what is quadratic formula?
Answers
Answer:
The quadratic formula allows us to solve any quadratic equation that's in the form ax^2 + bx + c = 0.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Related Questions
Use the following cell phone airport data speeds (Mbps) from a particular network. Find P40
0.4
1.1
0.2
0.6
1.7
3.5
10.7
0.2
0.6
1.9
4.4
10.8
0.3
0.7
2.1
5.2
11.1
0.3
0.7
2.5
6.8
12.2
0.3
0.8
2.6
7.8
12.5
0.3
0.9
2.6
8.8
14.6
0.4
0.4
1.1
2.8
2.9
8.8
14.6
9.8
15.4
0.40
1.3
1.4
3.2
3.4
9.9
10.1
15.5
26.7
P40= ___ Mbps
Answers
The 40th percentile is (1.6 + 1.6) / 2 = 1.6
What is percentile ?
In statistics, a k th percentile is a score below which a given percentage k of scores in its frequency distribution falls or a score at or below which a given percentage falls.
The data are in ascending order.
Compute the position of the pth percentile (index i):
i = (p/100)*n
i = (40/100)*50
i = 20
The index i is an integer ⇒ the 40th percentile is the average of the values in the 19th and 20th positions (1.6 and 1.6 respectively).
Therefore, the 40th percentile is (1.6 + 1.6) / 2 = 1.6
P40=1.6 Mbps
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please help me asap
Answers
8. the lcd is 42 because it’s the smallest number that 6 and 7 are both factors of. the lcd is the bottom of the fraction
to make the denominator of (4/7) 42, we will multiply the top and bottom by 6 and we get (24/42)
to make the denominator of (3/6) 42, we will multiply the top and bottom by 7 and we get (21/42)
these two numbers now have the same denominator so we subtract them
24/42 - 21/42 = 3/42 which simplifies to 1/14
9. since these fractions already have a common denominator, we will make them mixed fractions
-5(2/7) as a mixed fraction. first multiply 5*7 which is 35. now add 2 which is 37. our mixed fraction is -37/7
-1(5/7) as a mixed fraction. multiple 1*7 which is 7. now add 5 which is 12. our mixed fraction is -12/7
now subtract (-37/7) - (12/7) and we get -49/7 which simplifies to -7
On the way to work Stan can drive his 60-mile commute in 1 hour. However, because of traffic, it takes 3 hours to get home. What is his average speed for the round trip?
A. 30 miles per hour
B. 20 miles per hour
C. 60 miles per hour
D. 40 miles per hour
Answers
Please help me solve this problem
Answers
Answer:
Answer is D.
Step-by-step explanation: When looking for distance, you want to find the sum of the *absolute value of 2 numbers* (or more). That is why you would want to add p and q.
Hope this helped. I'm really tired rn so sorry if this wasn't the best.
The function g(x) =f(x-6) is a transformation of the parent function, f(x) = x which of the following correctly describes the transformation
A the graph is translated 6 units left
B the graph is translated 6 units right
C the graph is translated 6 units up
D the graph is translated 6 units down
Answers
Answer:
A, I belive
Step-by-step explanation:
A cylinder has a base diameter of 20 meters and a height of 5 meters. What is its
volume in cubic meters, to the nearest tenths place?
Answers
Volume = PI x r^2 x h
r -s 1/2 the diameter ( 20/2 = 10)
Volume = 3.14 x 10^2 x 5
Volume = 3.14 x 100 x 5
Volume = 3.14 x 500
Volume = 1570 cubic meters
The answer is 1570.8
the difference between eight and twice a number x is four
Answers
Answer:
[tex]x=2[/tex]
Step-by-step explanation:
[tex]Let\ the\ number\ be\ x\\Hence,\\8-2x=4\\-2x=4-8\\-2x=-4\\x=\frac{-4}{-2} \\x=\frac{4}{2} \\x=2[/tex]
Answer:
Yes
Step-by-step explanation:
2 x 4 = 8
8 / 4 = 2
40) Jose and Eugene each improved their yards by planting rose bushes and geraniums. They bought their supplies from the same store. Jose spent $70 on 7 rose bushes and 4 geraniums. Eugene spent $50 on 6 rose bushes and 2 geraniums. Find the cost of one rose bush and the cost of one geranium
A) rose bush: $7, geranium: $9
B) rose bush: $6, geranium: $7
C) rose bush: $7, geranium: $5
D) rose bush: $8, geranium: $11
Answers
Answer:
I need points bro
Step-by-step explanation:
Answer: B) rose bush: $6, geranium $7
Step-by-step explanation:
Jose spent $70 on 7 rose bushes and 4 geraniums.
( 7 x $6 = $42 ) ( 4 x $7 = $28 )
$42+$28= $70
Eugene spent $50 on 6 rose bushes and 2 geraniums.
( 6 x $6 = $36 ) ( 2 x $7 = $14 )
36+14 =50
This is hard and long. Good Luck.
Answers
There are three pairs of faces with surface areas of 75.3 square inches, 111.384 square inches and 35.818 square inches.
The surface area of the six faces of the parallelepiped is equal to 444.956 square inches.
