Answer:
2
Step-by-step explanation:
Given the quadratic equation
3x²+2x-1=0
Let tthe root be α and β
Sum of root α+β = -b/a
Product of root αβ = c/a
Given that;
a = 3, b = 2 and c = -1
α+β = -2/3
αβ = -1/3
To get 1/α + 1/β
Find the LCM
1/α + 1/β
= (α+β)/αβ
= (-2/3)/(-1/3)
= -2/3 * 3/-1
= 2
Hence the required answer is 2
Answer these both correctly I’ll give brainalist + 13 points
Answer: you have it right
Step-by-step explanation:
Answer:
1. Sumpplemtery 2. Complementary.
Step-by-step explanation:
The graph of quadratic parent function f was transformed to create the graph of g(x) = f(x + 2) - 5. Which graph best represents g?
Answer:
Step-by-step explanation:
C
Please help, test due in 1 hour and it’s a grade. Will give good review and brainliest!
trapezoid, i got the last one wrong
Answer: Trapezoid
Step-by-step explanation:
A trapezoid is a quadrilateral with only one pair of parallel sides; the bases are parallel to each other. The legs don't have to be parallel (they're not).
Find the value of x on a triangle
Answer:
x = 25
Step-by-step explanation:
The sum of the angles of a triangle is 180 degrees.
90 + x+ 2x+15 =180
Combine like terms
105+3x = 180
Subtract 105 from each side
105+3x-105 = 180-105
3x =75
Divide each side by 3
3x/3 = 75/3
x = 25
Answer:
25°
Step-by-step explanation:
2x + 15° + x + 90 °= 180° ( being sum of angles of triangle)3x + 105° = 180 °3x = 180 °- 105°3x = 75° x = 25°hope it helps :)what is the solution of
sqrt 2x + 4 equals 16?
Answer: x=6
Step-by-step explanation:
2x+4=16
-4 -4
(2x=12)/2
x=6
Find the ratio of 15 seconds to 55 seconds
Answer:
Step-by-step explanation:
15:55
= 3:11
Tiana uploaded 150 songs from her computer to her cell phone. These songs took up 300
megabytes of space on her phone. Each song took up the same amount of space.
How many megabytes do 25 of these songs take up?
Answer:
50mb
Step-by-step explanation:
So start with what you have 300/150 = 2 so each song took up 2mb of space, so 25 songs would take up 25x2= 50mb
The number of megabytes taken up by 25 songs is 50 megabytes.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
In 2 hours, a man can walk for 6 miles
In 1 hour, a man will walk for 3 miles.
We have,
150 songs = 300 megabytes
1 song = 300 /150 megabytes
1 song = 2 megabytes ______(1)
Now,
Multiply 25 on both sides of (1).
25 songs = 25 x 2 megabytes
25 songs = 50 megabytes
Thus,
25 songs will take 50 megabytes.
Learn more about unit rates here:
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how many 8ths are in a pound
Answer:There are 129 eighths in one pound of
Step-by-step explanation:
What is the equation for the lines that passes through the coordinates (2,7) and (0,1)
Answer:
(x1,y1) is (2,7)
(x2,y2) is (0,1)
Step-by-step explanation:
Point-slope form is:
(y-y1) = ( (y2-y1) / (x2-x1) )(x - x1)
y - 7 =( (-6)/(0-2) )(x-2)
y - 7 = 3x - 6
y = 3x + 1 [slope-intercept form]
Check:
Is (2,7) on the line:
7 = 3(2) + 1 ?
y = 7 ?yes
Is (0,1) on the line:
1 = 3(0) + 1 ?
1 = 1 ? yes
Answer:
y=3x+1
to find the slope, find the change in y/change in x
7-1=6
2-0=2
6/2=3
3 is your slope
your y intercept occurs when x=0, and that was given to you in the problem
(0,1)
your y int is 1
y=3x+1
This is a Maths Question ❓ for you
Show your brain power...
Answer:
a. a/400=6/25
a=6×400/25=16×6=96
Step-by-step explanation:
b.5b/8=2/5
5b=2×8/5
b=16/5×1/5=16/25
Answer and explain please ILL MARK BRAINLIEST
Answer:
Step-by-step explanation:
0.1x+0.25(102-x)=17.10
0.1x+25.5-0.25x=17.10
-0.15x=-8.4
x=56
help
Savings Account
80
60
Total Saved ($)
40
20
o
2 4 6 8
Time (weeks)
What equation shows the line through the
data points on the graph?
A y = 20x
C y = 15x
B y = x + 20 D y = 40x
Answer:
14 because when you divide it but not sure what yours is about
Step-by-step explanation:
PLEASE HELP!!!?!?!!!?!?
what is 4 .5 + 1/2 ?
The answer to that is 5, award me brainliest please!
ill mark brainlist plss help
Twenty -six students are going on a field trip and 18 students are staying at school. What is the ratio of the number of students who are going on the field trip to the number of students who are staying at school?
Answer:
26 to 18
26 cause that's the number of kids goin g to the field trip to 18 cause that's all the kids staying
Which angles are vertical angles and, therefore, congruent?
A and D
A and G
A and E
A and F
Answer:
A and F
Step-by-step explanation:
Layla misses 5% of the free throws she attempts in a season. How many total free throws did she attempt if she missed 51?
Answer:
49.47
Step-by-step explanation:
Layla missed 5%
so what you do is take the number 51
Then subtract it by 3%
And you get 49.47
Polygon A has an area of 18 square feet and Polygon B has an area of 98 square feet. If the two polygons are similar, and Polygon B has a side length of 14 feet, find the corresponding side length in Polygon A.
Answer:
6 feet
Step-by-step explanation:
Let the length of side length in polygon A be represented by x. Since the two polygons are similar, then it can be deduced that;
Area scale factor = [tex](linear scale factor)^{2}[/tex]
linear scale factor = [tex]\sqrt{Area scale factor}[/tex]
Area scale factor = [tex]\frac{98}{18}[/tex]
So that,
linear scale factor = [tex]\sqrt{\frac{98}{18} }[/tex]
= 2.3333
The length of side of polygon A = [tex]\frac{14}{2.3333}[/tex]
= 6.0085
Therefore, the corresponding side length of polygon A is 6 feet.
why is angle 3 congruent to angle 2
Answer:
because it is intersecting I think
Step-by-step explanation:
solve the equations by factorization method:
(ii) x² - 2ax + a²-b=0
Answer:
x=a+ b x=a-b
Step-by-step explanation:
BRAINLIEST PLSSSSSSSS
USE SYMBOLAB IT WORKS AND MATHPAPA
Please need help thank
Answer:
7
Step-by-step explanation:
If each amount of time is a separate person, then 7
Plz plz plz, HELP!!!! I will give u brainlylist
Answer:
AB ,AE
Step-by-step explanation:
What do you call a characteristic of a living thing that helps it survive?
Answer:
An adaptation is a characteristic that helps a living thing survive and reproduce. True Natural selection is a change in the characteristics of living things over thing
The one characteristic of a living thing which helps it to survive is an adaptation. This help to survive an organism in its environment.
What is adaptation?Adaptation for the living thing is the main characteristics which help a living thing to be alive. It helps the living things to survive in its environment.
Importance of adaptation-
Organism are adapted to habitual thing, which help them to survive.Help to behave in changing environment.Enhance the standard of living.Thus, the one characteristic of a living thing which helps it to survive is an adaptation. This help to survive an organism in its environment.
Learn more about adaptation here;
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Which scenario matches the relationship shown in the table?
Sakura walked 6 miles yesterday.
Sakura walks 6 miles every day.
Sakura walked less than 6 miles.
Sakura walked 1 day in 6 miles.
Answer:
It’s B) sally walks 6 miles every day
Step-by-step explanation:
Which of the following satisfies Ž -2 = 12
Answer:
14
Step-by-step explanation:
if z is 14 than z-2=12
because 14-2=12
Can somebody plz tell me which one is congruent or supplementary
i need help plzzzzzzzzzz
Answer:
I think c
Step-by-step explanation:
Help please I’m begging u
Answer:
Step-by-step explanation:
if ∠1=∠2
2x+12=3x+3
3x-2x=12-3
x=9
∠1=2×+12=30°
∠2=30°
∠VXW=30+30=60°
A cats' home has a raffle to raise money.
There is 1 prize to be won in the raffle.
Lottie buys 15 raffle tickets.
A total of 360 raffle tickets are sold.
Find the probability that Lottie does not win the prize.
solve for the valuve of 3⁴ - 5 x 3
Answer:
66
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
3⁴ - 5 × 3
Step 2: Evaluate
Evaluate exponents: 81 - 5 × 3Multiply: 81 - 15Subtract: 66