what's the domain and range of y=-2x^2+5x-7
Answers
Answer:
Domain: All real numbers Range: (-∞, -31/8]
Step-by-step explanation:
Since the parent function for this equasion is y=x^2, you know that the graph wil be parabolic in shape. All parabolic functions have a domain of all real numbers. Now when you rewrite the graph in vertex form, you will see that the top vertex is at y=-31/8, this is going to restrict the range to be (-∞, -31/8]. I have provided a graph using the app PhotoMath.
Related Questions
2n^2 + 3n-1
find the 10th term
Answers
Answer:
229
Step-by-step explanation:
t10= 2×10^2+3×10-1
=2×100+30-1
=200+29
=229
Answer:
229
Step-by-step explanation:
[tex]2n^{2} + 3n -1\\[/tex]
[tex]2 (10^{2} ) + 3(10) -1[/tex]
[tex]200 + 29 = 229[/tex]
can you create a equation for this
Answers
Answer:
it's y = 2x
Step-by-step explanation:
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Cube of a binomial (a - b)
Answers
Answer:
(a - b)³ = a³ - 3a²b + 3ab² - b³Step-by-step explanation:
Cube of a binomial (a - b)
(a - b)³ = a³ - 3a²b + 3ab² - b³A line is parallel to y = 3x + 5 and
intersects the point (-2, 6). What is
the equation of this parallel line?
Start by entering this into point-slope form.
y- [?] = [](x
](x-[]).
Answers
Answer:
Im not like 100% sure but i think you answer is
y-6=3[x-(-2)]
y=6+3x+6
y=3x+12
And i believe that this is parallel to y
Answer:
y = 3x + 12Step-by-step explanation:
Parallel lines have same slope
Given line
y = 3x + 5The line that passes through (-2, 6) and with the slope of 3 is:
y - y₁ = m(x - x₁)y - 6 = 3(x - (-2))y - 6 = 3(x + 2)Convert the equation into slope-intercept form:
y - 6 = 3x + 6y = 3x + 6 + 6y = 3x + 12what is 7.25-6.17=? in subtracting decimals
Answers
Answer:
1.08
Step-by-step explanation:
I need help with this math problem!! i'll give brainilist to the correct answer :)
Answers
Answer:
Blank 1: x
Blank 2: 1.5
Step-by-step explanation:
#thanks for the points!
#Chloe919
#carry on learning
PLZ HELP IM TRASH AT MATH
Answers
Answer:
C should be the answer.
Step-by-step explanation:
Square root of 50 is equal is 7.071.
7.071 is right in between 7 and 8, making it the right answer for C.
Answer:
C??
Step-by-step explanation:
I mean if you put it in the calculator, then you get 7.07 so... lemme know if im wrong :D
can anyone help with this, it’s my worst subject.
Answers
Answer:
Yes
Step-by-step explanation:
They are congruent because they gave the same dimensions.
Bettina bought 8 pairs of socks for $23.20. Nancy bought 10 pairs of socks for $30.00. Nancy says that she paid less per pairs of socks than Bettina. Is Nancy correct
Answers
Answer: yes, Nanay did´t buy more pairs of socks, she had bayed more. I hop that this is helpful.
please help me!!!!!!!!111
Answers
Help with this please!!!! The green box
Answers
Answer: 6
Step-by-step explanation:
The question is looking for the leg length beside the green box. If you count the leg length from vertex to vertex, it is 6 squares in length.
the amusement park charges $20 to get in plus $1.50 per ride which linear equation represents this relationship y=1.5+20x,y=21.5x,y=1.5x+20,y=20x+1.5
Answers
Step-by-step explanation:
1.50 per ride tones X number of rides plus a 20 entrance fee
y= 1.5x + 20
simplify 7x7⁴????????
Answers
Answer:
7power to 5
Step-by-step explanation:
good luck you're welcome
Answer:
16807
Step-by-step explanation:
7 x 7^4 = 7^1+4
= 7^1+4
1+4= 5 - 7^5
7^5 = 16807
Find the area of a semi circle if the diameter is 3m
Answers
Answer:
The radius of the circle=
3/2
1.5
Area of circle= Pi x radius^2
3.14 x 1.5^2
=7.06m^2
Since it's a semi circle
7.06/2
=3.53m^2
Hope it helps
The length of CD is 12 units. C'D' is the image of CD under a dilation with a scale factor of k.
Which of these are true? Choose all that are correct.
Answers
solve each system by substitution
y=-2x + 7
y = 3x - 13
Answers
Answer:
y = -1, x =4
Step-by-step explanation:
3x-`13=-2x+7
x = 4
y=3(4)-13
y = -1
Is Janelle correct? Yes, because the lines are not parallel. Yes, because the lines will intersect. No, because the lines are in the same plane. No, because the lines are perpendicular.
Answers
Answer:
Step-by-step explanation:
No, because the lines are in the same plane.
