Answer:
Directrix
Step-by-step explanation:
The directrix of a parabola is the line, along with a point not on the line (which is the focus), which is used to generate a parabola. The directrix is parallel either to the x- or y-axis, and is perpedicular to the parabola's axis of symmetry (at x = h).
Therefore, the correct answer is "directrix."
HELPP PLEASE
read the picture
Answer:
12 is the answer 12 I think but I'm not sure
If A = {1,20,30..} and B = {4,6} find n(A-B)?
Explanation:-
Given sets are A = { 1,20,30}
B = { 4,6}
Now,
A-B = { 1,20,30} -{ 4,6}
⇛ A-B = { }
Since there are no common elements in both A and B sets
⇛Number of elements in A-B = 0
⇛n(A-B) = 0
Therefore, n(A-B) = 0
ADDITIONAL COMMENT:
Points to know:-
Empty set :-
A set having no element is called an empty set or void set or null set .It is denoted by phi or { } The cardinal number of the Null set = 0Difference of two sets :-
A and B are two sets ,The set of elements which belongs to A and does not belong to B is called The difference between the two sets A and B and it is denoted by A-B.Cardinal number of a set :-
The number of all distinct elements in a set is called its Cardinal number .It is denoted by n(A).Eunice, Helen and Essel shared $14,000 among themselves. Eunice had twice as much as Helen and Helin had twice as Essel. How much did Helen get?
Answer:
Helen amount = $2,000
Step-by-step explanation:
Helen amount = x
Eunice amount = 2 ( Helen amount) = 2x
Helin amount = 2 (Eunice amount) = 2(2x) = 4x
x + 2x + 4x = $14,000 Check Helen = x = $2,000
7x = $14,000 Eunice = 2x = $4,000
x = $14,000 ÷ 7 Helin = 4x = $8,000
x = $2,000
Solve for x. 9(-5 + x)= −108
pls help i don't have much time
Answer:
[tex]\huge\boxed{x = -7}[/tex]
Step-by-step explanation:
This problem utilizes the Distributive Property, which states that:
a(x + y) = ax + ay.
Thus, simply distribute to turn the equation into
9*(-5) + 9 * (x) = -108
-45 + 9x = -108
9x = -63
x = -7
Hope it helps :) and let me know if you want me to elabroate.
Answer: -7
Step-by-step explanation: i took the k12 quiz :)
For f(x) = x + 1 and g(x) = 2x^2 - x - 3, find (f/g)(x).
Answer:
[tex]\frac{1}{2x-3}[/tex]
Step-by-step explanation:
([tex]\frac{f}{g}[/tex] )(x)
= [tex]\frac{f(x)}{g(x)}[/tex]
= [tex]\frac{x+1}{2x^2-x-3}[/tex] ( factorise the denominator )
= [tex]\frac{x+1}{(2x-3)(x+1)}[/tex] ← cancel the common factor (x + 1) on numerator/ denominator
= [tex]\frac{1}{2x-3}[/tex]
1 question~Which inequality is true? Use the number line to help.
-2.5 -2 -1.5 -1 -0.5 0
0.5
1
1.5
2.5
N
-1.5 > 0.5
-0.5 > 0
-1.5 -0.5
o
120.5
2 question~(in the pic)
അത് പോലും അറിയില്ല
എനിക്കും അറിയില്ല
just for a രസം
the probability that a new microwave oven will stop working in less than 2 years is 0.05. the probability that a new microwave oven is damaged during delivery and stops working in less than 2 years is 0.04. the probability that a new microwave oven is damaged during delivery is 0.10. given that a new microwave oven is damaged during delivery, what is the probability that it stops working in less than 2 years?
Answer:
0.40
Step-by-step explanation:
0.04 divided by 0.10 = 0.4
Using conditional probability, it is found that there is a 0.4 = 40% probability that it stops working in less than 2 years.
Conditional Probability
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened. [tex]P(A \cap B)[/tex] is the probability of both A and B happening. P(A) is the probability of A happening.In this problem:
Event A: Damaged during delivery.Event B: Stops working in less than 2 years.0.1 probability of being damaged during delivery, hence [tex]P(A) = 0.1[/tex].
0.04 probability of being damaged during delivery and stop working, hence [tex]P(A \cap B) = 0.04[/tex]
The conditional probability is:
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.04}{0.1} = 0.4[/tex]
0.4 = 40% probability that it stops working in less than 2 years.
A similar problem is given at https://brainly.com/question/14398287
4 of the students in a Biology class passed a Biology test. If these students are 25% of all the students in the class, how many students are in this Biology class? Round your answer to the nearest whole number if necessary.
Answer:
625=63 to the nearest whole number
Step-by-step explanation:
= 4/100×25%
= 625
= 63 to the nearest whole number
Answer:
16
Explanation:
Reasoning:
You know that 4 students = 25% of the class,
and that ? students = 100% of the class,
So you would want to plan it out like this:
4 ----- 25%
? ----- 100%
This is how you would solve it:
4 x 100
25
Multiply 100 x 4 = 400
Divide 400/ 25 = 16
Hope this helped ya!
50 Points
Step 3: Making predictions using data
You and your business partner track the number of customers served and the amount of tips collected per day. The data you gathered is displayed in the chart below.
Servers’ Collected Tips
Customers 54 46 34 67 52 22 49 64 55 80 38 42
Tips ($) $92 $80 $76 $121 $109 $43 $87 $114 $99 $174 $88 $91
a) Create a scatterplot displaying the data in the table. Be sure to include a linear trend line. (2 points)
b) Find the equation of the trend line (line of best fit). Show your work. (2 points)
c) Predict the amount of tips that would be collected if 100 customers were served at the restaurant on a given day. Explain your reasoning. (2 points)
d) Explain how to use the regression calculator to make a reasonable prediction given a data table. (2 points)
Answer:
a) I am sorry, but I don't know this one.
b) y = mx + b
=> b = y-intercept = 0
=> m = slope = Rise/Run
=> Rise/Run = 120/65
=> Rise/Run = 24/13
=> Slope = 24/13
=> Our Equation: y = 24x/13
c) After drawing the trend line, we can conclude that if 100 costumers were served, the amount of tips would be about $185
d) To use a regression calculator, we must be given a table with x and y values. Then we insert the values in the calculator so that it can give us the whereabouts of a point and it can give us the trend line. After the trend line is given, we can make a prediction.
Hoped this helped. Sorry that I didn't answer the first part.
what is the ordered pair for this?
9c+27=27 how many solutions
Answer:
c = 0
Step-by-step explanation:
There can only be one possibility to make this equation make sense. If we were to do any number greater than 0, the equation wouldn't work.
If c = 0
9(0) + 27 = 27
0 + 27 = 27
27 = 27 :)
If c = 1
9(1) + 27 = 27
9 + 27 = 27
36 ≠ 27 :(
Are the two triangles similar?
A) there is not enough information to determine if they are simiar.
B) yes
C) no
Answer:
I am thinking c, but I do not know
Step-by-step explanation:
I am sure but if not c then b
An item has a listed price of $80 of sales tax rate is 9% how much is the sales tax in dollars
Answer:
Sales Tax = $7.20
Step-by-step explanation:
Answer:
To solve this problem, all you need to do is to multiply the listed price of $45.00 by the 9% sales tax. $4.05 Sales tax in dollars.
Evaluate the expression.
17−{2+2[−1(7−10)]2}
What is the value of the expression?
Enter your answer in the box.
Gets 30 PTS!!!
AND BRAINLEST
An equation is a way of writing a statement with two or more expressions with operations such as addition, subtraction, multiplication, and division.
The value of the expression 17 − {2 + 2 [−1 (7 − 10) ] 2} is 3.
What is an expression?An equation is a way of writing a statement with two or more expressions with operations such as addition, subtraction, multiplication, and division.
Example: 2x + 3 x 4 - 3 is an expression.
We have,
= 17 − {2 + 2 [−1 (7 − 10) ] 2}
We will first solve,
(7 - 10) = 7 - 10 = -3
Now,
= 17 - {2 + 2[-1 x -3] 2}
We will solve [-1 x -3],
[-1 x -3] = 3
Now,
= 17 - {2 + 2 x 3 x 2 }
We will solve { 2 + 2 x 3 x 2 }
{ 2 + 2 x 3 x 2 } = 2 + 12 = 14
Now,
= 17 - 14
Subtracting we get,
= 3
Thus,
The value of the expression 17 − {2 + 2 [−1 (7 − 10) ] 2} is 3.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ5
STORY
A large deer population lives in Pleasantview. As more and more
people move to the city, the deer population is on the decline. The
current deer population is 1600. It is declining 12% each year.
Need equation and table of values
gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay
5u-8>32 simplify your answer
Step-by-step explanation:
5u - 8 > 32
5u > 32 + 8
5u > 40
u > 40/5
u > 8
What are the solutions to the system of equations?
y=x^2-5x+6
y=-4x+6
A (0,6) and (1,2)
B (-1,0) and (6,0)
C (-1,0) and (0,6)
D (0,-1) and (6,0)
Step-by-step explanation:
y = x² - 5x + 6
y = -4x + 6
x² - 5x + 6 = -4x + 6
x² - x = 0
x(x - 1) = 0
x = 0 and x = 1
y = -4x + 6 and y = -4x + 6
y = -4(0) + 6 and y = -4(1) + 6
y = 0 + 6 and y = -4 + 6
y = 6 and y = 2
Solution = (0,6) and (1,2)
Option → A
What is the point-slope form of the equation of the line that passes through the point (2,6) and has a slope of 5?
Answer:
(y-6)=5(x-2)
Step-by-step explanation:
Apply the formula (y-y1)=m(x-x1) to the given point and slope(m).
Which expression is equivalent to
(x– xy^2)(yz^2 + 2x)?
(x−xy2)(yz2+2x)
=(x+−xy2)(yz2+2x)
=(x)(yz2)+(x)(2x)+(−xy2)(yz2)+(−xy2)(2x)
=xyz2+2x2−xy3z2−2x2y2
=−xy3z2−2x2y2+xyz2+2x2
Factor the polynomial 3x4 – 2x2 + 15x2 – 10 by grouping.
Which product is the factored form of the polynomial?
(–x2 – 5)(3x2 + 2)
(x2 – 2)(3x2 + 5)
(x2 + 5)(3x2 – 2)
(3x2 – 5)(x2 + 2)
Answer:
(X2+5)(3x2-2)
Step-by-step explanation:
(3x4-2x2)+(15x2-10)
X2(3x2-2)+5(3x2-2)
(X2+5)(3x2-2)
1) The sum of two numbers is 11. Their difference is 1. What are the numbers?
Answer: 6 and 5
Explanation:
6+5 is 11
6-5 is 1
Answer:
The two numbers are 5 and 6
Step-by-step explanation:
I hope this helps!
Could someone please help mee
Step by step
Let Q be the point (a, b). Since the midpoint of P (2, 3) and Q (a, b) is (4, 6), we have
(2 + a)/2 = 4
(3 + b)/2 = 6
Solve for a and b :
(2 + a)/2 = 4
2 + a = 8
a = 6
(3 + b)/2 = 6
3 + b = 12
b = 9
So the coordinates of Q are (6, 9).
4. Rosa Washington spends an average of 20 minutes assembling 1 unit. She works 7 hours per
day. How many units can she assemble in one day?
22.50
65.50
45.75
36.50
a.
b
C.
d.
The following is a menu at a restaurant:Entree - Cheeseburger, Pizza, Grilled CheeseSides - Fries, SaladDrinks - Mountain Dew, Coke, Diet CokeWhat is the total number of combinations for meals?
Answer:
Step-by-step explanation:
8
graph the solution set for the inequality x-2/-3 ≤ -5/6
Answer:
x [tex]\leq[/tex] - 3/2 (The graph is the image I attached)
Explanation:
1) Determine the sign of the fraction next to the variable, in this case, it's positive, which turns the equation into : x + 2/3 [tex]\leq[/tex] - 5/6
2) Move the constant to the right so that x is only on one side, this then turns the equation into: x [tex]\leq[/tex] - 5/6 - 2/3
3) Subtract the fractions, and the answer is x [tex]\leq[/tex] -3/2
Read the statement.
In The Princess and the Goblin, Chapter 9, Curdie feels his way out after getting disoriented in the dark goblin tunnel.
What do the actions described in this statement reveal about Curdie?
He is comfortable with failure.
He stays calm in tense situations.
He enjoys a challenge.
He is ignorant about goblins.
Answer:
He stays calm in tense situations.
Step-by-step explanation:
The actions described in the statement reveal that:
He stays calm in tense situations. Option B
The Princess and the Goblin
Curdie doesn't panic or get paralyzed by terror when he becomes lost in the shadowy goblin tunnel. Instead, he maintains his composure and uses his intuition to find a way out of the difficult and stressful situation.
This character attribute is a sign of someone who can bear pressure and go through challenging situations with clarity and control as seen in this chapter here.
Learn more about Curdie:https://brainly.com/question/33066779
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10. A cell phone costs $200 to start. Then theres is a 50$ charge each month.
a. What is the total cost (start up fee and monthly charge) to use the cell phone plan for 1 month?
Answer:
250
Step-by-step explanation:
y=50x+200
Once you graph the line with the slope above than you should be able to find it on the graph.
24 points! Please solve the percent writing problem!
(I think the following is correct haha. I know what to do, but the exact wording they used confused me slightly. Have a nice day!)
The { percent } should be written as a { fraction } before dividing.
5 ÷ 20% = { 5 ÷ [tex]\frac{1}{5}[/tex]} = { 25 }
Answer:
The percent should be written as a fraction before dividing.
5 ÷ 20% = 5 ÷ [tex]\frac{1}{5}[/tex] = 25
Thirty-three percent of all students at a high school like beef stew. Out of 300 students, 40 are selected randomly and asked whether they liked beef stew. If liking beef stew is a success, what is the probability of a failure for this binomial experiment? 0. 33 0. 40 0. 57 0. 67.
Probabilities are used to determine the chances of an event.
The probability of a failure for the binomial experiment is (d) 0.67
The probability (p) that a student likes beef stew is given as:
[tex]\mathbf{p = 33\%}[/tex]
Using the complement rule, the probability (q) that a student does not like beef stew is calculated as:
[tex]\mathbf{q =1-p}[/tex]
Substitute 33% for p
[tex]\mathbf{q =1-33\%}[/tex]
Express 33% as decimal
[tex]\mathbf{q =1-0.33}[/tex]
Subtract 0.33 from 1
[tex]\mathbf{q =0.67}[/tex]
From the question, the probability (q) that a student does not like beef stew represents failure
Hence, the probability of a failure is (d) 0.67
Read more about binomial probabilities at:
https://brainly.com/question/19578146
The height of a tree sapling was 3.15 inches last year. This year, the height is 5.38 inches. How much did the height of the tree sapling increase? Find the difference.
Answer:
2.23 inches
Step-by-step explanation:
Difference means subtraction and you subtract the smaller number from the bigger number. 5.38 - 3.15 = 2.23 in.
Answer:
2.23 inches
Step-by-step explanation:
We will subtract 3.15 from 5.38 because the problem is asking for the increase. We will take the new height and subtract the old height to see the difference.
5.38 - 3.15 = 2.23 inches
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
