Answer:
X is the answer
Step-by-step explanation:
Answer:
x is the answer because it is
What is an equation for the parabola with focus (0, -12) and directrix y = 12
Given:
Focus of a parabola is (0, -12) and directrix is y = 12.
To find:
The equation of the parabola.
Solution:
General form of a parabola is
[tex](x-h)^2=4p(y-k)[/tex] ...(i)
where, (h,k) is vertex, (h,k+p) is focus and y=k-p is directrix.
Focus is (0, -12).
[tex](h,k+p)=(0,-12)[/tex]
[tex]h=0[/tex]
[tex]k+p=-12[/tex] ...(ii)
Directrix is y = 12.
[tex]k-p=12[/tex] ...(iii)
Adding (ii) and (iii), we get
[tex]2k=0[/tex]
[tex]k=0[/tex]
Putting k=0 in (ii), we get
[tex]0+p=-12[/tex]
[tex]p=-12[/tex]
Putting h=0, k=0 and p=-12 in (i).
[tex](x-0)^2=4(-12)(y-0)[/tex]
[tex]x^2=-48y[/tex]
[tex]-\dfrac{1}{48}x^2=y[/tex]
Therefore, the required equation of parabola is [tex]y=-\dfrac{1}{48}x^2[/tex].
Out of 40 students in class 8,20% were absent.How many students were present?
Answer:
32 students were present.
Step-by-step explanation:
To find out how many students were present in class 8, we have to find out how many students were absent first.
As the question has already provided us, the number of students who are absent would be [tex]40 \cdot 20\%[/tex], which equals to [tex]40 \cdot \frac{20}{100}[/tex] which is 8 students in total who were absent in class 8.
Now that we have found out how many students were absent, simply subtract the number of students who were absent from the total number of students in class 8, which is (40 - 8) = 32 students, and you have the number of students that were present: 32.
Hope this helped!
Which of the following equations are
true? Select all that apply.
A 7 +(-7) – 14
B +
-4 + 9 - 5
C 3- (-10) = -7
D-2-6-8
Answer:
A. B. D. NOT C
Step-by-step explanation:
i don't know if you wrote anything wrong but this is correct if you are correct
Evaluate each expression. 9 5 + 3 4
It costs Guido $0.20 per minute to forward voicemail messages as texts to his cell phone. He already spent $4 in forwarding messages this month. His mom has spent $2 forwarding messages. It costs her $0.40 per minute so she can call long distance. Guido’s mom said they have to spend the same amount. How many minutes can he talk?
Answer:
10 Minutes
Step-by-step explanation:
To talk the same amount of time he would have to spend $2. So $0.20 per minute would mean that for 5 minutes it is $1, so he can have 10 minutes
Help 6th grade math thanks
Which measurement is most likely to be the mass of a strawberry?
Answer:
is there anything to go with this?
Step-by-step explanation:
Answer: D
Step-by-step explanation: Saw your recent comment on this
P partitions GR in ratio 2:4. GR is 36cm. How long is GP and PR?
Answer:
12 cm and 24 cm
Step-by-step explanation:
The line is divided in the ratio 2 : 4 = 2x : 4x ( x is a multiplier )
The sum is therefore
2x + 4x = 36
6x = 36 ( divide both sides by 6 )
x = 6
Thus
GP = 2x = 2 × 6 = 12 cm
PR = 4x = 4 × 6 = 24 cm
5x = 1/125
What is X
Answer:
x= 1/25
Step-by-step explanation:
Which is the correct answer?
Note: (If you give me a silly or absurd answer I will report you)
Answer:
sir or mam the answer is B.
Answer:
Translates 7 units to the right Translates vertically up 3 unitsHence the answer is D
Paul is thinking of a number.
He says.
"My number is odd. It is a factor of 18 and a multiple of 3"
There are two possible numbers Paul can be thinking of
Write down these two numbers.
Select all ordered pairs that satisfy the function y=4x+3.
I suppose that you should have given some pairs to choose from.
Anyway, I can tell you how to do it. Given a pair [tex](a,b)[/tex], you have to substitute [tex]a[/tex] and [tex]b[/tex] to [tex]x[/tex] and [tex]y[/tex] respectively, and see if you get something true.
For example, the pair [tex](1,7)[/tex] satisfies the function, because the substitution yields
[tex]7=4\cdot 1+3[/tex]
which is true. On the other hand, the pair [tex](19,3)[/tex] doesn't satisfy the function, because
[tex]3=4\cdot 19+3[/tex]
is clearly false.
ill give the crown things
Dash & Lily like to read books. Dash has read 25 books this summer, and Lily has also read some books this summer.
If together they have read 78 books, how many did Lily read?
Answer:
Lily read 53 books
Step-by-step explanation:
78-25=53
Hope this helps! :3
Plz mark as brainliest!
Students collect $24 for every 10 tickets sold. Suppose m is the amount of money the students collect for selling r raffle tickets. Write an equation that reflects the relationship between m and r
the answer is m=2.4r. I HOPE THIS HELPS YOU OUT
what’s the equation for this
Hope it work for u
Step-by-step explanation:We can make points from the given figure as ,
1 point =(x1, y1)=(-2, -3)
2nd point =(x2, y2)= (0, -6)
3rd point = (x3, y3)=(2 , -9)
Now the equation of line is,
Y=m X+ c where m is slope and c is constantnow two point formula of slope is ,
m = y2-y1/x2-x1putting points in it we get
m=(-6-(-3))/(0-(-2)
m=-3/2 is slope
Now to find C putt the value of m and 3rd point in equation of line we get
y3=m(x3)+c
-9=(-3/2)(2) +c
C= -9+3
C=-6 is value of c
Now at last putt the value of C and m in equation of line we get the required equation ,
Y=(-3/2)X-6 Ans.........................
The following list gives the number of siblings for each of 11 students. 0, 8, 9, 6, 5, 7, 2, 4, 3, 1, 11 Find the modes of this data set. If there is more than one mode, write them separated by commas. If there is no mode, click on "No mode."
Answer:
[tex]0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11[/tex]
Step-by-step explanation:
Given
[tex]0, 8, 9, 6, 5, 7, 2, 4, 3, 1, 11[/tex]
Required
Determine the mode
Though, not necessary; it is a good practice to order the given data either in ascending or descending order.
In ascending order, the ordered data are:
[tex]0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11[/tex]
Mode implies that: the data that has the highest number of occurrence.
In the given data, each data has a frequency of 1.
Hence, the mode is:
[tex]0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11[/tex]
what is the opposite of love
Answer:
opposite of love is hate
hope this answer will help you
Answer:
Hate is opposite of love
Write the number 0.464646464646 as a fraction let x=
Answer:
what is x?
Step-by-step explanation:
Sketch the graph
y= -x + 4
Answer:
You would need to put points at:
(-4,6)
(-3,5)
(-2,4)
(-1,3)
(0,2)
(1,1)
(2,0)
(3,-1)
(4,-2)
(5,-3)
(6,-4)
The graph will look like the one attached:
Hope this helps!!
- Kay :)
Mrs. Postler’s dinner costs $36.00. She wants to leave 20% tip. How much money should Mrs. Postler leave to cover her bill and tip?
Answer:
43.2
Step-by-step explanation:
so you would multiply 36 by .20 or .2 and you would get a answer so you add it to your original amount
у 2х + 4.
What is the answer?
Answer:
well, y 2x+4 has to be y^2x+4
g When comparing the 90 percent prediction and confidence intervals for a given regression analysis Multiple Choice the prediction interval is narrower than the confidence interval. the prediction interval is wider than the confidence interval. there is no difference between the size of the prediction and confidence intervals. no generalization is possible about their comparative width.
Answer:
the prediction interval is wider than the confidence interval
Step-by-step explanation:
Given that the confidence intervals depicts how a researcher got its parameter of interest, for example, regression coefficient, and prediction intervals show the researcher where to find the subsequent sampled data.
Therefore, Prediction intervals must cater to the uncertainty in estimating the population mean, and the random variation of the individual values.
Hence, when comparing the 90 percent prediction and confidence intervals for given regression analysis, a prediction interval is invariably wider than a confidence interval.
This explains the fact that the prediction interval will not collapse to a single value as the sample size rises.
At a dinner, the meal cost $22 and a sales tax of $2.09 was added to the bill. How much would the sales tax be on a $88 meal?
the average rate of change of the function f(x) on the interval -3≤x≤3 is -2.5. If (-3)=14 then which of the following is the value of f(3)?
The average rate of change of f(x) on -3 ≤ x ≤ 3 is given to be
(f (3) - f (-3)) / (3 - (-3)) = -2.5
If f (-3) = 14, then
(f (3) - 14) / (3 + 3) = -2.5
(f (3) - 14) / 6 = -2.5
f (3) - 14 = -15
f (3) = -1
Which statement is true
A. The 6 in 0.6 is ten times the value of the 6 in 6.0 (wrong)
B. The 6 in 6.5 is 1/10 the value of the 6 in 65
C. The 6 in 625 is 100 times the value of the 6 in 625
Answer:
i think it A
Step-by-step explanation:
In a study investigating a link between walking and improved health, researchers reported that adults walked an average of minutes in the past month for the purpose of health or recreation. Specify the null and alternative hypotheses for testing whether the true average number of minutes in the past month that adults walked for the purpose of health or recreation is than minutes.
Complete question is;
In a study investigating a link between walking and improved health, researchers reported that adults walked an average of 873 minutes in the past month for the purpose of health or recreation.
Specify the null and alternative hypotheses for testing whether the true average number of minutes in the past month that adults walked for the purpose of health or recreation is lower than 873 minutes
Answer:
Null Hypothesis: H0: μ = 873
Alternative hypothesis: Ha: μ < 873
Step-by-step explanation:
From the study, the claim is that the true average number of minutes gotten from the population average in the past month that the adults had walked for the purpose of health or recreation is lower than the average of 873 minutes.
Now, the population study says it's equal to 873 minutes.
Thus, the hypotheses can be written as;
Null Hypothesis: H0: μ = 873
Alternative hypothesis: Ha: μ < 873
ostulate
Point D is on segment BC. Segment BC measures 8x units in length.
A line has points C, D, B. The length of line C D is 3 x + 8. The length of line D B is 4 x + 10.
What is the length of segment BC?
Answer:
144Step-by-step explanation:
If point D is on BC, then BD + DC = BC
Given
BC = 8x
CD = 3x + 8
BD = 4x + 10
Substitute and get x
8x = 3x+8 + 4x + 10
9X - 7X = 18
x = 18
Get BCBC = 8x
BC = 8(18)
BC = 144
Hence the length of segment BC is 144
Answer:
144
Step-by-step explanation:
I just had this assignment on edge 2021. Hope this helped :)
1. Your population is comprised of 1,000,000 potential customers. Your marketing department has segmented/stratified this market as follows: a. 400,000 are college graduates. b. 100,000 have graduate degrees. c. 300,000 have some college credits. d. 200,000 have high school diplomas. Your company wants to take a proportional stratified probability sample of 300 people from this population. Answer the following: a. What should be the consideration in deciding to select a stratified sample
Answer:
please ans my question
Step-by-step explanation:
pls................
Please answer quickly will mark brainliest!
Answer:
find a common denominator
Step-by-step explanation:
Shelby is shopping for fruit to pack in her lunch each day this week. She's sees that grapes are on sale for $1.49/lb and pears are on sale for $1.29/lb. She decides to purchase some of each. She spends a total of $8.44 on all fruit she purchased and brought home a total of 6lbs of fruit.
Answer:
What am i supposed to be solving please give more description
Step-by-step explanation:
