Answer:
roots are not real
Step-by-step explanation:
Given a quadratic equation in standard form
ax² + bx + c = 0 (a ≠ 0 )
Then the nature of the roots can be found using the discriminant
Δ = b² - 4ac
• If b² - 4ac > 0 then roots are real and distinct
• If b² - 4ac = 0 then roots are real and equal
• If b² - 4ac < 0 then roots are not real
Given
9x² - 6x + 2 = 0
with a = 9, b = - 6, c = 2 , then
b² - 4ac = (- 6)² - (4× 9 × 2) = 36 - 72 = - 36
Since b² - 4ac < 0 then the roots are not real
a
b
75°
115°
e
75°
Which lines are parallel? Justify your answer.
Lines a and b are parallel because their alternate
exterior angles are congruent.
Lines a and b are parallel because their same side
exterior angles are supplementary.
O Lines e and fare parallel because their alternate
exterior angles are congruent.
O Lines e and fare parallel because their same side
exterior angles are congruent.
Answer:
C
Step-by-step explanation:
The lines that are parallel in the image given are: Lines e and f are parallel because their alternate exterior angles are congruent.
What are Alternate Exterior Angles?When a transversal intersects two parallel lines, the alternate exterior angles that are formed are congruent to each other.
Conversely, if the alternate exterior angles formed are congruent, then both lines that are cut by a transversal are parallel.
Therefore, the lines that are parallel in the image given are: Lines e and f are parallel because their alternate exterior angles are congruent.
Learn more about alternate exterior angles on:
https://brainly.com/question/26111088
12,960= 10 x i really need help
Answer:129.6
Step-by-step explanation:Because it's the answer
From January to June, there are more daylight hours as June approaches.
What is the dependent variable?
Answer:
The daylight depends on the month so daylight is the dependent and the months are independet
Step-by-step explanation:
es 1024 divisible por 32
Answer:
Yes
Step-by-step explanation:
answer is 32
Simple, plz help! Need Plato answer
Answer:
11
Step-by-step explanation:
11x11
Express in the form
1
:
n
8
:
24
Answer:
1:3
Step-by-step explanation:
Answer:
1:3 is the correct answer
If you are given the points: ( 4 , 10 ) and ( 8 , 9 ), what are your y1 and y2?
A. y1 = 10 and y2 = 9
B. y1 = 4 and y2 = 8
C. y1 = 9 and y2 = 10
D. y1 = 10 and y2 = 9
Answer:
A and D are the same answer and thier both correct i think
Step-by-step explanation:
the y in the first ordered pair would be your y1 then the y in your second ordered pair would be your y2 y=the second number in every ordered pair
The rectangle shown is enlarged such that each side is multiplied by the value of the width, 2x. Which expression represents the perimeter of the enlarged rectangle? The rectangle shown is enlarged such that each side is multiplied by the value of the width, 2x. Which expression represents the perimeter of the enlarged rectangle? A. 4x + 2y B. 8x^2 + 2y C. 4x^2+2xy D. 8x^2+4xy
Answer:
The answer is D. 8x^2+4xyStep-by-step explanation:
We know that the expression for the perimeter is given as
P=2l+2B
now given that the value of the width is =2x
length= 4x
and the breadth=y
P=4x+2y
let us multiply both the length and the width with 2x we have
P=2x(4x+2y)
P=8x^2+4xy
the answer is
D. 8x^2+4xy
Find the distance between the two points in simplest radical form.
(3, -8) and (-6,4)
Answer:
15
I got it wrong on delta math, they said 15 was the right answer.
find solution and show work for (3.4^17)^4
Work Shown:
(3.4^17)^4
3.4^(17*4)
3.4^68
The general rule is (a^b)^c = a^(b*c)
does anyone else hate school right know
Yeah it literally sucks I can't concentrate because of the internet issues
Answer:
Yes! I hate this thing as well it ruined everything!!!!!!!
The numbers in this sequence increase by the same amount each time.
Answer:
2, 4, 6, 8 , 10
Step-by-step explanation:
Arun has apples and oranges in the ratio 5:3. Convert the ratio of apples and oranges to the total fruits in fraction form and percentage respectively.
Answer:
Apples: 5/8 or 62.5%
Oranges: 3/8 or 37.5%
Step-by-step explanation:
You would figure this out because Aran has 5 apples and 3 oranges and if you’re trying to find the percentage to total number of fruits you have, it would be 5 apples/ 8 fruits and 3 oranges/ 8 fruits.
Hope this helped :)
Find the x and y intercept of y=-3x+4
Answer:
I've attached the answer below.
Step-by-step explanation:
did it tell you what x and y equal
Marco needs to buy some dog food at the nearest store five bags of dog food cost $27 and 50 Cent how much would Marco spin on three bags of dog food
Answer:
16.5
Step-by-step explanation:
27.50/5 =5.5x3=16.5
Please I need some answers
Answer:
i) 4 ii) 9 iii) 16 iv) 25
Step-by-step explanation:
2 x 2 = 4
3 x 3 = 9
4 x 4 = 16
5 x5 = 25
Answer:
i) is 2x2 which is 4
ii) is 3x3 which is 9
iii) is 4x4 which is 16
iiii) is 5x5 which is 25
Step-by-step explanation:
the exponent tells you how many times you multiply the base number by itself.
solve equation for x -16= 3x + 11
Answer:
13.5
Step-by-step explanation:
Step 1:
x - 16 = 3x + 11 Equation
Step 2:
- 16 = 2x + 11 Subtract x on both sides
Step 3:
- 27 = 2x Subtract 11 on both sides
Step 4:
x = - 27 ÷ 2
Answer:
x = 13.5
Hope This Helps :)
Answer:
[tex]x = -\frac{27}{2}[/tex]
Step-by-step explanation:
Combine like terms: x - 3x = 16 + 11Simplify: -2x = 27Divide each side by -2 to cancel out the -2 next to x. It should now look like this: x = -27/2I hope this helps!
