Basically, in a function, you draw a vertical line. If that vertical line crosses the function more than once, then it is an invalid function.
Let me know if you need an example and I'll edit a picture in for you.
Answer:
A vertical line test is used to find out whether if a curve is a graph of a function or not. If you are able to draw a vertical line, and it intersects more than one point on the curve, then it is not a function.
Step-by-step explanation:
Anyone know???????????
Answer:
I cant help I wish I could but its a test
Step-by-step explanation:
find the zeros of the function by factoring.
3x^2+10x=8
Answer:
x = -4, 2/3
General Formulas and Concepts:
Algebra I
Standard Form: ax² + bx + c = 0FactoringStep-by-step explanation:
Step 1: Define
3x² + 10x = 8
Step 2: Find Zeros
Rewrite in SF: 3x² + 10x - 8 = 0Factor: (x + 4)(3x - 2) = 0Solve for x: x = -4, 2/3A cylindrical tank with radius 3m is being filled with water at a rate 4m^³/min.How fast is the height of the water increasin?
Given :
A cylindrical tank with radius 3m is being filled with water at a rate 4m³/min.
To Find :
How fast is the height of the water increasing.
Solution :
We know, volume of cylinder is given by :
[tex]V = \pi r^2h[/tex] ....1)
Also, we have given that, [tex]\dfrac{dV}{dt} = 4 \ m^3/min[/tex] .
Differentiating equation 1) w.r.t t we get :
[tex]\dfrac{dV}{dt} =3^2 \pi \dfrac{ dh }{dt}\\\\\dfrac{dh}{dt} = \dfrac{4}{3^2 \times \pi}\\\\\dfrac{dh}{dt} = 0.141 \ m/min[/tex]
Therefore, the height of water is increasing at a rate of 0.141 m/min.
Can somebody help me with the last 2. Will mark brainliest.
momom pur $550 into a savings account for one year. The
rate of interest on the account mos 61% How much was
doilers and cents (Round to the
The nearest cent)
Step-by-step explanation:
you have to divide first then you round
(-10x^2-1)+(-8x^2+8x-8) (−10x 2 −1)+(−8x 2 +8x−8)
Answer:
804−803+702−1
Step-by-step explanation:
Compare A and B if 125% of A is equal to $120 and 135% of B is equal to $90
PLS HELP
The original value of A is greater than original value of B.
The given parameters:
125% of A = $120135% of B = $90What is percentage of a number?The percentage of a number is fraction of the number expressed in hundred.The original value of A is calculated as follows;
[tex]\frac{125}{100} \times A = 120\\\\1.25A = 120\\\\A =\frac{120}{1.25} \\\\A = \$ 96[/tex]
The original value of B is calculated as follows;
[tex]\frac{135}{100} \times B = 90\\\\1.35 B = 90\\\\B = \frac{90}{1.35} \\\\B = \$ 66.67[/tex]
Thus, the original value of A is greater than original value of B.
Learn more about percentages here: https://brainly.com/question/24304697
i got work due in 6 mins pls help me ill give brainliest 5 stars and thank you
Answer: ↓↓↓
Step-by-step explanation:
a. 8 + x + 2
Combine like terms
x + 10 or 10 + x
b. 14 + y - 6
Combine like terms
8 + y or y + 8
c. 7 - n + 10
Combine like terms
17 - n or -n + 17
Four siblings buy a gift for their father on his birthday. Each sibling contributes (pays) the same amount of money towards the gift.
The gift ends up coming to $63 and after paying for the gift, there is some money left over which the siblings equally split.
Write an expression to represent the amount of money each sibling will get back after the gift is paid for. Use x to represent the amount of money paid by each sibling.
If each sibling contributed $18 towards the gift, how much money did each sibling get back?
tip: they have paid a total of 40 dollars, so subtract what they bought, which should be 3 times each of the items added together.
Answer:
63÷4=$15.75(each sibling gave which made it up to $63)
63-40=$23(amount added together-amount paid)
$23÷4=$5.75(each sibling got back)
63-5.75x
if each contributed $18:
18×4=$72(each contribute 18 dollars so multiply by 4 because 4 siblings)
72-40=32(minus 40 from amount they contributed)
32÷4=$8(divide by 4 to see what each sibling got)
Each sibling got back $8
Answer:
23.75
Step-by-step explanation:
its c 4.75x5
The measure of an exterior angle of a regular polygon is given below. Find the measure of an interior angle. Then find the number of sides. 20
Answer:
Internal angle = [tex]160^\circ[/tex]
Number of sides = 18
Step-by-step explanation:
Given that:
We have a regular polygon with number of sides unknown.
