Answer:
42
Step-by-step explanation:
If the decimal was 5 or higher, that means it would've been 43, but since it's lower than 4, it rounds down to 42.
random variables, probability distributions and expected value
A community festival organizes a fundraiser for their local park. They sold 25,000 tickets at $20 each. The grand prize is $5,000. There are two prizes valued at $2,000, three prizes valued at $1,000, five prizes of $500, and ten prizes of $100. What is the expected value of this raffle? Round to the nearest cent. Do not round until the final calculation.
Answer:
-19.38
Step-by-step explanation:
E(x)=4,980*1/25000+1,980*2/25,000+980*3/25,000+480*5/25,000+80*10/25,000-20*24,979/25,000
E(x)=0.1992+0.1584+0.1176+0.096+0.032-19.9832
E(x)= -19.38
you have a bill of $56.40.find a 20% tip?
Answer:
11.28
Step-by-step explanation:
Answer:
29
Step-by-step explanation:
A wire of length $100 cm is bent into a rectangle. If the length of the rectangle is $10 cm more than its breadth, find the area of the rectangle.
Answer:
the answer is equal to $1000cm
Will give brainliest if u help!!! Thank you!
28 students travel on a field trip. They bring a van that can seat 12 students
Answer:
16 students will not be riding in that van today
Answer:16 students would be left behind or they would have to get another bus with 4 students in one bus
bus 1 =12 kids bus2=12 kids bus 3=4 kids
Step-by-step explanation:
The stem-and-leaf plot shows the ages of people at a family reunion.
Stem Leaf
0 1 3 3 5 6 8 9
1 1 2 3 5 9
2 0 1 2 9
3 0 0 1 2 5
4 4 5 8
5 0 1 6 7
6 1 3 5 5 7
7 0 2 5
Key: 3 | 5 = 35 years old
How many people at the family reunion are not adults (under the age of 18)?
There are
people at the family reunion who are not adults.
Question 2
How many people at the family reunion are over the age of 65?
There are
people over the age of 65.
Answer:
1) 11
2) 4
Step-by-step explanation:
1) It is 11 because in the first row we ignore the 0 since it is referring to the first digit, so the first row has 7. In the second row, we ignore the one so it would be 4 because the 9, or would be 19, is above 18.
2) It is 4 because there is one person over 65. In the second row we ignore the 7 and there are 3 people in the 7 row.
The endpoints of a side of rectangle ABCD in the coordinate plane are at A (3,9) and
B(5, 1). Find the equation of the line that contains the given segment.
The line segment is CD and point C is at (9,2).
The equation is
Answer:
y = - 4x + 38
Step-by-step explanation:
A(3, 9)
B(5, 1)
[tex]m_{AB}[/tex] = [tex]\frac{1-9}{5-3}[/tex] = - 4
CD║AB
C(9, 2)
y - 2 = - 4(x - 9)
y = - 4x + 38
Can someone help me with this?
Answer:
20
Step-by-step explanation:
4x. x=5
4*5 20
Hope this helps hit the crown :D
How would I do this?
-8 -x = x -4x
Answer:
71
Step-by-step explanation:
yw72wo9838388382828228
why is it important to know whether a number is positive or negative
its good to know if a number is positive or negative because something as simple as forgetting the signs such as - + could drastically change your answer
LET ME KNOW IF I GOT THEM ALL RIGHT PLS
Answer:
I think so
Step-by-step explanation:
Annual sales for a small boutique were $863,000in 2010. Since then the sales have increased at a rate of 2.5% per year. Find the sales in 2018
Answer:
1,035,600
Step-by-step explanation:
since the rate sales increased 2.5% per year 8*2.5=20/100=0.2*863,000=172,600 and since we already are earning 863,000 so 863,000+172,600=1,035,600
Find the length, width and perimeter of 3 possible different rectangles given the area of 12 square units.
Answer:
1.L=4;W=3;P=14
2.L=6;W=2;P=16
3.L=12;W=1;P=26
Step-by-step explanation:
because i know
You invite your friend to go to Peru. Tú invitas a tu amigo a ir a Perú. Tú invitan a tu amigo a ir a Perú. Tú invita a tu amigo a ir a Perú. Tú invitamos a tu amigo a ir a Perú.
