Use the function f(x) to answer the questions: f(x) = 2x^2 − x − 10
Part A: What are the x-intercepts of the graph of f(x)? Show your work. (2 points)
Part B: Is the vertex of the graph of f(x) going to be a maximum or a minimum? What are the coordinates of the vertex? Justify your answers and show your work. (3 points)
Part C: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part A and Part B to draw the graph. (5 points)
Answers
(1/4,f(1/4)) = (1/4,-81/8)
Related Questions
Find the measure of the angle. (final)
Answers
Answer:
39˚
Step-by-step explanation:
The whole thing is a right angle, and we know that because of the square thing at the top.
These two angles are complementary, so we can subtract 51 from 90.
90-51=39˚
plss help mee
Show your work and not just the answer thank you
If two people share three hamburgers, how much should each person get?
Answers
If two people shared three hamburgers then each person would get one hamburger and a half. Since there are two people and three hamburgers, both people can get one hamburger and split the third. In decimal form, It would be 1.5
Answer:
The answer is 3 because 6÷2 which equal 3 which is represent the three hameburgers and 6÷2=3 because there would be 6 hamburgers to share between two people.
Find the area of the figure. (Sides meet at right angles.)
2 ft
2 ft
\ ft
bft
8 ft
8 ft
4 ft
8 ft
Answers
Answer:
44 ft²Step-by-step explanation:
A1 = 2(5 x 2) = 20
A2 = 8 x 3 = 24
total = 20 + 24
= 44 ft²
Write the equation of the line that passes through the points (-5,1) and (5,8). Put
your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answers
Answer:
slope m = (y₂ - y₁) / (x₂ - x₁)
= (8 - 1) / (5 - (-5))
m = 7/10
y-intercept using slope above and anyone of given point. Let's use (-5, 1):
y = mx + b
1 = 7/10(-5) + b
1 = -35/10 + b
b = 45/10
b = 9/2
Equation of line:
y = mx + b
y = 7/10x + 9/2
Point slope form:
y - y₁ = m(x - x₁)
y - 1 = 7/10(x - (-5))
y - 1 = 7/10(x + 5)
2 mangoes cost $3.00 at the store. What is the cost per mango?
Answers
Answer:
1 mango = $1.50
Step-by-step explanation:
2 mangoes - $3
1 mango - $?
3 / 2 = 1.5
So:
1 mango = $1.50
Hope this helped!
(Let me know if I got something wrong!)
Answer: $1.50
Step-by-step explanation:
The total cost of mangoes cost $3.00, and the person bought two.
To find the cost per mango, you can divide 3 by 2.
3/2 is 1.5, so each mango costs $1.50
hope this helped :)
20. Which student's score was closest to
average?
pls answer ASAP I will make you brainist however you spell it
Answers
Answer:
CStep-by-step explanation:
Comparing the difference with the average in absolute value
3, 4, 2, 5, 7The smallest number is 2 indicating the closest to average score
Matching student is C
2|x+7|-10>14
Inequality
Answers
Answer: x>5 or x<−19
2/3 of the students in Sarah’s class are boys. Of the boys, 1/3 of them wear glasses. What fraction of the students are boys that wear glasses? Choose the model that matches the situation.
Answers
Answer:
1/3 of the boys of course
Answer:
chosse the box that is 3x3 in width and has 1 shaded in
Step-by-step explanation
If y varies directly as x, and x =9 when y =15, Find y when x =21
Answers
y = x
15 = 9
y = 21
9y = 315
y = 315/9
y = 35
Answer:
35
Step-by-step explanation:
y is propotional to x, means, if x changes, y changes.
Considering, y depends on x only. Introduce a constant.
y = kx
When x = 9, y = 15,
=> 15 = k(9) => 5/3 = k
When x = 21, note that k is constant.
=> y = kx = (5/3)*21
= 35
can anybody explain how to subtract mixed fractions?
Answers
Answer:
convert the mixed fractions to improper fractions (where the numerator is greater than or equal to the denominator): multiply the whole number part by the fraction's denominator, add that to the numerator, write the result on top of the denominator.if the denominators are not the same, work out the common denominator and rewrite the fractions with the same denominatorssubtract by subtracting the numerators and writing the result over the denominatorconvert back to mixed fractions by dividing the numerator by the denominator, write down the whole number answer, write down the remainder above the denominator.
