*shocking*
-runs in high heels-
-trips-
oh my! dear child..
Which statement is true about this quadratic equation? y=-2x^2+9x-12 A. There are two real solutions. B. There is one complex solution. C. There are two complex solutions. D. There is one real solution.
A quadratic equation is an equation that can be placed in the form a·x² + b·x + c = 0
The option that gives the true statement about the quadratic equation is option C.
C. There are two complex solutions
Reason:
The given quadratic equation can be presented as follows;
y = -2·x² + 9·x - 12
The factored form of the quadratic equation is presented as follows;
The radical of the given quadratic equation is therefore;
[tex]\sqrt{9^2 - 4 \times (-2) \times (-12)} = \sqrt{81 - 96} = \sqrt{-15}[/tex], which gives the following solutions;
[tex]x = \dfrac{(-9\pm\sqrt{-15} )}{2 \times (-2)} = \dfrac{-9 \pm \sqrt{-15} }{-4}[/tex]
[tex]x = \dfrac{-9 +\sqrt{-15} }{-4} \ or \ x = \dfrac{-9 -\sqrt{-15} }{-4}[/tex]
Therefore there are two complex solutions;
Learn more about quadratic equations here:
https://brainly.com/question/12402430
Answer:
the answer is c
Step-by-step explanation:
There are two complex solutions.
what is π plus e its so easy
HURRY HELP WILL GIVE MORE POINTS after answered
The function y - 3 = 4(x + 2) is in point-slope form. Select the equivalent equation in slope-intercept form
All we need to do is solve for y.
[tex]y - 3 = 4(x + 2)\\\\y - 3 = 4x + 8\\\\y = 4x + 11[/tex]
The answer is A. y = 4x + 11.
4cos^2(x)-7cos(x)+3
Please help and explain how you did it :)
I assume you're asked to solve
4 cos²(x) - 7 cos(x) + 3 = 0
Factor the left side:
(4 cos(x) - 3) (cos(x) - 1) = 0
Then either
4 cos(x) - 3 = 0 or cos(x) - 1 = 0
cos(x) = 3/4 or cos(x) = 1
From the first case, we get
x = cos⁻¹(3/4) + 2nπ or x = -cos⁻¹(3/4) + 2nπ
and from the second,
x = nπ
where n is any integer.
hich correctly describes how the graph of the inequality 4x − 2y > 20 is shaded?
Answer:
First we need to express y in this inequality:
-2y > -4x + 20
-y > -2x + 10
y < 2x - 10
The line isn't solid because the "less" sign doesn't include equal in it.
Because the sign is "less than" the shaded part is Below the line.
Merging these 2 conclusion we get the answer:
below the dashed line.
Step-by-step explanation:
please please help i’ll give brainliest tysm:))
Answer:
The answer is 66 feet.
Hope it helps!!
On a sunny day, if a 36-inch yardstick casts a 21-inch shadow,
how tall is a building whose shadow is 168 ft?
It would be 288 ft.
Nine less than the product of 21 and a number
Answer:
21x - 9
Step-by-step explanation:
math
I am stuck on part b
Answer: answer is 3.
Step-by-step explanation:
Mean is the sum of all the numbers divided by how many numbers are being added.
Mean = (1 + 2 + 3 + 4 + 5)/5
= 15/5
= 3
marrisa dance studio charge a monthly fee
Answer:
lool what's the question
Step-by-step explanation:
how is life treating you?
A teacher has 600 counters. He keeps 96 counters at his desk and gives the rest to 3 groups of students. The first group of students gets twice as many counters as the second group of students. The third group of students gets four times as many counters as the second group. How many counters did the second group get?
Answer:
o
Step-by-step explanation:
o
Which inequality correctly compares Three-fourths, One-seventh, and Five-sixths? One-seventh < Three-fourths < Five-sixths One-seventh < Five-sixths < Three-fourths Three-fourths < Five-sixths < One-seventh Three-fourths < One-seventh < Five-sixths
Answer:
The inequality which correctly compares Three-fourths, One-seventh, and Five-sixths is : One-seventh < Three-fourths < Five-sixths.
The first option is correct.
Step-by-step explanation:
To determine which inequality correctly compares Three-fourths, One-seventh, and Five-sixths, we will arrange them in ascending order.
To do this, first, we will determine the LCM of the fractions denominators..
Three-fourths, One-seventh, and Five-sixths
[tex]\frac{3}{4}, \frac{1}{7}, and \frac{5}{6}[/tex]
The denominators are 4, 7 and 6.
LCM of 4,7 and 6 is 84
Then, we will write the fractions in a form whereby they all have the same denominators.
[tex]\frac{3}{4}, \frac{1}{7}, and \frac{5}{6}[/tex] can be written as
[tex]\frac{63}{84}, \frac{12}{84}, and \frac{70}{84}[/tex]
The resulting order of the numerators gives the order of the fractions.
Now, we will arrange [tex]\frac{63}{84}, \frac{12}{84}, and \frac{70}{84}[/tex] in ascending order. This becomes
[tex]\frac{12}{84}, \frac{63}{84},and \frac{70}{84}[/tex].
∴ The ascending order of the fractions is [tex]\frac{1}{7}, \frac{3}{4},and \frac{5}{6}[/tex].
That is, One-seventh, Three-fourths, and Five-sixths.
