3x^2 - 6 = 2x wat is discriminant of the quadratic equation
Answers
Answer:
The discriminant is 76
Step-by-step explanation:
The equation needs to be in the form
ax^2 +bx +c =0
3x^2 - 6 = 2x
Subtract 2x from each side
3x^2 -2x - 6 = 0
The discriminant is
b^2 - 4ac
a = 3 b = -2 c = -6
(-2)^2 -4(3) (-6)
4 + 72
76
Answer:
76
Step-by-step explanation:
Related Questions
Key Concepts
• The constant of proportionality is the _______ value of the ratio between two proportional quantities.
• To find the constant of proportionality on a graph, find the y-value when the x-value is
________ .
• You can use ______ reasoning to find the constant of proportionality when the x-value of 1 is not labeled on a graph.
• A proportional relationship is sometimes described by words. Setting up a table to find the _______ of proportionality can be useful.
Answers
Answer:
equal, right, answer
Step-by-step explanation:
please please please please help me I need to get 100 on this paper
Answers
Answer:
1. slope = 12
y-intercept = 1/3
2.slope = 1/4
y-intercept= -12
3.slope = 3
y-intercept = 2
Step-by-step explanation:
When you get an equation for a graph, the co-efficient infront of the x (The number by the x) is the slope.
The equation for the y-intercept:
When solving for y-intercept, you replace y in the equation with 0 and make x the subject.
Example:
y = 12x - 4
0=12x - 4
-12x = -4
divide both sides by negative 12 since we want only positive x
\(\frac{-12x}{-12} =\frac{-4}{-12}\)
x = \(\frac{1}{3}\)
Therefore, the y-intercept = 1/3
Can anyone plss help?
Answers
Answer:
x= 5/2 or 2.5
Step-by-step explanation:
------------
Answer:
x=2.5
Step-by-step explanation:
2.5×4=10
10+10+30+30=80
Choose 4 values for x to complete the function f(x)=x-7.
Answers
domain is 4 and i think -7 is the range
Calculate (6.25 x 10^9) − (3.44 x 10^8). NEED HELP ASAP WILL GIVE BRAINLIST Step by Step needed
5.906 x 10^9
5.906 x 10^8
2.81 x 10^9
2.81 x 10^1
Answers
Answer:
5.906 x 10^9
Step-by-step explanation:
(6.25 x 10^9) − (3.44 x 10^8).
step 1: make the exponents have common value
Move decimal point of 3.44 to the left once and add 1 to it's exponents.
that is 3.44 x10^8 becomes 0.344 x 10^9
= 6.25 x 10^9 - 3.44 x 10^8
= 6.25 x 10^9 - 0.344 x 10^9
step 2: bring out the common factor 10^9 since the exponents are the same.
Also, subtract the decimal numbers.
= (6.25 -0.344) 10^9
6.25 - 0.344 = 5.906
Therefore, the result is 5.906 x 10^9.
I know this question is not about math or science but my friends are saying the Leonardo DiCaprio when he was young is hotter than Zac Efron now and when he was young. I need y’alls opinions.
Who is hotter, young Leonardo DiCaprio or 35 year old Zac Efron? My pick is Zac Efron but I want some opinions.
Answers
Answer:
it's Zac Efron for sure, Leonardo DiCaprio is just not the same...
(explanation please so i can understand)
Triangle JKL has vertices at J(−1, −5), K(−2, −2), and L(2, −4). Determine the translation direction and the number of units of the image of triangle JKL if vertex J′ is at (−1, −8).
3 units down
3 units up
7 units to the right
7 units to the left
Answers
Answer:
3 units down
Step-by-step explanation:
J(-1, -5) → J'(-1, -8)
The x coordinate of the vertex J is -1 and does not change in J' (it is still -1)
The y coordinate of J is -5, and for J' is -8. This means the translation direction of 3 units down. (-8- -5 = -3)
if m is greater than 1 which statement is true
Answers
Answer:
A
Step-by-step explanation:
1/ sq root 5 is abt .44. 1/5 is .2
A halloween costume cost $24.97. How much dose it cost after a coupon of 95% off is added to it?
