Which of the following equations have two complex solutions? Select all that apply.
(CHECK IMAGE ATTACHED)
Answers
Correct Answer: A and F!!
A- 3x^2+ 5x + 10=0
F- 2x^2 + 12 = -9x
Step-by-step explanation: Just did it and it’s right, hope that helped!! :)
The equations that have two complex solutions are 3x^2 + 5x + 10 = 0 and 2x^2 + 12 = -9x
For a quadratic equation to have a complex solution, hence the discriminant must be less than zero.
The discriminant is expressed as:
D = b^2 - 4ac
For the equation 10x^2 - 10 = 0
D = 0^2 - 4(10)(-10)
D = 400
Option B is false.
For the equation 3x^2 + 5x + 10 = 0
D = 5^2 - 4(3)(10)
D = 25 - 120
D = -95
Since D < 0, hence the equations 3x^2 + 5x + 10 = 0 have two complex solutions
For the equation 2x^2 + 12 = -9x
D = 9^2 - 4(2)(12)
D = 81 - 96
D = -15
Since D < 0, hence the equations 2x^2 + 12 = -9x have two complex solutions
Learn more on quadratic equations here: https://brainly.com/question/1214333
Related Questions
The table below shows the cost per pound of different vegetable
What is the estimated cost for 7.8 pounds of potatoes?
$16
$24
$32
$40
please help
Answers
Answer:
$32
Step-by-step explanation:
To estimate, you first need to round.
7.8 rounded to the nearest whole number is 8.
You then need to find the cost per pound for the potatoes. That is $3.89.
3.89 rounded to the nearest whole number is $4.00.
You then multiply 8 x 4.
8 x 4 = 32.
32 = $32
Answer:
32
Step-by-step explanation:
To get the answer, we need to do an estimated cost. Let's round 3.89 (cost per pound) to 4 and round 7.8 (amount of pounds) to 8. 4x8 is 32, and 32 is an option, so our answer is correct.
PLS HELP ME WITH THIS!!
Answers
Answer:
Step-by-step explanation:
Volume = length * width * height
1) Volume = ( 7 * 3 * 7) + ( [7- 5) * 2 * 7)
= 147 + ( 2 *2 *7)
= 147 + 28
= 175 cubic ft
2) Volume = (6 * 3 *3 ) + ( 1 * 2 *3)
= 54 + 6
= 60 cubic ft
3) Volume = ( 3 * 4 * 7 ) + ( 7 * 4 * [6-4] )
= 84 + ( 7 * 4 * 2)
= 84 + 56
= 140 cubic ft
4) Volume = (3 * 4 * [6-4] ) + ( 12 * 4 * 4)
= (3* 4 * 2) + 192
= 24 + 192
= 216 cubic ft
Mark creates wallpaper by using a stamp to make this pattern.
What transformation did he use to make the pattern?
Answer choices
Translation
Dilation
Rotation
Reflection
Answers
Match the fractions that are equivalent to each other?
Column A
1.
2 1/3
2.
8/5
3.
2 3/5
4.
11/3
Column B
a.7/3
b.1 3/5
c.13/5
d.3 2
Answers
Answer:
1&a 2&b 3&c 4&d
Step-by-step explanation:
...
Answer:
1 and a
2 and b
3 and c
4 and d
This is worth 20 points, please answer! (Please answer with a variable in the equation)
Answers
Answer:
The equation is 41 x 3 and 123-10 the answer is 113
Step-by-step explanation:
First, you have to find out how much 3 times is that is 123 then you take away ten which would be 113.
What is the value of the expression below? 14 divided by 2 + 3 (4) minus (6 and one-half minus 3) 10 and one-half 15 and one-half 30 and one-half 36 and one-half
Answers
Answer:
meaning please I don't get youAnswer:
yo
Step-by-step explanation:
15 and one half
What is the hypotenuse of a right triangle that has legs measuring 6 cm and 8 cm?
a. 100 cm
b. 10 cm
c. 14 cm
d. 50 cm
Answers
Answer:
the answer would be 10
Step-by-step explanation: use the formula c = √(a² + b²)
How do you Notice the y-intercept and then, Use rise/run to identify the slope?
Answers
Answer:
Ris over run
Step-by-step explanation:
The formula for slope is sometimes referred to as "rise over run", because the fraction.
Answer:
Rise over Run, hope this helps :)
Step-by-step explanation:
PLS HELP ASAP!!! I NEED HELP! GIVING OUT 20 PTS! <33
Answers
Answer:
radius: 1.75
pi: 3.14
circumference of the circle: 5.495
i think.
Step-by-step explanation:
Sorry I don’t know anymore
Hope that helped tho!
1. Maria bought seven boxes. A week later half of all her boxes were destroyed in a fire. There are now only 22 boxes left. With how many did she start?
2. Kurt won 40 super bouncy balls playing horseshoes at her school's game night. Later, she gave two to each of her friends. She only has 8 remaining. How many friends does she have?
3. Imani spent half of her weekly allowance playing mini-golf. To earn more money her parents let her wash the car for $4. What is her weekly allowance if she ended with$12?
YOU DON'T HAVE TO SOLVE JUST GIVE ME THE EQUATION.
Answers
Multiply Polynomial Expressions
Answers
Show work thank you
Xx
Answers
Answer:
C bc I am learned it 1 week ago
Step-by-step explanation:
This is worth 20 points please answer! (Also, please write out the equation with a variable.)
Answers
Answer:
64x4=(256) +13=269
Step-by-Step:
If 64 skittles are in each bowl that means there is 4 bowls filled with 64 skittles so you multiply 4 and 64. After that you add how many skittles Evan ate to find the amount of skittles in the bag originally. So 256+13
Answer:
243
Step-by-step explanation:
since there are 64 skittles in one bowl and there are 4 bowls you have to multiply 64 by 4=256
And he ate 13 so you have to subtract 256 from 256 which gives you 243.
equation= (64 x 4) - 13
Mrs. Brooks 1st period class has 28 students. 15 of the students are girls. What is the ratio of boys to all students in the class?
Answers
ok i have been stuck on this most of my math class please help me.
-u/3 = -45
Answers
Answer:
U=135
Step-by-step explanation:
Answer:
U = -135
Step-by-step explanation:
-45 x 3 = -135
-135/3 = -45
The equation of a linear function in point-slope form is y – y1 = m(x – x1). Harold correctly wrote the equation y = 3(x – 7) using a point and the slope. Which point did Harold use?
a) (7, 3)
b) (0, 7)
c) (7, 0)
d) (3, 7)
Answers
Answer:
Step-by-step explanation:
What are the coordinates of point P?
On a coordinate plane, Point P is 2 units to the left and 4.5 units down.
(Negative 4.5, negative 2)
(Negative 2, negative 4.5)
(2, negative 4.5)
Answers
Answer:
negative 2, negative 4.5
Step-by-step explanation
when doing this, you want to figure out (X,Y). X is sideways and Y is up and down. Any number to the left of 0 will be negative, so if you are finding X and you move 2 spaces to the left from 0, you will be at -2. So you found X. Then is says it is 4.5 spaces down. Anything down is also negative. So you would start at -2 since the is where X is. Then move down 4.5 and you will be at -4.5. So -4.5 is what Y is. now you can fill in (X,Y). You will get (-2,-4.5). I hope this helped a bit.
PLEASE HELP WILL GIVE BRAINLIEST
Use the interactive tool to graph the line given the following information:
coordinates (1,–3)
slope of –2
Based on your investigation, what is the value of b for the point (0,b)?
Answers
Answer: [tex]y = -2x - 1[/tex], [tex]b = -1[/tex]
Step-by-step explanation:
[tex]y = mx + b[/tex] [tex]-3 = 1(-2) + b[/tex] [tex]-3 = -2 + b[/tex] [tex]-1 = b[/tex]can somebody tell me what is 3x - 4 = 5?
Answers
Answer:
[tex]x=3[/tex]
Step-by-step explanation:
Move the -4 over to the other side.
[tex]3x=9[/tex]
Divide both sides by 3.
[tex]x=3[/tex]
Answer:
x = 3
Step-by-step explanation:
Step 1: Add 4 to both sides.
3x−4+4=5+4
3x=9
Step 2: Divide both sides by 3.
3x/3 = 9/3
x = 3
Please help ASAP!
Hoping to be named Salesperson of the Month, Seth called the names from 3/5 of a page of the phone book last week. This week, he called the people listed on another 1/2 of a page of the same phone book. How many pages worth of people did Seth call in all?
Write your answer as a fraction or as a whole or mixed number.
Answers
Answer: 11/10 or 1 1/10 pages
Step-by-step explanation:
3/5 + 1/2 = x
find the LCD so that you can add the fractions.
3/5 (2/2) = 6/10
1/2 (5/5) 5/10
6/10 + 5/10 = 11/10 or 1 1/10
the answer choices is with the second picture the little boxes haves to go with a picture graph
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yeah just yeah i need help-
Answers
Helppppppppppppppp
plzzzzzz
Answers
Answer:
I'm not completely sure so if this is wrong plz dont get mad but I think it might be 3 and 8/10
1. You purchase a bag of chips that cost $4. The sales tax is 6.5% what will be the total cost.
2.You buy some shoes that cost $100. Your total, with tax, is $106. what is the sales tax rate.
I"LL GIVE BRAINLIEST
Answers
Answer:
the first one is 3.74 and the second one is 6%
its basic percent subtraction
Step-by-step explanation
1. 4.26, multiply $4 by 6.5% (0.065)
2. 6% is the sales tax rate :)
Kylie reflected figure C across the y-axis, then translated it up 3 units and 1 unit to the right to create congruent figure C'. Gavin claims there is another method to transform figure C to figure C'. Which of the following transformations could be Gavin’s method? A. Figure C is reflected over the x-axis. B. Figure C is reflected over the y-axis. C. Figure C is rotated 270 counterclockwise about the origin. D. Figure C is translated 7 units to the left and 3 units up. hrry pls in a rush
Answers
Answer:
D. Figure C is translated 7 units to the left and 3 units up.
Step-by-step explanation:
I hope this helps. I am sooo sorry nobody answered you quick enough. :) I hope you have had a wonderful day!
Answer:
It is d
Step-by-step explanation:
i took the quiz and got it right
Can someone PLZ help me
Answers
Hannah is getting balloons for her father's birthday party. She wants each balloon string to be 6 feet long. At the party store, string is sold by the yard. If Hannah wants to get 66 balloons, how many yards of string will she need?
Answers
Please help will mark brainleist
Hiiii
Answers
Help me 20 points!!! 7th-grade math.
Answers
Answer:
the answer is 0.7+1.8h
Step-by-step explanation:
Umm I don't understand this...Can someone explain it...I will mark the one who make it a little clear to me..
Answers
Answer: 12
Step-by-step explanation:
step 1 take z.y+x-b+a-o
step 2 lets say that Z=3 Y=2 X=4 B=6 A=9 O=1
step 3 write out the problem 3.2=6+4=10-6=4+9=13-1=12
step 4 when you get this done and you have the same answer as mine show your teacher that you are done just take what i typed for the problem.
Explanation