Hence, we can write that
One-seventh < Three-fourths < Five-sixths.
This is the inequality which correctly compares Three-fourths, One-seventh, and Five-sixths
Answer:
d
Step-by-step explanation:
Write a conjecture that describes the pattern below.
3, 9, 27, 81...
Answer:
the pattern is going by 3s and u would multiply 3 by each number
The newspaper in Haventown had a circulation of 80,000 papers in the year 2000. In 2010, the circulation was 50,000. With x=0 representing the year 2000, the graph below models this scenario. What number will complete the point-slope equation that models this scenario?
y−50,000=[_______](x−10)
Answer:
Step-by-step explanation:
sup
1.5(2x – 4) = 2(4x + 2)
Answer: 2
Step-by-step explanation:
Answer:
x = -2
Step-by-step explanation:
Step-by-step on how to solve it is in the image below.
Hope this helps! :)
if pml is congruent to trq find qr?
Answer:
16
Step-by-step explanation:
Write the equation in the graph below.
Answer:
Y=1/2x+2
Step-by-step explanation:
The slope is always rise/run and the Y intercept is 2.
what is the product of (3x+5) and (x+4)?
Answer:
3x^2+17x+20
Step-by-step explanation:
Answer: x = y
y = -4
y = 3x + 2
x = 8
Simplify: (-3a2b5)2
Find (x - 4)2`Find the product: (3x + 5)(4x - 1)
Use FOIL:
F: 3x*4x=12x^2
O: 3x*-1 = -3x
I: 5*4x = 20x
L: 5*-1 = -5
Combine these products to get:
12x^2+17x-5
------------------------
Which of the following is the equation of a vertical line?
x = y
y = -4
y = 3x + 2
x = 8
Answer x=8 ; The graph is the set of points where x=8.
-----------------------
Simplify: (-3a2b5)2
=(-3a^2b^5)(-3a2b^5)
=9a^4b^10
------------
Find (x - 4)^2
=(x-4)(x-4)
Use FOIL to get:
x^2-4x-4x+16
=x^2-8x+16
Step-by-step explanation:All work needed to arrive at a correct answer. If it is not a question that requires work, you will need to provide a complete explanation of how you determined the correct answer. (Explanations for those problems not requiring work must demonstrate your understanding of the concept.)
I’ll mark you brainlist I’ll mark you brainlist write in y=mx+b form
A rate in which the second quantity in the comparison is one unit is known as a
______________________.
Answer:
Unit rate
Step-by-step explanation:
Answer:
Unit rate
Step-by-step explanation:
Unit rate -- A rate in which the second quantity in the comparison is one unit.
dudee plz help will be given the brainlist if answered correctly
Answer:
hey im not actually here to help you, i just need points. thanks for the points
Step-by-step explanation:
Kaylee earned $446.40 at her job when she worked for 18 hours. What was her hourly wage, in dollars per hour?
On the double number line below, fill in the given values, then use multiplication or division to find the missing value.
Answer:
Kaylee earned $24.8 per minute.
Step-by-step explanation:
Basically, just divide the total wage, by hours earned.
in the blanks I assume you just put 24.8 dolars per 1 hour and then the final 446.40 for 18 hours at the end of the number line :)
If possible may I have brainlist? Thanks g
To rent a building for a school dance Ava paid 120$ plus 2.50 for each student who attended if she paid a total of $325 how many students attended the dance
Answer:
82
Step-by-step explanation:
Answer:
82
Step-by-step explanation:
The first thing you do here is subtract 120 from 325
325-120=205
The next step is to divide 205 by 2.50 to find how many students attended
205/2.50=82
Therefore 82 students paid the $2.50 price to attend the dance
1/2x-3=9 please bhelp me
Answer:
x=24
Step-by-step explanation:
Step 1: Add 3 to both sides: 1/2x-3+3=9+3
Simplify that: 1/2x=12
Step 2: Multiply both sides by 2: 1/2x*2=2*12
Simplify: x=24
Hope this helped! :)
what 30+30+30+4+60+9+80
Answer:
243
Step-by-step explanation:
I think of a number q, multiply it by 2 and add 5. I get the same answer as when I minus 2 from q. Find the value of q
Given:
A number is q, multiply it by 2 and add 5.
You get the same answer as when you minus 2 from q.
To find:
The value of q.
Solution:
The algebraic representation of the statement "a number is q, multiply it by 2 and add 5" is
Multiply q by 2 = 2q
Multiply q by 2 and then add 5 : 2q + 5
So, the first result is 2q+5.
When you minus 2 from q = q-2
So, the second result is q-2.
According to the question, both results are equal. Equate both results to get the value of q.
[tex]2q+5=q-2[/tex]
Isolate variable terms.
[tex]2q-q=-5-2[/tex]
[tex]q=-7[/tex]
Therefore, the value of q is -7.
What is Зх — 4y + 3x + 2y
Answer:
6x - 2y
Step-by-step explanation:
3x - 4y + 3x + 2y
combine like terms
6x -2y
hope this helps!!!
this is duee in 1 hourrr helllp!!!!
Answer:
4/5
Step-by-step explanation:
Rise = 4
Run = 5
~theLocoCoco
Answer:
4/5
Step-by-step explanation:
Pls help me asap!!!!
Answer:b
Step-by-step explanation:y=2x-3