Answers
Answer:
costs $1.25
Step-by-step explanation:
Explanation:
Discount = original price x discount % / 100
Discount = 24.97 x 95/100
Discount = 24.97 x 0.95
So you save 23.72
24.97 - 23.7215
= $1.25
IF ANSWERED FAST AND CORRECT WILL YOU BRAINLIEST !!
What is the area of the label on a can of corn with a radius of 3 inches and a height of 6 inches? Use 3.14 as pi and round to the nearest hundreth.
Possible answer choices- 169.56 square inches
113.04 square inches
339.12 square inches
56.52 square inches
Answers
Answer:
169.56 in²
Step-by-step explanation:
A=2πrh+2πr²
A=2π(3)(6)+2π(3)²
113.04+56.52
169.56 in².
Answer:
113.04
Step-by-step explanation:
Givens
r = 3 inches
h = 6 inches
Formula
Area = 2*pi*r*h
Solution
Area = 2 * 3.14 *3 * 6
Area = 113.04
The given value for r looks more like a diameter.
PLEASE HURRY!!!!! Which statement describes the situation shown in the graph?
Answers
Answer:
Sales increase with a decrease in the price.
Step-by-step explanation:
The rule for a shape pattern is "square, triangle, circle, oval." What is the fiftieth shape?
Tell me if you need anything :)
Answers
Answer:
rectangle?
Step-by-step explanation:
Im not really sure but you can tell they have a pattern, for instance a square and triangle have sides while a circle and oval do not.
At the 50th place, triangle shape pattern is used.
What is a triangle?A triangle is a geometric figure with three edges, three angles and three vertices. It is a basic figure in geometry.
The sum of the angles of a triangle is always 180°
The square, triangle, circle, and oval pattern rules are listed.
The formula for the number of shapes (n) is:
In order to calculate the 50th shape, the following absolute operator is used,
Divide 50 by 4 and record the result,
4 divided by 50 leaves, 2 as the remaining.
This implies that, the shape at the 50th position is the same shape at the 2nd position.
In the 2nd position, the shape is circle, triangle.
Hence, the shape is triangle.
To know more about Triangle on:
https://brainly.com/question/2773823
#SPJ2
The committee members will spend money to rent the following equipment:
• 2 fog machines
• 1 sound equipment set-up
• 1 disco ball
They already spent $800 on lighting and $444 on costumes.
Each audience member will receive a gift that costs $1.25 each.
What is the total amount of money, in dollars, the committee will spend on the talent show?
Answers
Step-by-step explanation:
2 fog machines = $80
1 sound equipment = $165
1 disco ball = $45
80+165+45+855+462= $1,607
please help me i will give brainliest to first person to anwser.
Answers
First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
Answer:
The first option, V ≈ 1607.7 in²
Step-by-step explanation:
Find the volume of the given cylinder.
\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)
Given:
r = 8 in
h = 8 in
π = 3.14
Find:
V = ?? in³
\(\hrulefill\)
Now solving,
Substitute the given values into the formula:
=> V = (3.14)(8)²(8)
Using a calculator to simplify:
=> V = 1607.68 in²
Rounded to the nearest tenth:
∴ V ≈ 1607.7 in²
Thus, the first option is correct.
HELP ASAP IM BEING TIMED
Answers
Answer:
Are you still being timed?
Step-by-step explanation:
It was 3hrs ago
ASAP!!!!!!! The graph represents the money collected at the movie theater on Saturday. Find the domain when the maximum number of people allowed in the movie theater is 30 people. graph of y equals 2 times x plus 40 with x axis labeled Number of People and y axis labeled Amount of Money 0 ≤ y ≤ 30 40 ≤ x ≤ 100 0 ≤ x ≤ 30 40 ≤ y ≤ 100
Answers
Answer:
40 ≤ y ≤ 100
Step-by-step explanation:
Answer: Domain must include the x value. With a maximum of 30 people allowed in the theater, the domain is between 0 and 30, or 0<x>30
Step-by-step explanation:
Please solve and show your work! <3 have a great day!
12x-18y*-90
Answers
Simplifying
12x + -18 = 90
Reorder the terms:
-18 + 12x = 90
Solving
-18 + 12x = 90
Solving for variable 'x'.
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Move all terms containing x to the left, all other terms to the right.
Add '18' to each side of the equation.
-18 + 18 + 12x = 90 + 18
Combine like terms:
-18 + 18 = 0
0 + 12x = 90 + 18
12x = 90 + 18
Combine like terms:
90 + 18 = 108
12x = 108
Divide each side by '12'.
x = 9
Hence,
x = 9
Hope this helps! <3
Can somebody please help me I need to turn this in. In 10 mins
Answers
Answer:
Step-by-step explanation:
115 + 25 =140 to be honest i have no clue
if i was 39 how old was i 28 years ago?
Answers
Answer:
It depends on how old are you today which depends on how long ago was that "was 39"
Step-by-step explanation:
Answer:
69
Step-by-step explanation:
You will be 69 years old
(1/6) to the 2nd power
Answers
Answer:
0.0277777778
Step-by-step explanation:
\(\frac{1}{6} ^{2}\)
\(\frac{1}{6}\) × \(\frac{1}{6}\) = 0.0277777778
The answer is 0.02777777777
The sevens just keep going
Just put a line right beside the last 7 so show it's infinte
please help me its a big grade
Answers
Answer:
280 cubic inches
Step-by-step explanation:
4x5=20
20x14=280
=4•5•14
= 280
volume of the gift box= 280 cubic inches
Evaluate (4a2 + b) ÷ c , when a= −2, b= −1, and c= 5.
Answers
Answer:
3
Step-by-step explanation:
substitute the values to find the answer
Explanation: Plato
help please and tyyy
Answers
Answer:
multiply each number together
Write the following as an algebraic expression: 7 less than 3 times x.
Answers
Answer:
3-7x
Step-by-step explanation:
Answer:
7 < 3x
Step-by-step explanation:
yuh
Keira said that if 6 tickets are sold, there should be 2 tickets left. Is Keira correct?
Answers
According to Keira, if 6 tickets are sold, there should be 2 tickets left. However, we don't have any information about the initial number of tickets available.
If the total number of tickets initially was 8, and 6 tickets were sold, then there would indeed be 2 tickets left, supporting Keira's statement.
However, if the total number of tickets initially was less than 8, or if the statement doesn't specify the initial number of tickets, we cannot determine if Keira's statement is correct.
Therefore, without additional information, we cannot determine the accuracy of Keira's statement.
Garth sells baseball caps outside the stadium. The graph shows the number of caps sold and the income from the sales. It represents a linear function.
Which statement best describes Garth's income from selling these caps?
A. He gets $5.00 per cap.
B. He gets $25.00 per cap.
C. He gets $34.00 per cap.
D. He gets $12.00 per cap.
Answers
100/8 = 12.50
Help me please i don't understand this...
Answers
Answer:
Both of them are correct.
The table and the graph given is correct.
Answer:
there both correct
Step-by-step explanation:
Given: 9y^0
A. Simplify the expression for y=3.
B. Construct Arguments Will the value of the given expression vary depending on y? Explain
Answers
Answer:
A. 9 x 3^0 = 9 x 1 = 9
B. the value doesnt vary depending on y as any number whose power is zero is always 1.
Because that would give the simplify expression
How do “near facts” help you solve division problems?
Are there any types of problems or situations when “near facts” won’t be helpful? Why?
Answers
Answer:
Offering food is another good way to get an indication if a cat may be lost – if. In some areas, particularly in East London, there is a huge stray and feral cat population. KIDNEY / RENAL PROBLEMS: Cats with kidney disease drink more and. they may require a litter tray each and if you have one cat that won't use a tray.
please mark as brainliest
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Answers
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation: