Answer:
7/8 is less than 1, sure it is close to one but not 1.
Which graph represents a quadratic function with a negative discriminant?
Choice 1
Choice 2
Choice 3
Choice 4
Answer:
Choice 4
Step-by-step explanation:
#4 because the graph does not intersect the x-axis
The graph that represents a quadratic function with a negative discriminant is graph 4.
What is a Discriminant?The part in the formula of a quadratic equation that helps us to know the nature of the roots of a quadratic equation is known as a discriminant.
D = b2 - 4ac,
If the value of the discriminant is greater than zero then the roots of the equation are real and distinct,If the value of the discriminant is equal to zero then the roots of the equation are real and same, andIf the value of the discriminant is less than zero then the roots of the equation are imaginary.Since for the value of the discriminant to be negative, the roots of the quadratic equation should be imaginary. Also, imaginary never intersects the x-axis of the graph.
Now, in the group of the graphs the only graph that does not intersect the x-axis of the graph or have imaginary roots is graph 4.
Hence, the correct option is graph4 (Bottom Right).
Learn more about the Discriminant here:
https://brainly.com/question/15884086
#SPJ2
Clara bought a shirt for %18.45 and a skirt for $22.68. She gave the cashier $50 for the purchase. How much change will clara receive?
Answer:
$8.87
Step-by-step explanation:
Add the cost of the shirt and the skirt, 18.45 + 22.68 = 41.13
50-41.13 = $8.87
PLS HELP ME PLS 20 POINTS FOR HELPING
What is the answer to this?
Answer:
DG=9
Step-by-step explanation:
2x-4=x+7
x-4=7
x=11
x-2=11-2=9
Pleaseeee help ASAP!!!!!!
Question:
The taxi company charged a pick-up fee of $4.30 plus $1.25 per mile. The total fare was $35.55, not including the tip. How many miles was the taxi ride?
Answer:
total miles 25
Prove:
35.55-4.30=31.25
31.25/1.25= 25
OR Explained
sub 4.30 35.55 - 4.30 = 31.25
Divide 1.25 31.25/1.25 = 25
Final answer is 25
After dividing what you subtracted, you will successfully get your answer.
Answer:
25 miles is the answer
Step-by-step explanation:
which question is a statical question
A.What is the best genre of books?
B.What is the longest book you have read?
C.What genre was the last book you read?
Answer:
B is a statistical question
Step-by-step explanation:
A and C ask for qualitative data or categorical data
B asks for quantitative data or numerical data
We obviously use numerical data for statistical work, so B is the answer
if f(x) = 2x +1 and g(x) = 5x-6 then what are f(-1) and g(3)
Answer: -1
Step-by-step explanation: ANSWER : -1
f(x)=3x−1=y
⇒x=3y+1
∴f−1(y)=3y+1
⇒f−1(x)=3x+1
g(x)=5x+6=z
⇒x=5z−6
g−1(z)=5z−6
⇒g−1(x)=5x−6
g−1(f−1(x))=g−1(3x+1)
=53x+1−6
=15x−17
∴g−1(f−1(2))=
I need to print x photos for my scrapbook I called two different stores to ask about the cost of printing photos The first store charges a fee of $3.79 to use the photo machine and then an additional $0.25 per photo. The second store charenly a $0.99 fee to use the photo machine, but the additional cost per photo is $0.35 After comparing the two stores, I realize my overall cost will be the same at each store. What is the value of x, the number of photos I need to print?
Answer:
x=28
Step-by-step explanation:
3.79+0.25x=0.99+0.35
-0.35x -0.35x
3.79+-0.10x=0.99
-3.79 -3.79
-0.10x=-2.8
-0.10x/-2.8
x=28
What is the first step to solve this equation:
11 - 3x = 44
Question 3 options:
Add 3 to both sides
Add 11 to both sides
Subtract 11 from both sides
Divide 3 on both sides.
I need the answer ASAP does anyone know it
1. Determine the following:
1.1. A car does a distance of 340 km for a consistent speed of 85 km/h. Hoy
long will it take the car to go the entire distance.
Answer:
v=d/t
v=340km/85km/h
v=4 km
I hope this helps you
Pleaseeeew HELPPPP no one ever answers my questions on here
Answer:
Circumfrence: 40.21
Radius: 6.4
Step-by-step explanation:
For radius, you only have to divide the diameter (in this case 12.8) by 2 which gives us 6.4
For Circumference, plug in the radius in the formula C=2π(6.4), and that gives us 40.21
T Frank leans a 10 foot ladder against the side of his house, but because of a
rose bush next to the house, the bottom of the ladder is 3 feet away from the
wall. How high will the top of his 10 foot ladder really reach? feet
Answer:
9.5 feet
Step-by-step explanation:
We use Pythagorean thm:
a² + b² = c²
Given:
b = 3
c = 10
Work:
a² + b² = c²
a² + 3² = 10²
a² + 9 = 100
a² = 91
[tex]\sqrt{a^2} =\sqrt{91}[/tex]
a = 9.5
Please help I asked this question earlier and nobody answered! :(
Answer:
B
Step-by-step explanation:
One way to tell is to put both equations into slope-intercept form. That form is usually written [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept.
Solve the first equation for y.
[tex]6x+2y=5 \\ 2y=-6x+5 \\ y=-3x+5/2[/tex]
The slope of this line is -3, and its y-intercept is 5/2.
Solve the second equation for y.
[tex]y+3x=2\\y=-3x+2[/tex]
The slope of this line is -3 and its y-intercept is 2.
The lines are parallel because they have the same slope and different y-intercepts. There is no solution to the system.
Solve the equation 5x^2-6x-7=0
Answer:
0.37
Step-by-step explanation:
5x^2-6x-7=0
25x-6x-7=0
19x-7=0
19x=7
0.37
Answer:
x = (3-2√11)/5 ; x= (3+2√11)/5
Step-by-step explanation:
Δ/4 = (b/2)^2 - ac where b is the term that multiplies x, a is the therm that multiplies x^2 and c is the therm without x
Δ/4 = (-3)^2 - (-7*5) = 9 + 35 = 44 = 2^2 *11
x1 = (3 - √2^2 *11)/5 = (3-2√11)/5
x2 = (3+ √2^2 *11)/5 = (3+2√11)/5
HURRY this needs to be done fast!!!
3. Ethan bought a used car. The value, v(t) the car t years after his purchase is given by the equation v(t) = 4, 500 * (0.8334) ^ t . What was the value of the car when Ethan bought it?
Answer: 4500
Step-by-step explanation: when t=0, then 0.8334^t= 1
And 4500 is original value of the car.
if a quadrilateral has angles measure 2y,3y ,y+5and 2y-1,what is the value of y
a.360
b.45.5
c.90.5
d.44.5
What fraction of the students are wearing either a white or blue shirt?
PLX HELP THIS TEST IS 20 PERCENT OF MY FINALE GRADEEEEE
On Friday,
3/10
of the students at school were wearing white shirts and
5/12
of the students were wearing blue shirts.
select the fraction of students wearing either a white shirt or a blue shirt.
Answer:
43/60
3/10 x 12 = 36/120
5/12 x 10 = 50/120
50/120 + 36/120 = 86/120
Simplified we get 43/60
If (-3)^-5=1/x, what is the value of x?
options are in the photo
Answer:
X= -243
Used Math.way
help me it's too urgent
Answer:
id k if it's right but i hope this helps :)
Step-by-step explanation:
Pleaseee helpppp I really need it now please
Answer:
c = 60
Step-by-step explanation:
A triangle = 180 degrees
180-(15+105)=c
c=60
Write -0.5 repeating as a fraction or mixed number
Answer:
Step-by-step explanation:
1/2 as a fraction
how many solutions is there to the system of equations? 2x + 3y = 11 -4x - 6y = -22
Answer:
x = 4, y = -3
Step-by-step explanation:
{2x - y = 11
{x + 3y = -5
You can use the substitution method by solving for x in the second equation:
x + 3y = -5
Subtract 3y from both sides:
x = -3y - 5
Now, substitute this value for x into the first equation:
2x - y = 11
2(-3y - 5) - y = 11
Distribute:
-6y - 10 - y = 11
Add 10 to both sides:
-6y - y = 21
Combine like terms:
-7y = 21
Divide both sides by -7:
y = -3
Next, substitute this value for x into the second equation:
x + 3y = -5
x + 3(-3) = -5
Multiply:
x - 9 = -5
Add 9 to both sides:
x = 4
Find the value of x
Step-by-step explanation:
Given Angle AOC = 90,
Angle AOB + Angle BOC = 90
[tex]3x + 46 + 14 = 90 \\ 3x + 60 = 90 \\ 3x = 90 - 60 \\ 3x = 30 \\ x = 30 \div 3 \\ = 10[/tex]
Answer:
B) 10
Step-by-step explanation:
It is given that the (m<AOC) is (90) degrees. It is also given that (<AOB) and (<BOC) compose (<AOC). Therefore, the following statement can be made;
(m<AOB) + (m<BOC) = (m<AOC)
Substitute,
(3x + 46) + (14) = (90)
Simplify,
3x + 60 = 90
Inverse operations,
3x + 60 = 90
-60 -60
3x = 30
/3 /3
x = 10
What is the area of this regular polygon?
Answer:
A=25√3 cm^2
Step-by-step explanation:
Since it is a regular triangle, all sides are equal to 10cm. The dotted line is a perpendicular bisector, which means that it seperates the triangle into two perfect halves. So a right triangle is formed. The bottom of the right triangle will be half of 10, and 10/2=5. So to find the missing side, use the pythagoreom theorem.
5^2+x^2=10^2
25+x^2=100
x^2=75
x= 5√3
The height of the triangle is found, so apply the formula for area:
A=1/2*5√3*10
A=25√3
Which histogram represents the times from team are on the obstacle course
Answer:
Image attached
Step-by-step explanation:
One more than the product of 17 and Matt's savings
Use the variable m to represent Matt's savings.
Answer:
17m=2
Step-by-step explanation:
hey plz pick mine as the brainliest?
If y=−3, then
4y
4+y
=
Answer:
4y4+y is 4x-3x4+-3 so the answer is -51
Step-by-step explanation:
4 times -3 is -12
-12 times 4 is -48
-48 plus -3 is -51
hope this is right lm.ao
Answer:
4 x -3 + 4 = 5
4 x -3= 1
4 + -3 =1
Step-by-step explanation:
I checked the calculator (Sorry if I’m wrong)
The volume (V) of a cube is 216 cubic Inches. What is the surface area (S) of the cube?
Answer:
216in^2
Step-by-step explanation:
6*6*6=216
side length is 6
6^2=36
36*6=216