Measure of an exterior angle of the polygon = [tex]20^\circ[/tex]
To find:
Measure of an interior angle and the number of sides of the polygon?
Solution:
Let us have a look at the relation of sum of external angles.
Sum of one internal angle and its corresponding external angle = [tex]180^\circ[/tex]
Internal angle + external angle = [tex]180^\circ[/tex]
Internal angle = [tex]180^\circ[/tex] - [tex]20^\circ[/tex] = [tex]160^\circ[/tex]
Sum of all the external of a regular polygon = [tex]360^\circ[/tex]
All the external angles will be equal because it is a regular polygon.
Let the number of sides = [tex]n[/tex]
Therefore,
[tex]n \times 20^\circ = 360^\circ\\\Rightarrow n = 18[/tex]
Therefore, the answers are:
Internal angle = [tex]160^\circ[/tex]
Number of sides = 18
Two identical sets of data are shown below.
Data Set 1: 58, 59, 62, 64, 67, 67
Data Set 1: 58, 59, 62, 64, 67, 67
An outlier is added to Data Set 2. Which of the following statistics must be greater in Data Set 2 when compared to Data Set 1 now that the outlier has been added? Select TWO that apply
mean
standard deviation
mode
median
range
Answer:
Standard deviation RangeStep-by-step explanation:
Two identical sets of data are:
Data Set 1: 58, 59, 62, 64, 67, 67 Data Set 2: 58, 59, 62, 64, 67, 67An outlier is added to Data Set 2. This is the number that is either smaller than 58 or greater than 67.
Mean
No, it could be greater or smallerStandard deviation
Yes, it will increase with an outlier added because the difference between the added number and the mean will be the greatest.Mode
No, it could be greater or smallerMedian
No, it could be greater or smallerRange
Yes, it will increase as either lower or the higher value will be added to the data set.Un comerciante compro un lote de 15 calculadoras a 40 dolares cada una .Vendio 5 de ellas ,a orecio de promoción por100 dolares .Calcula el precio de venta de cada una de las restantes calculadoras para que gane 150 en la operación
The selling price of each of the remaining calculators should be $65 so that the merchant makes a profit of $150 in the entire operation.
The merchant bought a batch of 15 calculators at $40 each, so the total cost of the batch is:
Cost price = 15 calculators × $40/calculator
= $600
The merchant sold 5 calculators at a promotional price of $100 each.
So, the revenue from selling these 5 calculators is:
Revenue = 5 calculators × $100/calculator
= $500
Now, we need to calculate the profit made from the sale of these 5 calculators:
Profit = Revenue - Cost price
Profit = $500 - $600
= -$100 (Negative because the merchant incurred a loss on these 5 calculators)
The merchant wants to make a profit of $150 in the entire operation. So, adding the profit from selling the first 5 calculators:
Desired profit = $150
Current profit = -$100
Additional profit needed = Desired profit - Current profit
Additional profit needed = $150 - (-$100)
= $250
The merchant has 15 - 5 = 10 calculators left to sell.
We need to distribute the additional profit of $250 among the remaining 10 calculators:
Additional profit per calculator = Additional profit needed / Number of remaining calculators
Additional profit per calculator = $250 / 10 calculators
= $25
Now, let's calculate the selling price of each of the remaining calculators:
Selling price = Cost price + Additional profit per calculator
Selling price = $40 + $25 = $65
So, the selling price of each of the remaining calculators should be $65.
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Complete question:
A merchant bought a batch of 15 calculators at 40 dollars each. He sold 5 of them at a promotional price of 100 dollars each. Calculate the selling price of each of the remaining calculators so that he makes a profit of 150 dollars in the operation
I need help quick I’ll give extra point to who ever answers
Answer:
1 = c
2 = b
3 = d
4 = d
5 = a
Step-by-step explanation:
1) 3x-4>17
2) 3x-4<17
3) 3x-4<=17
4) 3x-4<=17
5) 3x-4>=17
Answer:
Step-by-step explanation:
You scred a 95% on your math quiz. The quiz was out of 60 points. How many points did you get?
