find the domain and range of f(x)= -2x²+3
Answers
Answer is in pictures and work as well
Answer:
you need to know what domain and range mean... so remember domain is the input.... range is the output.. :)
Step-by-step explanation:
the input .. "x" in this case.. can be any number .. so the domain is all real numbers.
the output.. or range.. is limited.. b/c the square on the 'x" will always make that number positive.. and then it's multiplied by the negative 2.... so that term will always be negative. : | hmmmm so when is that squred term the smallest it can be? hmmm when it's zero... soooo this function will .. at it's greatest point be 3 and go down from there...
the range is from -∞ to 3
see? :)
Related Questions
a) BCD is a straight line.
Triangle ABC is equilateral.
CE = DE
E
Not drawn
accurately
А
320
B
С
Work out the size of angle x.
(4)
Answers
Answer:
x = 46°
Step-by-step explanation:
Since Δ ABC is equilateral then interior angles = 60°
Since CE = DE then Δ CDE is isosceles and the base angles are congruent, so
∠ ECD = [tex]\frac{180-32}{2}[/tex] = [tex]\frac{148}{2}[/tex] = 74°
BCD is a straight line, then the 3 angles on it sum to 180°, that is
60° + 74° + x = 180°
134° + x = 180° ( subtract 134° from both sides )
x = 46°
How many toothpicks make a triangle? Two triangles? Write
an expression that represents the number of toothpicks
needed to make x triangles that appear side-by-side in a
single row, as shown. Explain your reasoning,
Answers
Answer:
3 toothpicks make a triangle x =3
Step-by-step explanation:
what is 10 to the 100th power
Answers
Answer:
EZ!!! 1e+100
Step-by-step explanation:
Help Please 5 Stars and brainliest
The results of a study exhibit response bias. Select the statement that best describes the bias in the study. *
OThere were not enough subjects who chose to respond to a survey that was sent as part of the study.
O The interviewer for the study was the boss of the subjects.
O The interviewer for the study did not record the responses of the subjects accurately.
O There was a significant amount of people who declined to participate in the study.
Answers
Answer:
the last one
Answer:
the answer is c
Step-by-step explanation:
Help please I don’t know it
Answers
Answer:
Step-by-step explanation:
sinC = 12/13
cosA = 12/13
6(1 - 6x) < 38 - 4x
What is the answer to this equation.
Answers
Answer:
x>-1
Step-by-step explanation:
Answer:
x > -1
Step-by-step explanation:
Paragraph One
He drives a racecar 80 miles per hour. He motivates audiences of hundreds. He's earned awards for his performance on and off the racetrack, and he's traveled the country to compete. Did we mention that he's 13 years old? One look at his accomplishments and it is easy to see that Noah "Little Gator" Cornman is on the fast track to success. "Little" might be a part of his nickname, but it does not describe his determination to succeed and his heart to make a difference for kids like him.
In paragraph 1, which sentence implies that the author is impressed with the teen's accomplishments?
He drives a racecar 80 miles per hour.
He motivates audiences of hundreds.
Did we mention that he's 13 years old?
He's traveled the country to compete.
Answers
Answer:
Did we mention that he's 13 years old?
Step-by-step explanation:
because he inspire alot of people by driving a racecar 80 mph that is fast for a kid at his age.
Answer:
Did we mention that he's 13 years old?
Step-by-step explanation:
Did this in middle school 1 year ago it right
Steph has 7 gallons of water josh has 26 quarts of water how many more cups of water does Steph have than josh
Answers
Answer:
8 CUPS
Step-by-step explanation:
We have to convert gallons and quarts to cups and subtract the values
1 gallon = 16 cups
7 gallons = 7 x 16 = 112 cups
1 quart = 4 cups
26 quarts = 26 x 4 = 104 cups
112 - 104 = 8 cups
A rectangular playground has a width of 54 feet and a length of 81 feet. Martina makes a scale model of the playground using a scale of 1 in:3 ft.
What are the dimensions of Martina’s scale model?
Answers
Answer:
72 and 108
Step-by-step explanation:
540/30= 18 *4 = 72
and
810/30= 27*4=108
What is the coefficient in the variable term 7x?
Answers
Answer:
7
Step-by-step explanation:
the coefficient is the number that is multiplied by x which in the case of 7x is 7
Hope that helps :)
Can someone pls help me on this
Answers
CF is 7
Step-by-step explanation:
GE is 10 and they have to be equal so 10-3 is 7
Find the sale price of a $45 item after a 20% discount.
Answers
Answer:
36$
Step-by-step explanation:
Can someone pls help me
Answers
Answer:
10
Step-by-step explanation:
Answer: its an acute angle so its 90
Step-by-step explanation:
6. How many solutions does the system 2y = 10x - 14 and 5x - y = 7 have? B two C none A one D infinitely many
Answers
Answer:
D infintely many
Step-by-step explanation:
These equations have the same slope and same y-intercept making them the same exact line/equation
Find the value of x. Round to the nearest degree as needed.
Answers
9514 1404 393
Answer:
x° = 59°
Step-by-step explanation:
The mnemonic SOH CAH TOA is intended to remind you of the trig relations. The one applicable here is ...
Tan = Opposite/Adjacent
tan(x°) = 5/3
x° = arctan(5/3) ≈ 59.04°
The value of x is about 59.
what is the slope of this line, simplify if possible!
Answers
Answer:
The slope is 0
Step-by-step explanation:
the line is straight, so the slope is 0. I hope this helps
Bernie bought a pair of shoes at the store when they were having a 30% off sale. If the
regular price of the pair of shoes was $42, how much did Bernie pay?
A) $12.60
B) $29.40
C) $24.00
D) $15.30
Answers
(q – 5) 7 simplified
Answers
Answer:
7q-35
Step-by-step explanation:
1. Find the slope and the y-intercept
of the graph of the linear equation.
y = -7x + 2
1
A) slope: -1/7; y-intercept: 2
B) slope: 1/2; y-intercept: -7
C) slope: -7; y-intercept: 2
D) slope: 2; y-intercept: -7
Answers
Answer:
the answer is C..................
What is the initial value of e=3h+200.
Answers
Answer:h=e-200/3
Step-by-step explanation:
Question 5
3 pts
(6.03)
How many variable terms are in the expression 3x3y + 5x2 + y + 9? (Input a
numeric value only.) (3 points)
Question 6
4 nts
Answers
Answer:
2
Step-by-step explanation:
hey guy i need help on this
Answers
Answer:
14
Step-by-step explanation:
Answer:
14
Step-by-step:
[tex](12 - 9)^{2} + \frac{15}{3} \\ (3) ^{2} + \frac{15}{3} \\ 9 + \frac{15}{3} \\ 9 + 5 \\ = 14[/tex]
A. Write the ratio and express in simplest or lowest terms.
1. 8 hours to 10 hours
2. 40 minutes to 1 hour
3. 25 centavos to a peso
4. 2 dozens to 18 things
5. 64 km to 2 hours
Answers
Step-by-step explanation:
a 8:10
= 8/10
= 4/5
b. 1 hr = 60 min
= 40: 60
= 40/60
= 2/3
d 1 dozen = 12 things
2 dozen = 24 things
= 24: 18
= 12/18
= 2/3
What is the equation of the line that passes through the point (4, 12) and has a y-intercept of -2?
A y = 12 x - 2
B. y = {x-2
C y = 2x - 2
D. y = 6x - 2
Answers
Answer:
The answer is D.
Step-by-step explanation:
:DDDDDDDDD
how many rectangles with an area of 10 square feet can fit within a large rectangle with dimensions 25 feet by 40 feet?
Answers
Answer:
100 small rectangles
Step-by-step explanation:
Number of small rectangles = Area of large rectangle ÷ area of small rectangle
[tex]= \frac{25*40}{10}\\\\= 25*4\\= 100[/tex]
108 divided by 2 1/2
Answers
Answer:
43.2
Step-by-step explanation:
first turn 2 1/2 into an improper fraction
(2 × 2) + 1 = 5
5/2
then turn 5/2 into a fraction
5 ÷ 2 = 2.5
now divide!
108 ÷ 2.5 = 43.2
Number equivalent to 108/2 1/2 is 43.2 .
Given,
108 divided 2 1/2
Using division property,
The rules for division are:
(1) positive × or ÷ positive = positive
(2) positive × or ÷ negative = negative
(3) negative × or ÷ negative = positive
Rule for long division method,
Divide the tens column dividend by the divisor.
Multiply the divisor by the quotient in the tens place column.
Subtract the product from the divisor.
Bring down the dividend in the ones column and repeat.
Therefore,
divide, multiply, subtract, bring down and repeat or find the remainder.
Here the required value is of :
108/2 1/2
= 108 / (5/2)
= 43.2
Hence the answer is 43.2
Know more about division,
brainly.com/question/10703980
#SPJ6
please could u help me with this?
Answers
If you want to bowl six games which ally is better show work
Answers
Answer:
Pinz
Step-by-step explanation:
So to set up the equation for Lanez:
y = 3.5 + 4.25x
Next we compare the prices for both overall by plugging 6 games in as x:
Lanez:
y = 3.5 + 4.25(6)
y = 3.5 + 25.5
y = 29
Pinz:
y = 3.75 + 4(6)
y = 3.75 + 24
y = 27.75
29>27.75
Lanez is more expensive with it costing $29 for a night as opposed to the $27.75 one would pay to play at Pinz.
Kathryn bought a magazine for $5 and eight erasers. She spent a total of $45. How much did each eraser cost?
Answers
Q2. 1 a) Dave wants to invest $2000 in an account that earns 2.5% interest compounded monthly. If he
leaves the money in the account for 5 years, how much money will he have at the end of those 5 years?
Answers
Question: Dave wants to invest $2000 in an account that earns 2.5% interest compounded monthly. If he leaves the money in the account for 5 years, how much money will he have at the end of those 5 years?
Answer:
Step-by-step explanation: