Examine the quadratic equation 9x^2+12x +4= 0.
A: What is the discriminant of the quadratic equation?
B: Based on the discriminant, how many roots does the equation have?
C: State whether the root(s) are real or complex.
Answer:
See answers and explanations
Step-by-step explanation:
A) Discriminant = b² - 4ac = (12)² - 4(9)(4) = 144 - 144 = 0
B) Since the discriminant is 0, this means the equation only has one root.
C) The root is real in this case since the discriminant is not negative. Otherwise, we would have two imaginary roots if it were (remember that complex roots come in pairs)
Please help asap. No links for a answer or I will report you
8th Grade
Answer:
B
Step-by-step explanation:
A linear function is described by a x term to the power of 1 or even 0. A function when x is to the second power is most usually not a linear function.
In answer A, you have x multiplied against -3x. This will cause an x squared term, so this is not a linear function.
In answer B, you have 1/2 multiplied against x, which is a regular x term subtracted by 2x, causing a regular x term, meaning this function is linear. However, in the small possibility it is not, we will keep going.
In answer C, there is an x squared term so this is not linear.
In answer D, the expression has 1/2x times 2x, which will cause an x squared term.
Thus, the answer is B, which is the only equation without an x squared term.
Geometry help please. What is J? What is G?
Answer:
j = 32
g = 78
Step-by-step explanation:
because they are similar you can use CPCTC corresponding parts of congruent triangles are congruent to determine f = j and h = g
Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES
Answer:
i can't see clear
Someone please help this is due soon
Answer:
Step-by-step explanation:
the picture is telling us that the angles Q and R are equal so set them equal
9x-17 = 4x + 28
5x = 45
x = 9
hurry pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
What is the area of the figure?
A. 48
B. 84
C. 66
D. 72
Answer:
D
Step-by-step explanation:
5 x 8 = 40
2 x 2 = 4
4 x 7 = 28
40 + 4 + 28 = 72
if p is inversely proportional to the square of q, and p is 9 when q is 5, determine p when q is equal to 3
Answer: tell me if i am wrong
p = 304
Step-by-step explanation:
Given p is inversely proportional to q² then the equation relating them is
p = [tex]\frac{k}{q^{2} }[/tex] ← k is the constant of proportion
To find k use the condition p = 19 when q is 8, then
19 = [tex]\frac{k}{8^{2} }[/tex] =[tex]\frac{k}{64}[/tex] ( multiply both sides by 64 )
k = 1216
p = [tex]\frac{1216}{q^{2} }[/tex] ← equation of proportion
When q = 2, then
p = [tex]\frac{1216}{2^{2} }[/tex]=[tex]\frac{1216}{4}[/tex]=304
1_4/5 + 2_1/10 pls help
Answer:
3.9
Step-by-step explanation:
please mark this answer as brainliest
10 people were asked if they agree that there should be more school days. Of these, 5 responded yes. What percent agreed?
Answer:
50% agreed
Step-by-step explanation:
Answer:
50%
Step-by-step explanation:
5/10 = .5
.5x100 =50
so the answer is 50%
The radius of a circle is 6 miles. What is the circle's area? use 3.14 for .
Answer:
113.04
Step-by-step explanation:
A=Pr^2
6^2=36
36 * 3.14=113.04
Hope it helps.
Please help me!! I need this answered really quick
Answer:
Perimeter = 4x + 18
Step-by-step explanation:
{(x + 3) + (x + 3) + [(x + 3) -x]} × 2 = (2x + 6 + 3) × 2 = 4x + 18
[( width ) + ( length )] × 2
The measure of the vertex angle of an isosceles
triangle is 76 . Find the measure of a base angle.
Answer:
52
Step-by-step explanation:
Let each of the base angles = x
x + x + 76 = 180 Subtract 76 from both sides
x + x = 104 Combine the 2 xs
2x = 104
x = 52
Each base angle has a measure of 52
If triangle ABC is dilated by a scale factor of 2 with a dilation center of A, what will be the coordinates of point B?
Answer:
0,6
Step-by-step explanation:
I hope this helps lol
Marco mixed 2 teaspoons of sugar and 1 teaspoon of milk into his coffee. What is the ratio of teaspoons of sugar
to teaspoons of milk?
A. 2 : 1
B. 1 : 2
C. 1 : 3
D 3 : 2
Answer:
A..................... is answer
The correct answer is: A. 2 : 1
PLEASE SOMEONE HELP ME RN MATH
Answer:
Sure but what's the math problem?