Example
[tex]3\frac23-1\frac45[/tex]
convert to improper fractions:
[tex]\dfrac{3 \times 3+2}{3}-\dfrac{1 \times 5+4}{5}=\dfrac{11}{3}-\dfrac{9}{5}[/tex]
common denominator = 3 × 5 = 15, so:
[tex]\dfrac{11}{3}-\dfrac{9}{5}=\dfrac{11\times 5}{3\times 5}-\dfrac{9\times 3}{5\times 3}=\dfrac{55}{15}-\dfrac{27}{15}[/tex]
subtract:
[tex]\dfrac{55}{15}-\dfrac{27}{15}=\dfrac{55-27}{15}=\dfrac{28}{15}[/tex]
convert back to mixed fractions:
[tex]28 \div 15=1 \textsf{ remainder }13=1 \frac{13}{15}[/tex]
To subtract mixed fractions, we must follow the steps:
Convert the mixed fraction to improper fraction.2. Multiply the denominator and the numerator by the LCM of the denominators to make the denominators same. P.S: (If the denominators are the same, you can skip this step).
3. Simplify the fractions. (The denominators do not change).
4. (Optional) Convert the fractions to mixed fraction.
Solving an example:Let's take an example.
⇒ [tex]4 \frac{2}{5} - 3 \frac{3}{8}[/tex]Step-1: Convert the fractions to improper fraction:
⇒ [tex]4 \frac{2}{5} - 3 \frac{3}{8}[/tex]⇒ [tex]\frac{(4)(5) + 2}{5} - \frac{(3)(8) + 3}{8}[/tex]⇒ [tex]\frac{20 + 2}{5} - \frac{24+ 3}{8}[/tex]⇒ [tex]\frac{22}{5} - \frac{27}{8}[/tex]Step-2: Make the denominators same:
⇒ [tex]\frac{22}{5} - \frac{27}{8}[/tex]⇒ [tex]\frac{(22)(8)}{(5)(8)} - \frac{(27)(5)}{(8)(5)}[/tex]⇒ [tex]\frac{176}{40} - \frac{135}{40}[/tex]Step-3: Subtract:
⇒ [tex]\frac{176}{40} - \frac{135}{40}[/tex]⇒ [tex]\frac{41}{40}[/tex]Step-4: Convert the fraction to mixed fraction:
⇒ [tex]\frac{41}{40}[/tex]⇒ [tex]\frac{40}{40} + \frac{1}{40}[/tex]⇒ [tex]1 + \frac{1}{40}[/tex]⇒ [tex]1\frac{1}{40}[/tex]c. Describe how you could compare the corresponding sides and angles of
figure WXUY and its image, figure STUV.
Answers
Step-by-step explanation:
please provide the figure. without the figure cannot find the answer
If one angle of an equilateral triangle was 60 degrees, then what is the angle of the other two?
Answers
Step-by-step explanation:
All angli in linl trirea
A survey of athletes at a high school is conducted, and the following facts are discovered: 21% of the athletes are football players, 27% are basketball players, and 4% of the athletes play both football and basketball. An athlete is chosen at random from the high school: what is the probability that the athlete is either a football player or a basketball player? Probability =
Answers
Answer:
40% (probability that an athlete is a football player OR a basketball player, but not both) I think this is what its asking, but the wording isn't super clear.
44% (probability an athlete is a football player, basketball player, or both)
Step-by-step explanation:
probability of only football player (21%-4%) plus probability of only basketball player (27-4%)
=17%+23%
=40%
|b] + b3; b = -2
Evaluate the expression for the given value of the variable.
Answers
Answer:
b + b3
-2 + (-2×3)
-2 + (-6)
-2 - 6
= -8
Which one of these are the right answers. Help ASAP.
Answers
-1.5(20) + 81
-30 + 81.2
51.2
Hope this helped :)
Note: enter your answer and show all the steps that you use to solve this promblem in the sentence below.
At the halftime show, a marching band in formation. the lead drummer started a point with coordinates (-2,-5) and move 3 steps up and 1 step right.
A. Write a rule to describe it the translation.
B. What were the coordinates of the drummer's final position?
Answers
Answer:
a) The answer is: (x + a, y + b)
b) The answer is: (-1, -2)
The initial coordinates are:
(x, y) = (-2, -5)
Let's find a and b.
a is a distance in x direction: a = 1
b is a distance in y direction: b = 3
The final position is:
(x + a, y + b) = (-2 + 1, -5 + 3) = (-1, -2)
Step-by-step explanation:
Write the following number in standard form. One hundred four billion, twenty- seven thousand, five hundred seventy-one
Answers
Answer:
104,000,027,571
Step-by-step explanation:
billions, millions, thousands, hundreds
New shoes are on SALE. You find a pair you like for $85 dollars. But you only have $45 with you. So, you pay $40 and
charge the balance. At 8% interest, what will the balance owed be in six months? (Assume no payments made and simple interest.)