Answer: You got 57 points out of 60.
Step-by-step explanation: Hope this helps :)
3+p=8 what’s does p equal
Answer:
p=5
Step-by-step explanation:
Match each algebraic expression to the correct simplified expression.
x
X
10n- 3m
(11n - 3m) - n
X
8x + 5y
3m - (3n + 10m)
3x - 7y - (-2x) - Y
-7m - 31
[10y - (-9x)] - (5y + x)
X
5x - 8y
Plss help
Answer:
!
Step-by-step explanation:
What best describes the pair of angles below?
Answer:
i want to see the choices
Can someone help me with this: Write a word phrase that equals the equation x + 7x = 1200.
Answer:
A number plus seven times itself equals 1200.
Step-by-step explanation:
The number is "x", and 7 times itself is 7 "x". When one adds the two, they get 1200. Hence it models the situation;
x + 7x = 1200.
Answer:
Step-by-step explanation:
marc has x amount of money. His mom offers to give him seven times his money as a Christmas gift. when he combined, his starting money and what his mom gives him, it added up to $1200. What was marc’s starting money (x)
Graph the line that passes through the points (6, 8) and (2, -2)and determine the equation of the line.
Answer:
y = 2.5x – 7
or
5/2x- -7
i need help i will mark brainliest
Answer:
-2?
Step-by-step explanation:
Multiply -1 by -4 to get 4
subtract 20 from 12 to get -8
[tex]\frac{-8}{4}[/tex] simplify to get -2
In a right triangle, the measure of one angle is twenty more than four times a number. The other angle is three times a number. What is the measure of the angles in degrees?
What is the median of this group of numbers?
40, 40, 50, 50, 60, 80, 80, 80
Answer:
65
Step-by-step explanation:
Answer:
Step-by-step explanation:
given:
40, 40, 50, 50, 60, 80, 80, 80
There are 8 numbers in the data set. To split this data set down the middle, that is between 50 and 60:
40, 40, 50, 50 || 60, 80, 80, 80
So now to get the median you have to do the following/
(50+60)/2 which equals 55.
Median is 55.
Consider angle θ in Quadrant I, where cosθ = 513 . What is the value of sinθ?
Answer:
12/13
Step-by-step explanation:
According to SOH CAH TOA;
cos theta = adjacent/hyp = 5/13
adj = 5
hyp = 13
Get the opposite
opp = √13²-5²
opp = √169-25
opp = √144
opp = 12
Get sin theta
sin theta = opposite/hyp
sin theta = 12/13
Hence the value of sin theta is 12/13
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPP meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
A repair technician replaces cracked screens on phones. He can replace 5 screens in 3 hours. ( Let s represent the screens and h represent the time)
1. Write an equation you can use to represent the above situation.
2. Use your equations to determine how long it would take to replace 34 screens.
Answer: 1. s*h 2. 20.4 hours
Step-by-step explanation: 1. s*h
2. 20.4 hours hope this helps.
A web designer is placing images on a website using polar coordinates along the lines shown in the diagram. Assume that the intersection of the lines is the pole and the right horizontal segment is the polar axis.
Which equations represent the lines on which the designer places the images? Check all that apply.
Answer: 1st, 3rd, and 5th
Step-by-step explanation: Big trust
Answer:
1st, 3rd, 5th
Step-by-step explanation:
just did it on edge and got it right
PLEASE MARK ME BRAINLIEST
2) Write down the slope of the line.
a) Joining P(1,1) Q(2,3).
b) parallel to the line joining A(-1,5) & B(-6,-7).
c) perpendicular to the line joining B(2,-3) & S(-4,1)
Answer:
(a) m =(y2-y1)/(x2-x1)
m=(3-1)/(2-1)
m=2
The length of a rectangle is 5 yd less than twice the width, and the area of the rectangle is 52 yd^2. Find the dimensions of the rectangle.
Answer:
the length is 8 and the width is 6.5
Step-by-step explanation:
6.5 x 2 = 13 - 5 = 8 x 6 = 52
The Calculator can confirm.
What value could you write in after 3x that would make the equation true for all values of x?
3x+12 = 3x+
Answer:
12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
Identity property/ Associative Property
please please please help
Answer:
Equation 1: 15+7h
Equation 2: 10h
Sorry can't graph for you
Step-by-step explanation:
what is the value of x ?
Answer:
6
Step-by-step explanation: