describe how to derive the quadratic formula a quadratic equation in standard form
Answer:
The quadratic formula is derived from a quadratic equation in standard form when solving for x by completing the square. The steps involve creating a perfect square trinomial, isolating the trinomial, and taking the square root of both sides. The variable is then isolated to give the solutions to the equation.
BRAINLIEST
Please help ASAP and leave a small explanation :)
Joshua shops at two different stores for a new phone.
Cheap Cell: Only $150, plus an instant 15% rebate
Cells For Less: Regular Price $150 sale price $125
How much money can Joshua expect to save at Cheap Cell?
During a sale, a store offered a 40% discount on a tablet that originally sold for $760.
After the sale, the discounted price of the tablet was marked up by 40%.
To the nearest cent, what is the difference between the original price $760 and the price after the markup?
Answer:
304
Step-by-step explanation: x/760 40/100=
760x40=30,400
30,400 divided by 100=304
Standard form of 4/6x+5
Answer:
y=-6x-5
Step-by-step explanation:
Pls hlp<3 Given ΔBCD ~ ΔEFG. Find the length of BC.
Answer:
120
Step-by-step explanation:
180-35-25=120
or
35+25=60
180-60=120
Answer:
BC = 200/7 ≈ 28.57
Step-by-step explanation:
Set up a proportion to solve for the missing side length.
BC/CD = FE/EG
BC/25 = 16/14
BC = 16/14 · 25
BC = 200/7 ≈ 28.57
PLS HELP I WILL GIVE BRAINLEST
1. Patrick is saving money to buy a video game that costs $68.
Part A. Patrick receives $6 every week for doing chores at home. Patrick spends $2.00 every week and saves the rest.
How many full weeks will it take Patrick to save enough money to purchase the video game? Show your work and justify your answer.
Part B. Patrick can earn extra money by cutting grass. His neighbors will pay him $4.00 for each lawn that takes him 30 minutes. What is the amount of time, in extra HOURS, that Patrick would have to spend cutting grass to be able to buy a second $68 video game for his friend? Show your work to justify your answer.
Answer:
part A: 17 weeks sorry if its wrong
part b: 120 hours sorry if its wrong
Step-by-step explanation:
Math
4
Slope
=-
y-intercept = 5
5'
B) y=1
4
A) y=-x + 5
5
2
C) y=-x+ 5
5
4
--x + 5
5
2
D) y = 5x +
5
OA
Answer:
A.
Step-by-step explanation:
y=mx + b where m is the slope and b is the y-intercept. So substituting 4/5 for m and 5 for b, you get answer A.
What is the solution to this equation? 3 square root (1/8-x)=-1/2
NEED ANSWER ASAP please
Answer:
x is 10
Step-by-step explanation:
Steven is building a rectangular wooden frame for his mattress. If the mattress is 7 feet long by 6 feet wide, what is the
perimeter of the mattress?
OA. 42 feet
OB. 13 feet
OC. 21 feet
OD. 26 feet
Answer:
C| 21 feet is your answer .
Step-by-step explanation:
7×3=21 3×7=21
I I’m just going to quit brain lay because everyone here is just autistic
But if u steel wanna help me than it u can do these problems.
:/
Answer:
Read the part where it says; These raptors eat primarily flying insects, so they do most of their hunting on the wing.
Step-by-step explanation:
</3 PureBeauty
The table shows the numbers of pictures you upload to a social media website for 5 days in a row. How many total pictures do you upload during the week when 32% of the total pictures are uploaded on Saturday and Sunday?
Answer:
I think it's my choice. ;-)))
When x is a negative integer and y is a positive integer, the statement
below is always true. *
Please help with all three will give brainliest and $5
[tex]\frac{x}{y}[/tex]Answer:
Six would be your answer
Step-by-step explanation:
2y-9= y-2
-y -Y
y-9=-2
y=-2+9
y=6
To find the quotient of 4-5 multiply 4 by
A. 1/5
B. 1/4
C. 4
D. 5
Answer:
5
Step-by-step explanation:
when dividing number by fractions,we can simply multiply the number by the reciprocal of the decimal
so,4÷1/5=4 ×(reciprocal of 1/5 )
A reciprocal of a number is the same no.written under 1 aka.1divided by that number which simply is flipping
numerator and denominator .
reciprocal of 1/5 is 5/1 =5
so 4÷1/5 = 4×5
so answer is 5
hope this is helpful
Evaluate the function for
g (-2).
If g(x)= -6x+3, find g(-2).
Answer:
Step-by-step explanation:
21 bro
Answer:19
Step-by-step explanation:
helpppppppppppppppppp
Answer:
38 m²Step-by-step explanation:
Area of the trapezoid:
A = 1/2(b1 + b2)hA = 1/2(4 + 15)*4 = 38 m²Area of trapizoid:-
[tex]\blue{A=\dfrac{1}{2}(b_1 +b_2)×h }[/tex]
According to the question,
[tex]\bold{\dfrac{1}{2}×(4+15)×4 }[/tex]
[tex]\bold{\dfrac{1}{2}×(19)×4 }[/tex]
[tex]\bold{\dfrac{1}{\cancel{2}}×(19)×\cancel{4}}[/tex]
[tex]\bold{19×2 ~m^2 }[/tex]
[tex]\bold{ 38~m^2 }[/tex]
What is the factored form of the expression x2−4x ?
The factored form of the expression x² - 4x is,
⇒ x (x - 4)
We have to given that,
To find the factored form of the expression x² - 4x.
We can find the factored form as,
⇒ x² - 4x
Take x as common,
⇒ x (x - 4)
Therefore, The factored form of the expression x² - 4x is,
⇒ x (x - 4)
Learn more aboput the multiplication visit:
brainly.com/question/10873737
#SPJ6
How do I multiply decimals with whole numbers?
EX: 8.33x40=
Just like regular multiplication. Since 8.33 has two spaces after the decimal point, the answer would also have two spaces after the decimal point.
A manufacturing company has 1000 employees. 10% of the employees earn less than
Rs.500 per day, 200 earn between Rs.500 and Rs.999; 30% earn between Rs.1,000
and Rs.1,499; 250 employees earn between Rs.1,500 and 1,999 and rest earn Rs.2,000
and above. Calculate the suitable average wage. Give the reason for your choice of
average.
Answer:
heehhe
Step-by-step explanation:
vwhehehhehdhdhd
solve for x, x+25 70 degrees
Answer:
70-25=45
45+25=70
Step-by-step explanation:
Jordan invests £16200 into his bank account
He receives 2.5% per year simple interest.
How much will Jordan have after 5 years?
Give your answer to the nearest penny where appropriate
Answer:
18225
Use the formula: .
A = final amount
P = initial amount invested
r = annual interest rate
t = time (in years)
Insert all values in appropriate places.
Simplify.
A=16200(1+(0.025)(6))
Answer:
£18,225
Step-by-step explanation:
2.5% of £16,200 = £405
10% of £16,200 = £1,620
5% of £16,200 = £810
5 years: 16,200 + 5 x 405 = £18,225
Ben is 121212 years older than Ishaan. Ben and Ishaan first met two years ago. Three years ago, Ben was 444 times as old as Ishaan.
How old is Ben now?
Answer:
I think you may have this worded wrong Ben is 12 12 12 years older is it 12 years older and then four times older as?
Step-by-step explanation:
if so your answer is 7
Cat face 2 la puterea 81?
How much is 2 to the power of 81?
VA ROG ESTE SUPER URGENT!
PLEASE ITS SUPER URGENT!
Answer:
[tex]2.418 * 10^{24}[/tex]
Step-by-step explanation:
[tex]2^{81}[/tex] = [tex]2.418 * 10^{24}[/tex]
OR
Approximately:
2417851639000000000000000
JELPPPPP it’s due in 5 mins
The answer is 65
Step-by-step explanation:
all you had to do was divide
How to identify if the problem is a sample deviation problem or a population deviation problem?
Answer:
what?????????????????
An account has a principal of $500 and a
simple interest rate of 3.3%. How much interest
would be earned after 3 years?
Answer:
$49.50
Step-by-step explanation:
Simple interest formula => interest = principal x rate x time period
interest = 500 x .033 x 3 years
interest = 49.50
I hope this helps!
-TheBusinessMan
I need help on deltamath
Answer:
(-4,-5)
Step-by-step explanation:
(x,y)... always x-axis first and then y-axis
Find the area of the shaded region.
Answer:
42.14
Step-by-step explanation:
First find the area of the square:
14x14=196
Then find the area of the circle:
It has a diameter of 14 so divide it by 2 to get the radius.
Then use the formula πr²
7²=49
49x3.14=153.86
Then subtract
196-153.86=42.14
5(−2n + 4) + (n - 3)=