0 0 0 0
a) $24.25
b) $35.50
c) $46.80
d) $50.00
Answers
Answer:
C) $46.80
Explanation:
The price of new shoes = $85
The amount paid for the shoes = $ 40
The balance amount for the shoes = $85 - $40 = $ 45
The rate of interest = 8%
The time period = 6 months = 0.5 years
Simple interest:
Simple interest = = $1.8
So, Amount = Principal + Interest
or, Amount = $45 + $1.8 = $ 46.8
The balance amount owned in six months is $46.8
Answer:
$46.8
Step-by-step explanation:
i took the test
What is the main advantage of a credit union compared to a payday or title
lender?
A. Credit unions often require collateral, unlike payday and title
lenders.
B. Credit unions usually require loans to be paid back in installments,
unlike payday and title lenders.
C. Credit unions usually offer lower interest rates than payday and
title lenders.
D. Credit unions offer loans to nonmembers, unlike payday and title
lenders.
Answers
It should be noted that main advantage of a credit union compared to a payday or title is that Credit unions usually offer lower interest rates than payday and title lenders.
What is credit union?Credit unions serves as financial institutions, like banks, and are nonprofit entities that aim to serve their members.
Therefore, Credit unions usually offer lower interest rates than payday and title lenders.
Learn more about credit union at;
https://brainly.com/question/2279124
Students at a local school can join one club. The chart below shows how many students are in each club. What percentage of the total number of students are in the outdoor club? (3 points - 2 pts for each correct answer, 1 pts total for showing work) Number of Students Percent of Students Club Photography Coding 32 16% 64 32% Outdoor 40 Gaming 64 Show your work below: =
Answers
Answer:
20%
Step-by-step explanation:
If you already know that 64 students equals 32% you can fill the gaming club in for 32%. Since 100% is the goal you can add 32+32+16 to get 80 and subtract that from 100 to get the remaining percent.
Which expression is equivalent to V-80 ?
0 -4.75
O-4V51
O 451
O 4.5
Answers
[tex]i = \sqrt{-1}\\\\\\\sqrt{-80} = \sqrt{-1*16*5}\\\\\\\sqrt{-80} = \sqrt{-1}*\sqrt{16}*\sqrt{5}\\\\\\\sqrt{-80} = i*4*\sqrt{5}\\\\\\\sqrt{-80} = 4i\sqrt{5}\\\\\\[/tex]
what kind of polynomial is -2
Answers
Hi! I hope you're enjoying your day!
Here's how we classify polynomials:
Number of termsExponent (degree)More Information:
A polynomial with 1 term is called a monomial (for example, 6d)
A polynomial with 2 terms is called a binomial (for example, 6d+ 2a)
A polynomial with 3 terms is called a trinomial (for example, 6d+2a-4s)
A polynomial with 4 or more terms is called a polynomial
(for example. 6d+2a-4s+3e-t+9k-12a)
Degree: first, second, third.. depends on the exponent.
Hence, -2 is
[tex]\boxed{\boxed{\bold{first-degree\;monomial}}}[/tex]
Hope everything is clear.
Let me know if you have any other questions; if you do, feel free to use the comment section.
#LearningIsFun
If f(x)=8x^3-6x^2+x-3 and g(x)=0, find (f o g)(x) and (g o f)(x)
Answers
Answer:
(f o g)(x) = -3
(g o f)(x) = 0
Step-by-step explanation:
See attached image
FIRST PERSON TO CORRECTLY ANSWER GETS BRAINLIEST AND A THANK U SO HURRY
Answers
Answer:
Statement:
EOB; AOB180°90°2x°30°Reason:
GivenGivenGivenStep-by-step explanation:
x + 2x + 90 = 180
3x + 90 = 180
3x = 90
x = 30°
Answer:
vefgdv
Step-by-step explanation:
fsssssssssssssssssssssss
Choose the equation below that represents the line that passes through the point (-2, -1) and has a slope of 5. (5 points)
O. y- 1 = 5(x - 2)
O. y + 1 = 5(x + 2)
O. y + 2 = 5(x + 1)
O. y-2-5(x - 1)
Answers
Step-by-step explanation:
That's the solution;
Final answer; y + 1 = 5 ( x + 2 )
i-Ready
Write and Evaluate Algebraic Expressions -- Instruction – Level
1) The school is planning a field trip to the science center. Tickets are originally $28, but school
groups receive an $8 discount on each ticket that is purchased. The expression t(28 – 8)
represents the total cost for t tickets.
2) What does the quantity 28 - 8 represent?
Order of Operations
) the discounted price of each ticket
Evaluate inside parentheses.
Multiply or divide.
