Answer:
x≥ 19
Step-by-step explanation:
Let the price of an amusement park ticket is x
If the price of an amusement park ticket is no less than x, therefore, it has to be x or greater than x;
The inequality sign to be used will be the greater than or equal to sign (≥). Hence the required inequality is x≥ 19 where x is the price of an amusement park ticket.
If there are 15 cats in the apartment complex how many dogs are there?
15 divided blank = blank dogs. 1 dog 5 cats
Answer:
3 dogs
Step-by-step explanation:
So there is 1 dog for every 5 cats
15 divided by 5 = 3
5 is 5 cats for each 1 dog
Answer:
What I don't get the question
Step-by-step explanation:
??
A town park has two biking trails. Marsh Trail is 5 o miles long. Woodland Trail is
2 miles long. How much longer is Marsh Trail than Woodland Trail?
HELP ME
Answer:
2 5/10
Step-by-step explanation:
The average number of people who attended football games at a stadium increased from 8,000 people in the
year 2005 to 12,500 people in the year 2012. By what percentage did the average number of people at the games
increase from 2005 to 2012?
А
56.25%
B
43.75%
C 36%
D 64%
e) que características tienen las gráficas que representan una relación de proporcionalidad directa entre la cantidad de agua en la cisterna y el tiempo del servicio?
f) escriban las expresiones algebraicas de las relaciones que son de proporcionalidad ¿en qué son diferentes?
g) ¿qué representan esas diferencias
Answer:
here is a videos look it up on you tube and it might help
Step-by-step explanation:
search this
Interpreting graphs of proportional relationships
A rectangular prism has a length of 11ft, a height of 4ft, and a width of 3ft. What is its volume, in cubic ft?
Answer:
132 ft³
Step-by-step explanation:
L=11 W=3 H=4
V=LWH
V=(11)(3)(4)
V=132 ft³
Help me please I’ll give brainliest!!
Answer:
Step-by-step explanation:
Divide the pentagon radially into 5 congruent, isosceles triangles.
Area of one triangle = ½×7.2×4.955 = 17.838 mm²
area of pentagon = 5×17.838 mm ≅ 89.2 mm²
Four buses carrying 153 high school students arrive to Montreal. The buses carry, respectively, 36, 46, 32, and 39 students. One of the students is randomly selected. Let X denote the number of students that were on the bus carrying this randomly selected student. One of the 4 bus drivers is also randomly selected. Let Y denote the number of students on his bus. Compute the expectations and variances of X and Y: E(X)
Answer:
E(X) = 38.9346
Var(X) = 25.588
E(Y) = 38.25
Var(Y) = 26.1875
Step-by-step explanation:
Given - Four buses carrying 153 high school students arrive to Montreal. The buses carry, respectively, 36, 46, 32, and 39 students. One of the students is randomly selected.One of the 4 bus drivers is also randomly selected.
To find - Compute the expectations and variances of X and Y.
Proof -
Let us assume that,
X be The number of students that were on the bus carrying this randomly selected student.
Y denote the number of students on his bus.
Now,
E(X) = [tex]\frac{36(36) + 46(46) + 32(32) + 39(39)}{153}[/tex]
= [tex]\frac{5957}{153}[/tex]
= 38.9346
⇒E(X) = 38.9346
Now,
E(Y) = [tex]\frac{36 + 46 + 32 + 39}{4}[/tex]
= [tex]\frac{153}{4}[/tex]
= 38.25
⇒E(Y) = 38.25
Now,
Var(X) = [tex]\frac{36(36 - 38.9346)^{2} + 46(46 - 38.9346)^{2} + 32(32 - 38.9346)^{2} + 39(39 - 38.9346)^{2}}{153}[/tex]
= [tex]\frac{310.0276 + 2296.3144 + 1308.5091 + 0.1668}{153}[/tex]
= [tex]\frac{3915.0179}{153}[/tex]
= 25.588
⇒Var(X) = 25.588
Now,
Var(Y) = E(Y²) - [E(Y)]²
= [tex]\frac{36^{2} + 46^{2} + 32^{2} + 39^{2} }{4} - (38.25)^{2}[/tex]
= [tex]\frac{5957}{4} - 1463.0625[/tex]
= 1489.25 - 1463.0625
= 26.1875
⇒Var(Y) = 26.1875
MUST HELP!!!! (50 POINTS) +BRAINLEST +5 STARS +THANKS ON PROLFILE!!!!
The ratios of the _______________________of the objects is 2.4.
*use the words below to fill in the blank*
Equal, 2.4, point of dilation, Scale factor, perimeters, (7.2,4.8), Enlargement, areas, (4.8, 9.6)
Helpp me pls ,, 15 points given !!
Answer: The answer is B
Step-by-step explanation:
6 (x + 4) = 48
please help!!
Answer:
x = 4
Step-by-step explanation:
6(+4)=48
6+24=48
6+24=48
6+24−24=48−24
6=24
6=24
6/6=24
...
At age 17, Salma deposited $4,444 into an IRA, where it earns 9.8 % interest compounded monthly. What will it be worth when she is twenty-five?
Answer:
l
Step-by-step explanation:
What is the area of the triangle?
Answer:
where is the triangle ?
Step-by-step explanation:
attach a picture
Answer:
height times width divided by 2
Step-by-step explanation:
((a^2m+n)(b^n-2m))/(a^n-m)(b^2m-n)
Answ((a^2m+n)(b^n-2m))/(a^n-m)(b^2m-n
Step-by-step explanation:
2+2 I need help with this, please
Answer:
4
Step-by-step explanation:
2 cookies + 2 cookies = 4 cookies!
The more cookies the better!
Find the inverse of g(n) = - 3 - 1
Og-1 (n) = -(n-3)-1
9
9-1 (n) = In
g-1 (n) = (n + 1)3 + 3
Og-1 (n) = 3+n3
Answer:
[tex]g'(n) = -\frac{n+1}{3}[/tex]
Step-by-step explanation:
Given
[tex]g(n) = -3n - 1[/tex]
Required
Determine the inverse
[tex]g(n) = -3n - 1[/tex]
Replace g(n) with y
[tex]y = -3n - 1[/tex]
Swap positions of x and y
[tex]n = -3y - 1[/tex]
Make y the subject
[tex]3y = -n - 1[/tex]
[tex]3y = -(n + 1)[/tex]
[tex]y = -\frac{n+1}{3}[/tex]
Replace y with g'(n)
[tex]g'(n) = -\frac{n+1}{3}[/tex]
Activity 1
Fill in the missing number:
1. 34 533; 35 533 ; 36 533; 37 533; 38 533
2. 6475; 6 490;
3 6 520; 6 235; 6 250.
3. 55 455; 55 470;
Answer:
3 6 520; 6 235; 6 250.
use the volume formula to find the volume of the prism. 
is there any aswer choices
What is the solution to the equation 7 −3x ≈ 9? (1 point)
Answer:
-16/3 will be the answer for this question
HELP ASAP PLS ANSWER THE QUESTION IN THE PIC I GIV BRAINLEST AND LOTS OF POINTS TO CORRECT ANSWER
Answer:
ABE is the answer hope this helps
1 1/5 + 3 2/5
fractions
Answer:
4 7/15
Step-by-step explanation:
Hope this helps :)
shelby earned $20 babysitting she spent 30%of her earnings at the mall what decimal represents the part of her earnings shelby spent?
Answer:
$6.00
Explanation:
If you do 20x30% then the answer will be 6 and turn it into a decimal, it will be 6.00 and add the dollar sign and you will get the answer
Can someone please help me with this!?
help me help me going tight mabye next friday night going for a plane ride
Y=hx+s solve for the equation for h
Answer:
h=y/x
Step-by-step explanation:
Let's solve for h.
y=hx
Step 1: Flip the equation.
hx=y
Step 2: Divide both sides by x.
hx/x=y/x
h=y/x
Answer:
h = [tex]\frac{y - s}{x}[/tex]Step-by-step explanation:
Subtract s
Y - s = hx
divide by x
h = (y - s)/x
Is this correct?
Answer:
B
Step-by-step explanation:
Yes.
Providing FI is a straight line, then FGH + HGI = 180. The angles are supplementary.
If one of them is 89 then the other one must be 180 - 89 = 91
B is the correct answer.
the Earth receives energy from the Sun through
Billy walks 1/2 of a mile in 1/3 of an hour. What is Billy's walking speed?
A. 2/3
B. 3/2
C. 1/6
D. 6 mph
Answer: B
Step-by-step explanation:
multiply the 1/2 of a mile by 3 (to complete the full hour)
A group of doctors published an article in the New England Journal of Medicine. In the article they revealed the findings of a study to determine if there is a difference in survival rates for men who undergo surgery for localized prostate cancer and those who are treated with observation only. The researchers randomly assigned 731 men with localized prostate cancer to radical prostatectomy or observation. During the years of follow-up, 245 of 367 (66.8%) assigned to surgery survived for at least 5 years and 223 of 364 men (61.3%) assigned to observation survived for at least 5 years.
Required:
a. Construct and interpret a 99% confidence interval for the difference in the true proportion of men like these that would survive for at least 5 years after receiving surgery and the proportion that would survive for at least 5 years when only being observed.
b. How does the confidence interval from part a tell you that there is not sufficient evidence at the a=.01 level that there is a difference in the proportion of men with localized prostate cancer who survive at least five years after receiving surgery and the proportion of men with localized prostate cancer who survive at least five years when only being observed. In other words, how would you know that the p-value for a 2 proportion z test would not be significant at the 0.01 level?
Answer:
a) CI = ( - 0,0352 ; 0,1472 )
b) The CI include 0 since that means we don´t have sufficient evidence at α = 1 % to support differences between the two proportions
Step-by-step explanation:
From sample 1. ( assigned to surgery)
sample size n = 367
sample proportion p₁ = 245/367 p₁ = 66,8 % or p₁ = 0,668
Then q₁ = 1 - 0,668 q₁ = 0,332
From sample 2. ( assigned to observation )
sample size n₂ = 364
sample proportion p₂ = 223/364 p₂ = 61,2 % or p₂ = 0,612
Then q₂ = 1 - 0,612 q₁ = 0,388
Test Hypothesis is:
Null hypothesis H₀ p₂ = p₁
Alternative Hypothesis Hₐ p₂ ≠ p₁
a) CI ( 99 %) if CI = 99% significance level α = 1 % α = 0,01
α/2 = 0,005 n z-table we look z (c) for 0,005
z(c) = 2,578
CI = ( p₁ - p₂ ) ± z(α/2) √(p₁*q₁) / n₁] + [ p₂*q₂/n₂
CI =(0,668 -0,612 ) ± 2,578 * √(0,668*0,332) /367 + (0,612*0,388)/364
CI = 0,056 ± 2,578*√6,04 *10⁻⁴ + 6,52 *10⁻⁴
CI = 0,056 ± 2,578*3,54*10⁻²
CI = ( 0,056 - 0,0912 ; 0,056 + 0,0912 )
CI = ( - 0,0352 ; 0,1472 )
b) The CI include 0 since that means we don´t have sufficient evidence at α = 1 % to support differences between the two proportions
Which of the following are equivalent expressions? Select all that apply. A.3b + 7k = b + b + b + k + k + k + k + k + k + k B.3w + 5j = w × w × w + j × j × j × j × j C. q + 10 + 3v = q + 10 + v + v + v D. 4s3 – 41 = 4 × s × s × s – 41 D.6c2 – 28 = 6 × c + c – 28
Answer:
C
Explanation:
They are the only ones you need to click as they are the equivalent expressions.
c) q + 10+ 3v= there are 3 v's so that clears 3v out, theres
a 10 and a q
C is the only answer
Sorry if this is weird, it forced me to write lol
D. 4s3 – 41 = 4 × s × s × s – 41
I cant tell if these are exponents, if they are, then these are right too
E.6c2 – 28 = 6 × c + c – 28
Answer:
a, b, c, d
Step-by-step explanation:
i did the test
mark brainliest if helped :)
giving brainliest!! *easy*
Answer:
288.68 square millimeters
288.68 square millimeters or 1703.12 square millimeters