a) What are the key aspects of any parabola? What do the key aspects tell you about the graph
Answers
Answer:
Vertex of parabola
Step-by-step explanation:
The red dot shows the extreme of parabola that is known as vertex.
Related Questions
Given a linear function y =23x+2, which two points make the line?
(0, -2) and (3, 4)
(0, 2) and (3, 4)
(0, 0) and (2, 3)
(2, 3) and (0, 0)
Answers
Answer:
(0, 2) and (3, 4)
Step-by-step explanation:
The equation is in slope-intercept form:
y = mx +b . . . . . a line with slope m and y-intercept b
So, you know immediately that the y-intercept is (0, 2). This matches only one answer choice.
(0, 2) and (3, 4)
What's 0.11 as a fraction?
Answers
Answer:
11/100
Step-by-step explanation:
I need help asap :&/$/$/
Answers
Answer:
A
Step-by-step explanation:
The equation must equal 50 and the 4 should be added not multiplied
The blueprints of a house show that a wall is 3.5 inches long. If the blueprints have a map scale of 1.5 inches = 3 feet, how long is the actual wall?
Answers
Step-by-step explanation:
Given the blueprints of a house show that a wall is 3.5 inches long.
Length of the wall = 3.5 inches
Mpa scale used in blue print is,
1.5 inches = 3 feet
Such that 1 inch = 2 feet
Length of the wall = 3.5 inches = 3.5 * 2 = 7 feet
The length of the actual wall = 7 feet
Solve each equation -3(n+5)=27
Answers
Answer:
n = − 14
Step-by-step explanation:
-3(n+5)=27
-(3n+3·5)=27
-(3n+15)=27
Please mark me brainliset if this helped (I need it)
Answer: n=4
Step-by-step explanation:
What percent of Coach passengers did not check bags
Answers
Answer:B is the Answer
Step-by-step explanation:
A circle with area \blue{81\pi}81πstart color #6495ed, 81, pi, end color #6495ed has a sector with a central angle of \purple{120^\circ}120 ∘ start color #9d38bd, 120, degrees, end color #9d38bd. What is the area of the sector?
Answers
Answer:
27π
Step-by-step explanation:
trust me, it's right lol
Simplify the rational expression. State any restrictions on the variable.
Answers
Answer:
Step-by-step explanation:
The value of t must not be one that makes the denominator zero, hence must not be 8.
The steps to convert 37 over 4 to a decimal are shown below:
Division is shown with divisor 4, quotient 9.21, and dividend 37 labeled as Step 1. The numbers below 37 in sequence are subtract 36 lebeled as Step 2, 10 labeled as Step 3, subtract 6 labeled as step 4, 4, subtract 4, and 0.
In what step is the first error?
Answers
Answer:
Step 4
Step-by-step explanation:
We are given that
[tex]\frac{37}{4}[/tex]
We have to convert [tex]\frac{37}{4}[/tex] into decimal.
Divisor:The number which divides the dividend.
Dividend:The number which is divided by divisor.
Quotient:The number obtained when the divisor divides the dividend.
[tex]\frac{37}{4}=9.25[/tex]
Step:1
Dividend 37
Step 2:
37
-36
=1
Step 3:
10
Step 4:
10
-8
=2
Step 5:
20
-20
=0
Hence, the first error in step 4.
The monthly salary of workers in the public works department is $1,500, $3,000, $3,500, $3,500, $4,000, $4,500, $5,000, $6,000, $6,500, $6,500, and $9,000. Explain the impact of the outlier(s) on the measure of central tendency for this data set.
1.There is a minimal increase to the mean because there is a low outlier and a high outlier in the data set.
2.There is a minimal decrease to the mean because there is a low outlier and a high outlier in the data set.
3.There is a large increase to the mean because of the $9,000 outlier.
4.There is a large decrease to the mean because of the $1,500 outlier.
Answers
Answer:
(B) median because there is an outlier
Step-by-step explanation:
The given data is as follows:
{1, 4, 9, 4, 10, 8, 42}
We can see from the given data that 42 is a data point which differ greatly from the other data points, and from the definition of OUTLIER that is a data point that differ greatly from the trend expressed by the other values in the data set.
