325\\ \\ h=\sqrt{325}\\ \\h=5\sqrt{13}\\ \\ h\approx 18.03[/tex]
h=
How do you estimate percentage.
Step-by-step explanation:
To estimate percentage I would round up the numbers to the nearest neat number? like 10 or 15 for example and then find the percentage of that number.
help asap i will brainlist
Answer:
8-3n
The way you know is 8 is the hidden word....
in there and it say 3 times nathans...
So you will take n and times it bye 3..
by doing 3n so 8-3n is your anwser...
Pwease Mark me Brainliest TY OwO
Roman and Ranjan each divided 3.56 by 0.72. Roman got 4.94 for his quotient. Ranjan got 0.04 for his quotient. Which student divided correctly? How do you know? P 7•3
Answer:
Step-by-step explanation:
It’s Roman if you do the math you will get 4.94
How would you know
When doing the math i got the answer 4.94 which that mean ranjan divide wrong
Please help out if you can-!
Answer:
the answer is 0.89
Step-by-step:
the first boxes under 62 will be 56
the second box under 56 will be 63
the 3rd boxes will be will be 63
the very top boxes will be 0.89
Determine the number of solutions of the system.
y = 2x - 1
y = -2x + 3
Leandro wants to estimate the proportion of light bulbs that arrive broken upon shipment to his store. He
takes a random sample of 500 bulbs and finds that 25 arrived broken. He's willing to assume independence
between bulbs in the sample.
Answer:0.05+1.645v0.05(0.95)/500
Step-by-step explanation:
Jessica has 180 inches of ribbon. How many yards of ribbon does she have?
15 yards
5 yards
10 yards
60 yards
Answer:
5 yards
Step-by-step explanation:
1 yard = 36 inches
yard to inches = multiply by 36
inches to yard = divide by 36
180/36 = 5 yards
What is the value of x?
Enter your answer in the box.
x =
in.
Answer:
15 I think
Step-by-step explanation:
Pls dont quote that tho sry
I need help on my warm up!! pls thx!
Step-by-step explanation:
[tex] \tt{30.16 = 17.56 + 5x} [/tex]
Swap the sides of the equation :
⤑ [tex] \tt{17.56 + 5x = 30.16}[/tex]
We want to remove the 17.56 first.
Since the original equation is 17.56 , we are going to use the opposite operation and subtract 17.56 from both sides :
⤑ [tex] \tt{5x + 17.56 - 17.56 = 30.16 - 17.56}[/tex]
Simplify. 17.56 - 17.56 = 0 on the left. 30.16 - 17.36 = 12.6 on the right.
⤑ [tex] \tt{5x = 12.6}[/tex]
Then, we need to think about how to remove the coefficient 5. Since the opposite of multiplication is division , I am going to divide both sides by 5.
⤑ [tex] \tt{ \frac{5x}{5} = \frac{12.6}{5}} [/tex]
Simplify. 5/5 = 1 on the left and 12.6/5 = 2.52 on the right. So, Our answer is x = 2.52.
[tex] \pink{ \boxed{ \boxed { \tt{Our \: final \: answer : \underline{ \underline{ \bold{ \tt{x = 2.52}}}}}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
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find the length of the missing side Geometry
7.
Since it is a right triangle we can use Pythagorean Theorem to solve.
A^2+B^2=C^2
We are given C and B. We are solving for A, so we can input what we know.
A^2+24^2=25^2
A^2+576=625
A^2=49
A=7
Therefore, the missing side is equal to 7.
If a liquid has a volume of 7,000 milliliters, what is the volume in liters?
A)7 liters
B)70 liters
C)700 liters
D)700,000 liters
Answer:
7 Liiters
Step-by-step explanation:
Hal earns $5 a week doing chores for his parents. He also earns $10 a week for each dog.d, he walks,
Write an equation to find m, the total amount of money Hal earns in one week. Which variable in the equation is the dependent variable and which variable is the independent variable? Tell how you know
Answer:
grpuirpfs better luck next time
Step-by-step explanation:
Answer:
M=10d+5
Step-by-step explanation:
6 = 2 (y + 2) what is the value of the y
Answer:
Step-by-step explanation:
6=2(y+2)
6=2y+4
2=2y
y=1
Answer:
1
Step-by-step explanation:
1+2=3
2(3)= 2x3=6
There ya go
QUICK PLEASE I WILL GIVE BRAINlYIST
i need help. can anybody help me
Answer:
positive 1/2
Step-by-step explanation:
Answer:
0.5
Step-by-step explanation:
3-2/0-2= 0.5