Answer:
where is the pic??
Solve using the quadratic equation.
[tex]3x^{2} -6x-24[/tex]
Solution 1: ___
Solution 2: ___
Answer:
X = 4
X = -2
Step-by-step explanation:
Rate And Like. Salute.
Help, please! I want to finish this last quarter good or I may get kicked out. Thank you!!
Please help me asap. No links or I will report you
8th Grade
Answer:
D. square root of 7 to the power of 3
R. b=6/8
a parallelogram has one side that is 4 centimeters long and one side that is 6 centimeters long. what is the perimeter of the parallelogram? (also i’ll be giving out brainiest to those who provide the correct answer and don’t leave a link)
Answer:
P = 20 cm
Step-by-step explanation:
The appropriate formula is P = 2W + 2L.
Here that comes to P = 2(6 cm) + 2(4 cm) = 20 cm
How to solve for P in a compound interest formula?
Calculation. Formula.
P (1 + r/n)^(nt)
Calculate accrued amount. Principal + Interest. A = P(1 + r)t
Calculate principal amount. Solve for P in terms of A. P = A / (1 + r)t
Calculate principal amount. Solve for P in terms of I. ...
Calculate rate of interest. As a decimal. ...
Calculate rate of interest. As a percent. ...
Calculate time. Solve for t.
The solution for P (Principal amount) in a compound interest Formula is; P = A/(1+ r)^t.
Changing the Subject of a formulaBy convention, the formula for calculating the compound interest is;
A = P(1 + r)^tOn this note, it follows that; the principal amount, P can be calculated by dividing both sides of the equation by the expression; (1+ r)^t.
Ultimately, the solution for P is; P = A/(1+ r)^t.
Read more on subject of the formula;
https://brainly.com/question/24924853
(((4\sqrt(2) - 2 \sqrt(6)) - (\sqrt(2)- \sqrt(6) )))/(\sqrt(3)-1)
Answer:
thx for points
Name each pair of angles as corresponding, alternate interior, alternate exterior, or consecutive. Then solve for x.
Answer:
x = -2
Step-by-step explanation:
These 2 angles are alternate exterior so they're equal to each other.
x + 127 = 125
x = 125 - 127
x = -2
UMMM WHAT.... I NEED HELP ASAP
Answer:
try using photomath, it might help you with the graph
Answer:
the one on the bottom
Step-by-step explanation:
∠C and \angle{D}∠D are vertical angles. If the m\angle{C} m∠C=66o, then what is the m\angle{D} m∠D ?
Answer:
The measure of angle D is of 66º.
Step-by-step explanation:
Vertical Angles:
If two angles are vertical, they have the same measure.
In this question:
Angles C and D are vertical.
Angle C measures 66º.
So the measure of angle D is of 66º.
A 3 digit number is such that twice the hundreds digit is more than the tens digit by 2.The digit is thrice the hundreds digit.When the digits are reversed, the number is increased by 594.Find the number.
Answer:
The number is -341
Step-by-step explanation:
Let the three digit number be represented as 100a+10b+c
Given
2a -b = 2 ---(1)
a = 3c ----(2)
100a+10b+c - 100c -10b -a = 594
99a -99c = 594 ---(3)
From 2 & 3 , we get -
99*a - (99*3*a) = 594
99*2 a = 594
a = -3
a = 3c, c = -1
2*-3 -b = 2, b = -4
Number is -341
X/3 + 4<6 pls help will mark branliest
Answer:
x < 6
Step-by-step explanation:
[tex]\frac{x}{3}+4 < 6[/tex]
Subtract 4 form both sides
[tex]\frac{x}{3}<6-4\\\\\frac{x}{3}<2[/tex]
Multiply both sides by 3
[tex]x < 2*3\\\\x < 6[/tex]
Answer:
X = 5.9- meaning 5.9 or anything under that or lets just say 5 because 5/3 = 1.6 + 4 = 5.6
Step-by-step explanation:
Have a nice day
sorry if its wrong
2x-7=-3x9 what value of x would make this equation true
Answer:
17
Step-by-step explanation:
you are building a rectangular deck the area of the deck should be 250 ft2 you want the length of the deck to be 5 feet longer than twice its width what should the dimensions of the deck be
Answer:
500 feet brainliest please
Step-by-step explanation:
please answer quick I’ll mark you brainliest pls the quarter ends at 12:00
Answer:
46/100
Step-by-step explanation:
also what grade is this