Thus, 42 is an outlier.
Now, We have to find the center for the given data set, thus we will use the median as the definition of median states that median is the middle value of the data set.
Therefore, the best measure to find the center of the given data will be median because there is an outlier 42 present in it.
Thus, option B is correct.
Read more on Brainly.com - https://brainly.com/question/3151349#readmore
Step-by-step explanation:
at a fall festival,the student council sold 149 drinks and collected $223.50. The total amount collected is proportional to the number of drinks sold. What is the constant of proportionality in terms of dollars per drink ?
Answers
Answer:
1 drink/$1.50
Step-by-step explanation:
you have to find the cost of each drink by dividing the money raised by the number of drinks sold
223.50/149=
1.50
Answer:
Step-by-step explanation:
Find the unit cost:
$223.50
------------------ = $1.50/drink
149 drinks
Then y = revenue from sales of drinks = ($1.50/drink)(number of drinks).
The constant of proportionality is $1.50/drink.
Adam wants to compare the fractions 2 over 5, 1 over 6, and 1 over 3. He wants to order them from least to greatest and rewrite them so they all have the same denominator. Explain how Adam can rewrote the fractions. I'm in 4th grade to..
Answers
Answer:
Least to greatest should be 1 over 6, 1 over 3, and then 2 over 5. least to greatest with the same denominator should be 5 over 30, 10 over 30, and 12 over 30
Step-by-step explanation:
First step is to find the common denominator, which is 30. Then you want to figure out how you got to 30 and multiply that by nominator. after you have that all complete, then just sort from least to greatest. To listed from least to greatest is you take the smallest number, for example which would be 5 over 30 and then sorts continuously from the greater number as well, which would be 12 over 30
***EASY***** HELP!!!!!! i have been crying over this problem for an hour. please help
Answers
Answer:
UT = 15
Step-by-step explanation:
Its okay this was a hard one to know. since its a 90 degrees angle you can use the Pythagorean theorem.
A^2 + B^2 =C^2
but in this case they give you c and as for b
so it be C^2 - A^2 = B^2
17^2 - 8^2 = B^2
289 - 64 = B^2
225 = B^2
now you square both sides getting B = [tex]\sqrt{225}[/tex]
p^2=h^2-b^2
p^2=17^2-8^2
p^2=289-64
p^2=225
p=15
A weather forecast during September says that it will likely rain two out of the next five days. If the weather does not change, how many days will it likely rain in the month of September (30 days)?
A. 2/30
B. 5/30
C. 12/30
D. 75/30
Answers
Answer:
C. 12/30
Step-by-step explanation: 2/5 for every 5 days and there are 30 days in September so there is already 2/5 so 5 days are already in place so add 2 to the 2/5 and 5 to the 2/5 on their corresponding numbers until the five reaches thirty then the 2 will reach 12. Happy to Help.
Would you rather buy 18 eggs at this price 2/$8.00 or 18 eggs at this price? $.97 buy 2 get one free
Answers
Answer:
you should by 18 eggs at the second price.
Step-by-step explanation:
my reason being is that if you buy it for the second price you will get two for the price of one which will be $0.97cents.
Answer:
Answer: you should by 18 eggs at the second price. Step-by-step explanation: my reason being is that if you buy it for the second price you will get two for the price of one which will be $0.97cents.
Step-by-step explanation:
Answer: you should by 18 eggs at the second price. Step-by-step explanation: my reason being is that if you buy it for the second price you will get two for the price of one which will be $0.97cents.
Suppose that 35% of all voters voted for a recall. Find the mean of the sampling distribution of the proportion of the 3150 people sampled in an exit poll who voted for the recall.
Answers
Answer:
0.35 is the mean of the sampling distribution of the proportion.
Step-by-step explanation:
We are given the following in the question:
Percentage of voters who voted for recall = 35%
[tex]p = 35\% = 0.35[/tex]
Sample size, n = 3150
We have to find the mean of the sampling distribution.
Formula for mean of sampling distribution:
[tex]\mu = p[/tex]
Putting values, we get,
[tex]\mu = 0.35[/tex]
Thus, 0.35 is the mean of the sampling distribution of people sampled in an exit poll who voted for the recall.
Lou has a solid clay brick in the shape of a rectangular prism with a length of 8 inches, a width of 3.5 inches, and a height of 2.25 inches. If the clay weighs 1.055 oz/in^3, how much does Lou's brick weigh, to the nearest ounce?
Answers
Answer:
The weight of the brick is 60 ounce to the nearest ounce
Step-by-step explanation:
In this question, we are asked to calculate the weigh of Lou’s brick given the dimensions of the shape of the brick and the weight of the clay.
To answer this question quite aptly, we need to know exactly the volume of the rectangular prism given the dimensions we have in the question.
To calculate this volume , we simply use the measurements we have to get it.
mathematically the volume of a rectangular prism is simply V = w * h * l
where w , h and l are width, height and length respectively.
now let’s calculate!
V = 3.5 * 2.25 * 8 = 63 inches^3
Now we need to know what the brick weigh in ounce. We already have the weight of the clay. now this is equal to the volume of the brick divided by the weight of the clay.
Mathematically this is = 63/1.055 = 59.72 ounce which is 60 ounce to the nearest ounce
Answer:
60 ounce
Step-by-step explanations:
The volume of a rectangular prism is length multiplied by width and the height.
And if the width is 3.5 inches
Length is 8 inches
Height of 2.25 inches
V = 2.25 × 8 × 3.5
= 63 in³
And since the clay weighs 1.055 oz/in³,the total weight of the clay brick will be derived by dividing the volume of the brick by its weight per in³
63/1.055
= 59.7 and to the nearest whole number = 60 ounce
3 friends split the cost of renting a boat. Each person rented a life preserver. The cost of the boat was $120. The total cost for the boat and life preservers was $135. Write and solve an equation to find the cost of renting a life preserver?
Answers
Answer:
boat rent: $40/per person
Life preserver: $5/per person
Step-by-step explanation:
120 ÷ 3 = 40
135 ÷ 3 = 45
45 - 40 = 5
Suppose 20% of the population are 65 or over, 26% of those 65 or over have loans, and 53% of those under 65 have loans. Find the probabilities that a person fits into the following categories. (a) 65 or over and has a loan (b) Has a loan (c) Are the events that a person is 65 or over and that the person has a loan independent? Explain.
Answers
Answer:
(a)The probability that a person 65 or over and has a loan is 0.052.
(b)The probability that a person 65 or over and has a loan is 0.476
(c) The probability that a person is 65 or over and has a loan independent is 0.0952
Step-by-step explanation:
Conditional probability:
Let A and B any two event is connected to a given random experiment E. The conditional probability of the event A on the hypothesis that the event B is occurred, denoted by P(A|B), is defined as,
[tex]P(A|B)=\frac{P(A\cap B)}{P(B)}[/tex]
So, P(A∩B) = P(B).P(A|B)
Given that,
The age of 20% of population are 65 years or over.
26% of those whose age 65 years or more have loans.
53% of those whose age under 65 years have loans.
E= the person is 65 or more.
F= the person has loan.
P(E)= 20%=0.2
P(F|E)=26%=0.26
P(F|E')=53%=0.53
So,
P(E')=1-0.2=0.8
P(F'|E)= 1-0.26=0.74
P(F'|E')= 1-0.53=0.47
(a)
The probability that a person 65 or over and has a loan is
=P(E∩F)
=P(F|E).P(E)
=0.26×0.2
=0.052
(b)
A person who has a loan either 65 or more , or under 65.
P(F)= P(F∩E)+P(F∩E')
=P(F∩E)+P(E').P(F|E')
= 0.052+ (0.8).(0.53)
=0.476
(c)
Independent event:
If A and B are two independent event,
Then,P(A∩B)=P(A).P(B)
The probability that a person is 65 or over and has a loan independent is
=P(E∩F)
=P(E).P(F)
=(0.2)×(0.476)
=0.0952
The probability that a person is 65 or over and has a loan is 0.052, the probability that a person has a loan is 0.476, and the probability that a person is 65 or over and that the person has a loan independent is 0.0952.
Given :
Suppose 20% of the population are 65 or over, 26% of those 65 or over have loans, and 53% of those under 65 have loans.
Let A represent the person who is 65 or more and B represents the person who has a loan.
If (P(A) = 20% = 0.2) then (P(A') = 1 - 0.2 = 0.8)
If (P(B|A) = 26% = 0.26) then (P(B'|A) = 1 - 0.26 = 0.74)
If (P(B|A') = 53% = 0.53) then (P(B'|A') = 1 - 0.53 = 0.47)
a) The probability that a person is 65 or over and has a loan is:
[tex]\rm = P(A\cap B)[/tex]
[tex]\rm = P(B|A)\times P(A)[/tex]
[tex]=0.26\times 0.2[/tex]
= 0.052
b) The probability that a person has a loan is:
[tex]\rm P(B) = P(A\cap B)+P(B\cap A')[/tex]
[tex]\rm = P(B \cap A)+P(A')\times P(B|A')[/tex]
[tex]=0.52+0.8\times 0.53[/tex]
= 0.476
c) The probability that a person is 65 or over and that the person has a loan independent is:
[tex]= \rm P(A\cap B)[/tex]
= P(A).P(B)
= (0.2)[tex]\times[/tex](0.476)
= 0.0952
For more information, refer to the link given below:
https://brainly.com/question/23044118
The slide is 4 meters due west of the tire swing and 3 meters due south of the monkey bars. What is the distance between the tire swing and the monkey bars?
Answers
Answer:
The distance between the tire swing and the monkey bars = 5 m
Step-by-step explanation:
Given:
Distance between tire swing and the slide = 4 m
Distance between monkey bars and slide = 3 m
We have to find the distance between tire swing and the monkey bars.
Let the distance be "h" meters.
From the diagram we can see that when they are arranged they form a right angled triangle.
Where the distance we have to find is the hypotenuse of the triangle.
Using Pythagoras formula:
⇒ (hypotenuse)^2 = (base)^2 + (perpendicular)^2
Plugging the values:
⇒ [tex](hypotenuse)^2 = (base)^2 + (perpendicular)^2[/tex]
⇒ [tex]h^2=b^2+p^2[/tex]
⇒ [tex]h=\sqrt{b^2+p^2}[/tex]
⇒ [tex]h=\sqrt{(4)^2+(3)^2}[/tex]
⇒ [tex]h=\sqrt{16+9}[/tex]
⇒ [tex]h=\sqrt{25}[/tex]
⇒ [tex]h=5[/tex] m
So,
The distance between the tire swing and the monkey bars = 5 m
A baseball player had 4 hits in 8 games. At this rate, how many hits will the baseball player have in the next 28
Answers
Answer:
The answer is 14 hits!
Step-by-step explanation:
This is because of dividing 28 by 8: so you get 3.5. Use the 3.5 and times it by the amount of hits: which is 4. Then BOOM, you got yourself 14 hits!
A família Oliveira consiste no pai, na mãe e em alguns filhos. A idade média da família é de 18 anos. Sem contar com o pai, que tem 38 anos, a idade média familiar diminui para 14 anos. Quantos filhos tem a família Oliveira? a) 2 b) 3 c) 4 d) 5 e) 6
Answers
Answer: e) 6
Step-by-step explanation:
Let x be mother + children = 18
Father's age = 38
Average age of the family = 14
38 + 18x /( x + 1 )= 14
Opening the bracket
38 + 18x = 14x + 14
Collecting like terms
24 = 4x
x = 6
no of children in the family is 6.
If KM is drawn on this quadrilateral, what will be its length?
18
45M
16 units
18 units
40 units
45 units
Answers
The length of KM on the quadrilateral would be 18 units .
Using the following Information from the quadrilateral;
The sides JM and KL are parallel , This means that :
KL||JM.The length of the diagonals of the quadrilateral would be the same .
JL = KM (diagonals of Isosceles trapezoid are equal)From the question ;
JL = 18
JL = KM = 18 (diagonals of isosceles trapezoid are equal)Then ;
KM = 18
Hence, the length of KM would be ; 18 units .
If angle a measures 67 degrees ,how much does angle b measure ?
Answers
Answer:
∠ b = 23°
Step-by-step explanation:
Complementary angles sum to 90°, thus
∠ a + ∠ b = 90°, that is
67° + ∠ b = 90° ( subtract 67° from both sides )
∠ b = 23°
Three moons are in the same circular orbit around a planet. The moons are ach 125,000 km from the surface of the planet, llocated at points a, b, and c. The planet is 15,000 km in diameter and angle abc= 90 degrees. How far is point a from point c?
Answers
Answer:
AC = 215,000 km
Step-by-step explanation:
I've attached a diagram that depicts this 3 moons and the planet in regards to their positions.
We need to find the distance AC as shown in the image.
We are given that AM and NC = 100,000 km
And diameter; MN = 15,000km
Thus,AC = MN + NC
AC = 15000 + 100,000 + 100000 = 215,000 km
In ΔCDE, the measure of ∠E=90°, the measure of ∠D=38°, and DE = 12 feet. Find the length of CD to the nearest tenth of a foot.
Answers
Given:
Given that the triangle CDE is a right triangle.
The measure of ∠E is 90° and ∠D is 38°
The length of DE is 12 feet.
We need to determine the length of CD.
Length of CD:
The length of CD can be determined using the trigonometric ratio.
Thus, we have;
[tex]cos \ \theta=\frac{adj}{hyp}[/tex]
where [tex]\theta=D[/tex] and the side adjacent to angle D is ED and hypotenuse is CD.
Substituting these values, we get;
[tex]cos \ D=\frac{ED}{CD}[/tex]
where ∠D = 38°, ED = 12 feet.
Substituting, we get;
[tex]cos \ 38^{\circ}=\frac{12}{CD}[/tex]
Simplifying, we have;
[tex]CD=\frac{12}{cos \ 38^{\circ}}[/tex]
[tex]CD=\frac{12}{0.788}[/tex]
Dividing, we get;
[tex]CD=15.2[/tex]
Thus, the length of CD is 15.2 feet.
Answer:
51.6
Step-by-step explanation:
its because you have to use cos toh and all of the calculator functions
Translate this sentence into an equation.
72 is the sum of 20 and Chau's age.
Use the variable c to represent Chau's age.
Answers
Answer:
c+20=72
Step-by-step explanation:
What is the answer to this question
Answers
5
y=2x+5y, equals, 2, x, plus, 5
Complete the missing value in the solution to the equation.
Answers
Answer:
(2,9)
Step-by-step explanation:
It's on khan
The missing value is 9 in the solution to the given equation y = 2x + 5.
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
The equation is given in the question
y = 2x + 5 ....(i)
The one value is 2 in the solution to the equation
To determine the missing value, we have to substitute the value of x = 2 in the given equation.
As per the question, we have
⇒ y = 2x + 5
⇒ y = 2(2) + 5
Apply the multiplication operation,
⇒ y = 4 + 5
Apply the addition operation,
⇒ y = 9
Therefore, the missing value is 9 in the solution to the given equation.
Learn more about the equations here:
brainly.com/question/13947055
#SPJ5
The question seems to be incomplete the correct question would be
y = 2x + 5 Complete the missing value in the solution to the equation. (2, [] )
You are comparing phone plans. Q company charges a one time fee of $25 and then $3 per month. W company charges a one time fee of $60 and then $1 per month. How many months until the two companies have the same cost
Answers
Answer:
17 1/2 months or rounded up to 18
Step-by-step explanation:
so first you need to set up an equation,
lets do company Q first..
because the monthly fee is 3 bucks thats gonna be the number that goes hand in hand with x so lets put that down
Q - 3x
now we have to add our one time fee of 25 dollars
Q - 3x + 25 .. bam thats our first equation
lets do the same thing for our next company
W - x + 60
( because the fee is one dollar, theres no reason to put 1x, its not mathematically correct, so we just leave it as x )
so now we have to set up the equation together, and because we are trying to find when the two will meet and have an EQUAL cost we make them equal to each other
so
3x + 25 = x + 60
if you solve it...
2x + 25 = 60
2x + 35
x = 17.5