A new car is purchased for 24600 dollars. The value of the car depreciates at 5.5% per year. To the nearest year, how long will it be until the value of the car is 11300 dollars?
Answers
Answer:
The number of years until the value of the car is 11300 dollars is 9 years.
Step-by-step explanation:
This can be calculated using the following formula:
Value of the Car = Purchase cost - (Annual depreciation expenses * N) ........ (1)
Where;
N = Number of years until the value of the car is 11300 dollars
Purchase cost = $24,600
Annual depreciation rate = 5.5%
Annual depreciation expenses = $24,600 * 5.5% = $1,353
Value of the car = $11,300
Substituting the value into equation (1) and solve for N, we have:
$11,300 = $24,000 - ($1,353 * N)
$1,353 * N = $24,000 - $11,300
$1,353 * N = $12,700
N = $12,700 / $1,353
N = 9.38654841093865
Rounding to the nearest year as required by the question, we have:
N = 9
Therefore, the number of years until the value of the car is 11300 dollars is 9 years.
Step-by-step explanation:
Select the correct answer. .
Which number has a repeating decimal form?
A 15
B 11/25
C 3/20
D 2/6
Answers
Answer:
B
Step-by-step explanation:
I say B because 2 divided by 6 is .333333333 and so on and so forth.
Hope this helped!!
Helpppp!!!!
Work out the size of angle x.
Answers
answer is 118°
hope that helped
360-295 = 65
180-65=115
115+127 = 242
360 - 242 = 118
ANSWER ASAP!!! PLS HELP.
u can only use these for 15, 16 & 17:
acute equilateral ,
obtuse scalene , right scalene , acute isosceles
Answers
Step-by-step explanation:
15 . It is an acute equilateral triangle.
16. It is an obtuse scalene triangle.
17. It is right scalene triangle.
Hope it will help :)
Fill in the blank:
I’m diamond, you know I glow up,
Hey, so let’s go
_______________
Answers
Answer:
cause imm in the stars tonight
Step-by-step explanation:
cause I I I'm in the Stars tonight
Basil was shown this enlargement, and he was asked to find the perimeter of the enlarged shape. His work is shown below.
Answers
The question is incomplete. The complete question is :
Basil was shown this enlargement, and he was asked to find the perimeter of the enlarged shape. His work is shown below.
Where, if any, did Basil first make a mistake in his work?
Solution :
Not -- Basil did not make any mistakes in his work. He found out the perimeter of an enlarged shape.
Perimeter is the total measure of the outer lining or the total outer length of the body or the shape. For different shapes, the perimeters will be different. Basil measure the outer length of the body and found out the perimeter.
Answer:
C
Step-by-step explanation:
e) 6x-(3x+2)=1 how much is the x
Answers
Answer:
1
Step-by-step explanation:
6x - ( 3x + 2) = 1
6x - 3x - 2 = 1
3x = 1 + 2
3x = 3
x = 3 / 3
x = 1
Hope it will help :)
Answer:
x=1
Step-by-step explanation:
Alan has read 10% of a book. He has 81 more pages to finish. How many pages are there in the book?
Answers
Answer:
90
Step-by-step explanation:
100%-10%=90%
90%->81
10%->9
100%->9+81=90
What is the length of the hypotenuse with
the given vertex (-5,0)?
I
Answers
Answer:
5000 square ft
Step-by-step explanation:
Find the Difference.
3x + 5 - (2x + 2)
How do I do this step by step?
Answers
Answer: The correct answer is x+3
Step-by-step explanation: To find the answer you must first remove the parentheses then you combine the like terms and that how you get your answer.
Answer:
x + 3
Step-by-step explanation:
Madeline is going to invest in an account paying an interest rate of 4.4% compounded
annually. How much would Madeline need to invest, to the nearest ten dollars, for
the value of the account to reach $16,600 in 12 years?
Answers
Answer:
$9540
Step-by-step explanation:
A = P(1 + r)^t
16600 = P(1.044)^12
P = 16600/(1.044)^12
P = $9,543.64
Denise rode 3 kilometers on a bike. her friend clark rode 5000 meters on a bike
how much farther in meters did one person ride than the other?
Answers
[tex] \huge \purple{\tt{Answer:}} [/tex]
Denise rode 3 kilometres .
Clark rode 5000 metres which is 5 kilometres .
So , Clark rode 2 kilometres more than Denise .
Answer:
Step-by-step explanation:
1 km = 1000m
3km = 3000m
So difference = 5000 - 3000 = 2000m = 2km
Clark rode 2km more than denis
University students will draw a card from a deck of cards. They win a prize if they draw a card marked with a picture of a Texas longhorn. The probability of drawing a card
2
with a longhom is Plonghorn card
card) –
425 students will play the game. Using what you know about theoretical probability, predict how many students will draw a longhorn card.
2/85
Answers
Answer:
2/85
Step-by-step explanation:
It's easy.