5. Find the value x. (3pts.)
6x - 18
3x + 18
someone help
Answer:
x=12
Step-by-step explanation:
6x - 18 = 3x + 18
6x = 3x + 36
3x = 36
x=12
Answer:
its 12
Step-by-step explanation:
Two points are _______________________ collinear
a
Always
b
Sometimes
c
Never
Answer:
a
Step-by-step explanation:
Two points are always collinear since we can draw a distinct (one) line through them.
Answer:
always
Step-by-step explanation:
What is the solution to this equation?
2x+10=28
Answer:
x=9
Step-by-step explanation:
2x+10=28
Subtract 10 from both sides
2x=18
Divide by 2 on both sides
x=9
Answer:
x = 9
Step-by-step explanation:
2x = 28 - 10
2x = 18
x = 9
(-8a^2 - 1)(3a^2 - 5)
Answer:
13a² + 5
Step-by-step explanation:
Not 100% but 90% sure. Work on Picture.
Oceanside bike rental shop charges 16 dollars plus 9 dollars an hour for renting a bike.Sam paid 52 dollars to rent a bike.How many hours did he pay to have the bike checked out?
Answer:
4 Hours
Step-by-step explanation:
Since the equation is:
y = 9x + 16
You have to find x
This is the logical way:
52-16 = 36 because thats the starting fee
So 36 divided by 9 equals 4
You do that because 9 is the charge per hr
So he rented it for 4 hours.
Hope this helps:)
Need help ASAP please!!! The formula determines the magnitude of an earthquake, where I is the intensity of the earthquake and S is the intensity of a “standard earthquake.” How many times stronger is an earthquake with a magnitude of 8 than an earthquake with a magnitude of 6? Show your work.
Answer:
100
Step-by-step explanation:
M = log(I/S)
The intensity of the first earthquake:
8 = log(I₁/S)
10⁸ = I₁/S
I₁ = 10⁸ S
The intensity of the second earthquake:
6 = log(I₂/S)
10⁶ = I₂/S
I₂ = 10⁶ S
The ratio is:
I₁/I₂ = (10⁸ S) / (10⁶ S)
I₁/I₂ = 100
It is 100 times stronger.
An earthquake with a magnitude of 8 is 100 times stronger than an earthquake with a magnitude of 6.
Given the following data:
Magnitude A = 8Magnitude B = 6To determine how many times stronger is an earthquake with a magnitude of 8 than an earthquake with a magnitude of 6:
Mathematically, the magnitude of an earthquake is given by the formula:
[tex]Magnitude = Log(\frac{I}{S} )[/tex]
Where:
I is the intensity of the earthquake.S is the intensity of a standard earthquake.For earthquake A:
[tex]8=Log (\frac{I_A}{S} )\\\\10^8=\frac{I_A}{S}\\\\I_A=S10^8[/tex]
For earthquake B:
[tex]6=Log (\frac{I_B}{S} )\\\\10^6=\frac{I_B}{S}\\\\I_B=S10^6[/tex]
For strength:
[tex]Strength = \frac{I_A}{I_B} \\\\Strength = \frac{S10^8}{S10^6} \\\\Strength = 10^2[/tex]
Strength = 100
Read more: https://brainly.com/question/21620194
tell whether each triangle with the given side lengths is a right triangle
Answer: Yes it is
Step-by-step explanation:
.
8.) A can of tennis balls is $4.00 and is 15% off. The sales tax is 6%.
Help pls
4 2/8 As A Improper Fraction
The answer is 17/4 feel free to mark as brainliest:)
Lisa lit a candle with a height of 8 inches. When lit, this candle loses 10% of its original
height every hour.
Answer:
1.25 hours or 1 hour and 15 minutesStep-by-step explanation:
Question
Lisa lit a candle with a height of 8 inches. When lit, this candle loses 10% of its original height every hour. Please complete the following sentence by writing the number in the blank. Until the candle has been burning for at least _______ hours, the height of Jennifer's candle will be more than 7 inches.Candle looses 10% of 8 inches, it equals:
8*0.1 = 0.8 inches an hourLet x be required time, then:
8 - 0.8x > 70.8x < 8 - 70.8x < 1x < 1/0.8x < 1.25or 1 hour 15 minutesWILL MARK BRAINLYLIST PLZZ HELP!!
Answer:
x = 49
Step-by-step explanation:
180-131=49
they are supplementary angles
Answer:
49
Step-by-step explanation:
Given P(A)=0.8P(A)=0.8, P(B)=0.62P(B)=0.62 and P(A union B)=0.874P(A∪B)=0.874, find the value of P(A unionB)P(A∩B), rounding to the nearest thousandth, if necessary.
Use the inclusion/exclusion principle:
P(A ∩ B) = P(A) + P(B) - P(A ∪ B)
So
P(A ∩ B) = 0.8 + 0.62 - 0.874 = 0.546
Write and solve an equation. Make sure you show your work.
1. Tyler paid $178 to get his car repaired. He was charged $73 for parts and $35 per hour
for labor. How many hours did it take to repair his car?
Someone please show me how to do this step by step and please don’t use this as a free ticket.
Answer:
3h
Step-by-step explanation:
178-73=105
150/35=3