The real surface area is between 214.9 square inches and 668.3 square inches.
The mistaken surface area found by Jayden is 443 square inches.
How to determine the surface area of a right angled parallelepiped
In this problem we find a right angled parallelepiped whose dimensions are known. The surface area of the parallelepiped is the sum of the areas of the six faces. There are three pairs of faces with the following dimensions:
Pair 1
A' = (4.92 in) · (15.3 in)
A' = 75.276 in²
Pair 2
A'' = (15.3 in) · (7.28 in)
A'' = 111.384 in²
Pair 3
A''' = (4.92 in) · (7.28 in)
A''' = 35.818 in²
There are three pairs of faces with surface areas of 75.3 square inches, 111.384 square inches and 35.818 square inches.
The surface area of the six faces of the parallelepiped is equal to 444.956 square inches.
The range of measures for the area of the parallelepiped is represented by the following inequality:
6 · 35.818 in² < 444.956 in² < 6 · 111.384 in²
214.908 in² < 444.956 in² < 668.304 in²
The real surface area is between 214.9 square inches and 668.3 square inches.
Lastly, the mistaken surface area found by Jayden is:
A = 2 · (4.92 in) · (15.1 in) + 2 · (111.384 in²) + 2 · (35.818 in²)
A = 442.988 in²
The mistaken surface area found by Jayden is 443 square inches.
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Please help algebra work needs to be shown please help
Answers
Answer: 1) x=6.92 or rounded: 6.9
take a look at the image
Anna wants to purchase advertising space in the school newspaper. Each square inch of advertisement space sells for $3.00. She wants to purchase a rectangular space with length and width in the ratio 3:2 and she has up to $50.00 to spend. What are the dimensions of the largest advertisement she can afford to purchase?
(please explain how you got the answer and show me some work!!)
Answers
Answer:
The largest advertisement she can afford has dimensions of 5 in x 10/3 in
Step-by-step explanation:
Assume the dimensions of the advertisement are L and W.
The area of the advertisement is:
A = L.W
The ratio length/width is 3:2, thus the proportion is:
[tex]\displaystyle \frac{L}{W}=\frac{3}{2}[/tex]
Thus:
[tex]\displaystyle L=\frac{3}{2}W[/tex]
The area is:
[tex]\displaystyle A=\frac{3}{2}W^2[/tex]
Since the square inch of advertisement space sells for $3, the cost for Anna to purchase it is:
[tex]\displaystyle C=3\cdot\frac{3}{2}W^2[/tex]
Simplifying:
[tex]\displaystyle C=\frac{9}{2}W^2[/tex]
This cost can be a maximum of $50, thus:
[tex]\displaystyle \frac{9}{2}W^2=50[/tex]
Multiplying by 2:
[tex]9W^2=100[/tex]
Solving for W:
[tex]\displaystyle W=\sqrt{\frac{100}{9}}=\frac{10}{3}[/tex]
[tex]\displaystyle W=\frac{10}{3}[/tex]
And
[tex]\displaystyle L=\frac{3}{2}\cdot \frac{10}{3}[/tex]
L = 5
Thus the largest advertisement she can afford has dimensions of 5 in x 10/3 in
Find the slope of the line y=1/3x+3/2
Answers
Answer:
1/3
Step-by-step explanation:
The slope is 1/3
Answer:
slope:1/3
y intercept(just an extra!):(0,-3)
Step-by-step explanation:
Hope I could help! Stay safe and drink water<3
Las ecuaciones con numeros racionales se resuelven de manera similar a las ecuaciones con numeros enteros
Answers
Answer:
es verdadero
Step-by-step explanation:
Water freezes at 0 degrees Celsius, which is the same as 32 degrees Fahrenheit. Also water boils at 100 degrees Celsius, which is the same as 212 degrees Fahrenheit. (Use fractions in your answers.)
(a) Use the freezing and boiling points of water to find a formula expressing Celsius temperature C as a linear function of the Fahrenheit temperature F.
I saw the same question but it kept saying the answers were wrong, so
Answers
The required equation which represents the expression of Celsius temperature as a linear function of the Fahrenheit temperature is; C = (9/5)F - 57.6.
What is the linear equation expressing the Celsius temperature in terms of the Fahrenheit?It follows from the task content that the linear equation which relates both the Celsius and Fahrenheit temperature is to be determined.
On this note, the two points which can be inferred to describe the linear relationship are;
(32, 0) and (212, 100)
Hence, the slope of the linear equation;
m = (C2 - C1)/(F2 - F1)
m = (212 - 32)/(100 - 0)
m = 180/100
m = 9/5
Hence, from the point-slope equation form; (y-y1) = m (x -x1).
We have; (C - 0) = (9/5) (F - 32)
C = (9/5)F - 57.6
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10 POINTS Solve for x:
7-2x=9x+19
A.x = 11/12
B.x = -12/11
C.x = 1
Answers
Answer:
Answer is "B"
Step-by-step explanation:
Rearrange terms: 7-2x=9x+19
-2x+7=9x+19
Subtract 7 from both sides of the equation: -2x+7=9x+19
-2x+7-7=9x+19-7
Simplify: -2x=9x+12
Subtract 9x from both sides: -2x=9x+12
-2x-9x=9x+12-9x
simplifiy: -11x=12
solution: x=-12/11
determine the domain of the following graph
Answers
Answer:
Domain: -3 ≤ x ≤ 9
Step-by-step explanation:
The domain of the graph is the set of all possible x-values.
The set of all possible values as represented on the graph above runs from -3 to 9.
This, domain of the graph is -3 ≤ x ≤ 9
Is TA congruent to GO? Proof?
Answers
Answer:
Yeah
Step-by-step explanation:
XZ is the perpendicular bisector of segment WY. Solve for k. Enter a NUMBER only.
Answers
Considering that XZ is the perpendicular bisector of segment WY, we have that the value of k is of k = 6.
What is the effect of XZ being the perpendicular bisector of segment WY?It means that XZ divides the segment into two segments of equal length, given by:
WX = XY.
From the lengths given, we can solve for k as follows:
3k + 17 = 7k - 7
4k = 24.
k = 24/4
k = 6.
The value of k is of k = 6.
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PLEASE answer i’m begging you
Answers
Answer:
C.
Step-by-step explanation:
The amount of money she has at the beginning of the week.
Gas mileage is the number of miles you can drive on a a gallon of gasoline.
A test of a new car results in 580 miles on 10 gallons of gas. How far could
you drive on 55 gallons of gas? What is the car's gas mileage?
Answers
Answer:
on 55 gallons of gas , you can drive 3,190 miles....the cars gas mileage 58 mpg or miles per gallon
What is the value of x?
–2x – x + 3 = –12
Answers
Answer:
x = 5
Step-by-step explanation:
-2 -1(coeffcient of -x) = -3
-3x +3 =-12
subtract 3 (the constant) from both sides
cancelling it on the left and leaving -3x = -15
divide each side by -3 leaving x and 5
x = 5
URGENT
Factor.
4m² - 52m + 88
Answers
Answer:
[tex]4(m - 11)(m - 2)[/tex]
Step-by-step explanation:
[tex]4 {m}^{2} - 52m + 88[/tex]
[tex] = > 4( {m}^{2} - 13m + 22)[/tex]
[tex] = > 4( {m}^{2} - 11m - 2m + 22)[/tex]
[tex] = > 4(m(m - 11) - 2(m - 11))[/tex]
[tex] = > 4(m - 11)(m - 2)[/tex]
Evaluate each combination.
The general manager of a fast food restaurant chain must select 6 restaurants from 11
for a promotional program. How many different ways can this be done?
O 332,640
O 462
O 66
O 720
Answers
There are 462 different ways can be done for a promotional program.
Combinations are the way of selecting the objects or numbers from a group of objects or collection, in such a way that the order of the objects does not matter.
Selection of menu, food, clothes, subjects, the team are examples of combinations.
The formula for combinations is: nCr = n!/[r! (n-r)!]
nCr represents the number of combinations from “n” objects taken “r” at a time.
given that
select 6 restaurants from 11.
nCr = n!/[r! (n-r)!]
we are looking at a Combination of 11 things takes 6 at a time, or 11C6
11C6=11!/(6!5!)
11C6=11×10×9×8×7 / 5×4×3×2×1.
11C6=55440 / 120
11C6=462
Thus, there are 462 different ways in which the manager can choose 6 restaurants at a time out of 11.
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You go to a Chicago Bears game. You spend a total of $72 buying brats "b" and hotdogs "h" for your group. You paid $6 per brat and $4 per hotdog. You bought a total of 14 brats and hotdogs. How many of each did you buy?
Answers
In the figure below, ABD measures 41. What is the measure of ABC?
Answers
Answer:
The answer is 82 degrees.
The equation 20 + 5x = y represents the amount of money in a bank
account, y, after x weeks of deposits. Which equation represents the
same equation, solved for x
Answers
Answer:
B
Step-by-step explanation:
22,064÷394 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
Answers
Answer:
hello my fellow brainlier
Step-by-step explanation:
According to my calculations answer will be 56 .TY!
help please and hurry!
Answers
What would be the result if a was increased by 25 percent
Answers
Answer: formula - (x/4)+x
Step-by-step explanation:
Since there are no numbers, here is just the formula and what it means :)
(x/4)+x
(btw x is whatever your number is)
so what you need to do first is to divide your number by 4 because 25% is 1/4 of 100%
and then add that number that you just got to your number.
Its a little confusing to say out in words, so here is an example using 24
24/4=6
24+6=30
and heres another example using 50
50/4=12.5
50+12.5=62.5
I hope this helped! <3
I need help ASAP
Mateo earns a yearly salary of 40,000. Rico earns a yearly salary of 51,000. Mateo will receive a salary increase of 3,500 per year, and Rico will receive a salary increase of 2,800 per year
Which equation can be used to find n, the number of years it will take Mateo to earn the same salary as Rico?
A: 40,000+3,500n=51,000+ 2,800
B: 40,000+3,500n=51,000n+ 2,800n
C: 40,000n+3,500=51,000n+ 2,800
D: 40,000+3,500n=51,000n+ 2,800