Answer:
A quadratic equation is some thing like
(x+2)^2
or
(x+2)(x+5)
In order to solve them, the most basic method is the FOIL method
F-First
O-Outside
I-Inner
L-Last
So for example
(x+2)^2
Which is basically
(x+2)(x+2)
So the first is the 2 Xs
(x+2)(x+2)
x*x=x^2
The outer is the x and the 2,
(x+2)(x+2)
2*x=2x
Now the Inner which is the 2 and the x
(x+2)(x+2)
2*x=2x
And finally the last which is the 2 and the second 2
(x+2)(x+2)
2*2=4
Now add them all up
X^2+2x+2x+4
Combine like terms
x^2+4x+4
There you have it
Do the same with every other quadratic equation
Make an equation for the area of each rectangle.Solve it to find the value of x. Area=70cm^2 l=(2x+8)cm b=5cm
Answer:
I gc bj jiu I'll vuhv jo b DDT UK k
what is the slope of the line that passes through the point (-1,-10) and (-1,-2). answer needs to be in simplest form
Answer: m = undefined
Step-by-step explanation:
-2-(-10) = 8
-1-(-1) = 0
m = 8/0
Which is an undefined slope
Answer:
The slope is undefined
Step-by-step explanation:
Plug in the points to the formula for slope (Formula Found Below). You would get (-2 + 10)/(-1 + 1), which simplifies to 8/0. Anything divided by 0 is undefined, which means that the slope is undefined.
Furthermore, you could also tell this simply by the points given. If two points on a line have the same x - coordinate, it means that the slope is undefined and that the line formed by the points isn't a function.
Formula for Slope:
[tex]\frac{y1 - y2}{x1 - x2}[/tex]
Usable with 2 points of the line given ((x1, y1) and (x2, y2))
The radio station usually plays 116,800 songs in a year. Last year there was a 16% decrease in the number of songs played. What was the amount of songs played on the radio station last year?
Answer:
Number of songs played last year = 98,112 songs
Step-by-step explanation:
Given:
Number of songs played = 116,800
Decrees songs = 16% = 0.16
Find:
Number of songs played last year
Computation:
Number of songs played last year = Number of songs played[1-Decrees songs]
Number of songs played last year = 116,800[1-0.16]
Number of songs played last year = 98,112 songs
Describe how you could use algebraic operations to solve the equation 1 = -3x + 4
Answer:
x=1
Step-by-step explanation:
3x=4-1
3x=3
x=1
B
D
A
C
side AC is extended to point D with m
Answer:
im so confused
Step-by-step explanation:
Find the slope given the two points below:
(-8, — 11), (-1, 17)
Answer:
Slope: 4
Step-by-step explanation:
Answer: The slope is 4
Step-by-step explanation:
Slope formula:
[tex]m = \frac{y_{2}-y_{1} }{x_{2}- x_{1} }[/tex]
[tex]m = \frac{17 - (-11) }{-1 -(-8) }[/tex]
[tex]m = \frac{17 +11 }{-1 +8}[/tex]
[tex]m = \frac{28 }{7}=m = \frac{4}{1}=m =4[/tex]
m = 4
The slope is 4
WILL GIVE BRAINLIEST!!!!!!!!!!
A sandcastle can be modeled with four 6-inch-tall square prisms, one on top of the other, as shown in the figure below.
The base of the bottom prism has a side length of 30 inches, and the base of each of the other three prisms has a side length 7 inches less than the side length of the base of the prism below it. What is the volume of the sand castle?
Answer:
A 2808
Step-by-step explanation:
From top to bottom
The top one is 9
Second layer is 16
Third is 23
Bottom is 30
I did 9 x 6, 16 x 6, 23 x 6, 30 x 6 = 54, 96, 138, 180
Added all of them up and got 468 then I times it by 6 and got 2808
Heyo! ;D
The volume of the sandcastle above is 10,596 cubic inches.
Hope this helped! If so, please lmk! Tysm and good luck!
Write a coordinate proof given quadrilateral ABCD with vertices A (3, 2), B (8, 2), C (5, 0), and D (0, 0).
Plot the point and graph the quadrilateral.
Answer:
Step-by-step explanation:
Hhahahahahahahahhahahahahahaha
Sorry if you can’t read it but u wasn’t paying attention in online class and I missed this out and soz if it’s blurry! 95 point in return
Answer:
the answer is at the bottom
Step-by-step explanation:
please mark me as brainliest<3
answer is attatched
my feet are asleep,,,.T.T, I'm also stressed and cold and tired
Answer:
Ok its friday be happy
Step-by-step explanation:
find the amplitude.
f(x)=2.3cos(4x)
Answer:
As cosine returns a value between -1 and 1, the amplitude will simply be the coefficient of the cosine function. In this case it's 2.3, which tells us that the amplitude is also 2.3
Sandra has a checking account at Wells Fargo Bank. During the month of May, she made deposits totaling $2,458.52 and wrote checks totaling $789.23. He paid a maintenance fee of $25 and earned $3.24 in interest. Her balance at the end of the month was $4,492.76. What was the balance at the beginning of May.
50 POINTS!!!!
Some girl that I know really likes this guy and he told her he likes her and she wants to ask him out but she is afraid what should she do
Answer:
I would say ask him out, if not she'll continue to wonder if he was ever going to be a great relationship or just a short relationship. it's also a good way to experience dating!
Step-by-step explanation:
hope this HELPS her out!
✧◝(⁰▿⁰)◜✧
Please help me guys ill mark you as a brilliant
Answer:
so the answer is ,,5". hope this helped! Have a nice day.
Step-by-step explanation:
45:9=5
Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answer:
DJ = 48
Step-by-step explanation:
In triangle CDE, point J is the centroid.
Length of median DH = 72
By the property of the centroid of a triangle,
"Centroid of a triangle divides the medians in the ratio of 2 : 1"
By this property, length of DJ = [tex]\frac{2}{(2+1)}(DH)[/tex]
= [tex]\frac{2}{3}(72)[/tex]
= 48 units
Therefore, length of DJ = 48 units
-1/4n - n= -5/6
What does n equal, Please I need this done very quickly!!
Answer:
n = 2/3
Step-by-step explanation:
Can someone help me out with this
Answer:
b 6"
Step-by-step explanation:
because l is 3" and H" is the same so it is b
Help me with this pls
Answer:
Is there any more information about the question?
Step-by-step explanation:
Write an equation in slope-intercept form thats perpendicular to the given line and goes thru the point.
1. y=-3x + 4 (6,-2)
2. -2x -8y = 16 (4,5)
3.. x+y= 2 (8,5)
(PLS HELP ME I NEED THE ANSWER RIGHT NOW ITS URGENT)
Answer:
steps below
Step-by-step explanation:
1. y=-3x + 4 (6,-2)
y' slope: 1/3 (perpendicular)
y' = mx + b
b = y' - mx = -2 - (1/3) x 6 = -4
equation: y' = 1/3 x - 4
2. -2x -8y = 16 (4,5)
8y = -2x - 16 y = -1/4 x - 2
perpendicular line slope: 4
b = y - mx = 5 - 4 x 4 = - 11
equation: y = 4x - 11
3. x+y= 2 (8,5)
y = -x + 2 slope: -1
perpendicular slope: 1
b = y - mx = 5 - 1 x 8 = -3
equation: y = x -3
The perimeter of a rectangle is 24 inches. If the length of
the rectangle is less than the width of the
rectangle, which of the following best illustrates the
domain for the length of this rectangle?
20 points
Answer:
C
Step-by-step explanation:
its more than likely to be C
amir rented a dvd and it was due to be returned on 28 march he actually returned it to the shop on 16 april the rental shop applies 7p for everyday the dvd is overdue. Work out the total fine paid by amir give your answer in £
Answer:
£133
Step-by-step explanation:
March had 31 days
Extra days used in March = March 31 - March 28
= 3 days
Extra days used in April = 16 days
Total extra days used = Extra days used in March + Extra days used in April
= 3 days + 16 days
= 19 days
Cost per extra days = £7
Total fine for 19 extra days = £7 × 19
= £133
Total fine paid = £133
The total fine paid by amir should be £133.
The calculation is as follows:March had 31 days
Extra days used in March should be
= March 31 - March 28
= 3 days
Now
Extra days used in April = 16 days
And,
Total extra days used = Extra days used in March + Extra days used in April
= 3 days + 16 days
= 19 days
Cost per extra days = £7
Total fine for 19 extra days = £7 × 19
= £133
Learn more: brainly.com/question/16911495
The value of sales at the shop decreases from 145,000 a year to 129,000 find the percentage decrease in the value of sales
Answer:
11.0344828%
Step-by-step explanation:
145000 - 129000 = 16000.
16000/145000 = 16/145 = 0.110344828
Therefore there was a 11.0344828% decrease
Answer:
11.03% that is the percentage decrease
Keiko drank 18 fluid ounces of juice. How much is this in cups?
Answer:
2 1/4
Step-by-step explanation:
18 fl oz= 2 1/4 or 2.25 cups
f(x) = x² +1
g(x) = 3x + 1
Find (f ºg)(x)
Someone please help!!!!
Answer:
f*g(x) = (x²+1) (3x+1) = 3x³+x²+3x+1
Step-by-step explanation:
f*g(x) = f(x) * g(x)
f*g(x) = (x²+1) (3x+1) = 3x³+x²+3x+1
write the equation of the line shown in the graph in slope intercept form
Answer:
y= 4x +3
Step-by-step explanation:
slope= rise over run
y-intercept = where the line hits the y axis
In the diagram, the length of segment QV is 15 units.
Line m is a perpendicular bisector of line segment S Q. It intersects line segment S Q at point R. Line m also contains points T and V. Line segment T S is 3 x + 2. Line segment S V is 4 x minus 1.
What is the length of segment TQ?
Answer:
TQ=14
Step-by-step explanation:
Given:
QV=15
Since the figure is a kite because SR=QR and TV is perpendicular to SQ:
SV=QV and ST=TQ
so:
4x-1=15
x=4
ST=3x+2=14
TQ=14
Express "17 billion" in scientific
notation.
Answer:
The scientific notation is [tex]1.7\times 10^{10}[/tex].
Step-by-step explanation:
Consider the provided information.
We need to express 17 billion in scientific notation.
17 billion is: 17,000,000,000
We split the given number into a coefficient and a power of 10.
Move the decimal point of the given number till the coefficient of the given number is greater than 1 and less than 10 and write the power of 10 equal to the number of steps the decimal point was moved.
17 billion in scientific notation = [tex]1.7\times 10^{10}[/tex].
Hence, the required answer is [tex]1.7\times 10^{10}[/tex].
Triangles similar to the same triangle are ______ to each other.
A) congruent
B) similar
C) close
D) parallel
Answer:
b. similar because they are said to be similar if their corresponding angles are congruent and the corresponding sizes are in proportion.
In a parallelogram ABCD with diagonal AC, a student has used the Alternate Interior Angles Theorem to show that angle DAC is congruent to angle BCA and that angle BAC is congruent to DCA.
Which of the following can be used to prove the triangles congruent by ASA? (4 points)
TB ≅ TD
DB ≅ DB
AC ≅ DB
AC ≅ AC
Answer:
AC ≅ AC
Step-by-step explanation:
A S A ---> Angle Side Angle
∠DAC ≅∠ BCA {Alternate interior angle}
AC ≅ AC {Reflexive property}
∠DCA ≅∠BAC {Alternate interior angle}
The book shelf was bought at a wholesale price of \$147.00$147.00dollar sign, 147, point, 00, and Gabriela's Furniture Store marks up all furniture by 60\%60%60, percent. At what price should the manager sell the book shelf?
Answer:
$235.20
Step-by-step explanation:
Calculation for At what price should the manager sell the book shelf
First step is to calculate the price increase using this formula
Price increase=Marks up percentage*Wholesale price
Let plug in the formula
Price increase=60%*$147.00
Price increase=$88.20
Now let calculate the price that the manager should sell the book shelf using this formula
Book shelf Price=Wholesale price+Price increase
Let plug in the formula
Book shelf Price=$147.00+$88.20
Book shelf Price=$235.20
Therefore the price that the manager should sell the book shelf is $235.20