2
• Mrs. Price purchases 24 tickets for the students
in her class. Evaluate the expression for t = 24.
Add or subtract.
3
t(28 - 8) = 24(28 – 8)
= 24 (13
7
8
9
X
4
5
6
Answers
Hope this helps!!
The cost of 24 tickets for the students is $480.
The given expression is t(28-8) represents the total cost for t tickets.
Mrs. Price purchases 24 tickets for the students in her class. Evaluate the expression for t=24.
Substitute t=24 in the given expression t(28-8), we get
24(28-8)
= 24×20
= $480
Therefore, the cost of 24 tickets for the students is $480.
To learn more about an expression visit;
https://brainly.com/question/28170201.
#SPJ6
Equivalent Expression for 8b +8 - 4b
Answers
Answer:
4b +8
Step-by-step explanation:
8b +8 - 4b
Combine like terms
8b -4b +8
4b +8
4+ x/7 =2
A.-14
B.10
C.12
D.42
Answers
Answer:
The answer is A
Step-by-step explanation:
Answer:
its 14
Step-by-step explanation:
1.Subtract 4 from both sides of the equation
2.Simplify
3.Multiply all terms by the same value to eliminate fraction denominators
Simplify
4.Solution
Tanya is given the graphs of the following functions. The functions Latex: f(x) f ( x ) and Latex: g(x) g ( x ) are linear, and the function Latex: s(x) s ( x ) is quadratic. f ( x ) = 3 x − 8 g ( x ) = − 2 x + 5 s ( x ) = 4 x 2 − 9 x + 2 Tanya is then asked to find the graph of Latex: (f\cdot g)(x) ( f ⋅ g ) ( x ) and the graph of Latex: (g\cdot s)(x)\textsf{.} For each combined function, she is given four options to choose from. What clues will help Tanya identify the correct graph of Latex: (f\cdot g)(x)\textsf{?} What clues will help Tanya identify the correct graph of Latex: (g\cdot s)(x)\textsf{?}
Answers
The functions (f.g)(x) and (g.s)(x) are illustrations of composite function
The values of the composite functions are:
(fg)(x) = -6x^2 + 31x - 40 and (gs)(x) = -8x^3 + 38x^2 -49x+ 10
How to determine the equation of the composite functionThe equation of the functions are given as:
f(x) = 3x - 8
g(x) = -2x + 5
s(x) = 4x^2 - 9x + 2
.
The composite functions are calculated using:
(fg)(x) = f(x) * g(x)
So, we have:
(f g)(x) = (3x - 8) * (-2x + 5)
Evaluate the product
(fg)(x) = -6x^2 + 15x + 16x - 40
Evaluate the like terms
(fg)(x) = -6x^2 + 31x - 40
Also, we have:
(gs)(x) = g(x) * s(x)
So, we have:
(gs)(x) = (-2x + 5) * (4x^2 - 9x + 2)
Expand
(gs)(x) = -8x^3 + 18x^2 -4x + 20x^2 - 45x + 10
Collect like terms
(gs)(x) = -8x^3 + 18x^2 + 20x^2-4x - 45x + 10
Evaluate the like terms
(gs)(x) = -8x^3 + 38x^2 -49x+ 10
Hence, the values of the composite functions are:
(fg)(x) = -6x^2 + 31x - 40 and (gs)(x) = -8x^3 + 38x^2 -49x+ 10
Read more about composite functions at:
https://brainly.com/question/10687170
I need to buy enough white boards for 172 students and there are 25 in a pack when the pack arrives 12 whiteboards are damaged. How many whiteboards are undamaged?
Answers
Answer:
There are 163 whiteboards undamaged.
Step-by-step explanation:
So first we know that 12 are damaged and there are 172 students. So first we need to find out how many whiteboards did you buy without knowing there will be 12 damaged. The answer is 7 because there are 25 per pack. And 7 * 25 = 175. You can't buy less because you rather buy extra rather then not enough. Now knowing that, what is 175 - 12 because 12 was damaged.
175 - 12 = 163.
There are 163 whiteboards undamaged.
163 white boards are undamaged
Step-by-step explanation:
⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
Given;
172 Students
25 in a pack
12 whiteboards are damaged
To Find;
How many whiteboards are undamaged?
Solution;
we need 172 whiteboard but one pack consist of 25 whiteboards
⇒ 172/25 = 6.88
≈ 7 pack
Total whiteboard we buy
⇒ 7 × 25 = 175
Out of which 12 whiteboard are damaged
↓ Undamaged whiteboard ↓
→ 175 - 12 = 163 ←
thus, 163 whiteboards are undamaged
⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
~[RevyBreeze]~