Answer:
its A
Step-by-step explanation:
Find the distance between E(5,3) and F(-4,3).
Answer:
3 - 3 = 0 units There is no distance, the points are in the same place.
Step-by-step explanation:
I need help ASP Jason bought a video game for $60.00. He sold it for $72.00. What was the percent of the markup?
Please help and explain.
Answer:
Domain: All real numbers greater than or equal to 1.
Step-by-step explanation:
Answer 1: -14 is not in the domain
Answer 2: 4 is included in the domain
-24 = -8(5x-7) im confused
Answer:
x=2
Step-by-step explanation:
In order to solve the inequality, first simplify it. -8 (5x -7) can be simplified be distributing. Multiply -8 to each term.
-24 = -40x + 56 now you can solve it start by subtracting 56 on both sides
-80 = -40x now divide -40 on both sides
2=x
I hope this helps :)
have a nice day
reflection across y= -x
Answer:
option A) is correct.
Step-by-step explanation:
As we know that when we reflect across the line [tex]y=-x[/tex], the x-coordinate and y-coordinate would change places and be negated.
So the formula about the reflection across [tex]y=-x[/tex] will be:
(x, y) ⇒ (-y, -x)
From the graph, the vertices of the triangle are:
Vertex U = (-5, -2)Vertex T = (-3, -3)Vertex V = (-5, -5)As the rule of reflection across [tex]y=-x[/tex] will produce the image with the vertices T', U' and V' which are as follows:
(x, y) ⇒ (-y, -x)
U(-5, -2) ⇒ (-y, -x) = U' (2, 5) T(-3, -3) ⇒ (-y, -x) = T' (3, 3) V(-5, -5) ⇒ (-y, -x) = V' (5, 5)So, the vertices of U', T' and V' will be:
U' (2, 5) T' (3, 3) V' (5, 5)Therefore, option A) is correct.
I NEED HEL:P PLEASE ALL OF THIS
Answer:
sorry
Step-by-step explanation:
fjdskafjksl;fjklads;nvkanrdjknfvjlrcpd
600:450 and 4:3 why is it equivalant
Answer:
600 ÷ 4 = 150
450 ÷ 3 = 150
The same thing either way.
They are considered proportional ratios
(4x)m+(5x+3)m+(5x+1)m=102
Find the sides of the triangle. Perimeter =102
Here is the set up:
Side 1 is 4x.
Side 2 is 5x + 3
Side 3 is 5x + 1
The perimeter is 102.
Perimeter = side 1 + side 2 + side 3
102 = 4x + 5x + 3 + 5x + 1
102 = 14x + 4
Take it from here.
n= 101
p= 0.24
p(0.20 < p <0.30) =
Answer:
N = 101
p = 0.24
p ( 0.2 ) < p < 0.3
Step-by-step explanation:
Find the inverse of the function.
Answer:
A) [tex]f^{-1}(n)= (n+2)^3[/tex]
Step-by-step explanation:
[tex]f(n) = \sqrt[3]{n} -2[/tex]
[tex]y = \sqrt[3]{n} -2[/tex]
[tex]y = n^{1/3}-2[/tex]
[tex]n = y^{1/3} -2[/tex]
[tex]n + 2 = y^{1/3}[/tex]
[tex]y = (n + 2) ^3[/tex]
[tex]f^{-1}(n) = (n + 2)^3[/tex]
Hope this helps!
Answer:
Option A
Step-by-step explanation:
f(n) =∛n-2
y= ∛n-2
Interchange y and n
n =∛y-2
Subtract -2 on both sides
n+2 = ∛y
both both sides to the 3rd power:
(n+2) to the 3rd power = y
Inverse :
f-1(n) = (n+2) to the 3rd power (option A)
Convert 01100111 from binary to hexadecimal.
Twenty five more than twice a number is fifty five. What is the number?
Answer:
15
Step-by-step explanation:
15x2 = 30
30+25 = 55
Answer:
Step-by-step explanation:
Note all operations:
twenty-five more than → addition → +25twice a number → multiplication → ×2is fifty-five → equal to → =55Create an equation, and make the unknown number be x. 25 is added to x multiplied by 2, which, in all, equals 55:
[tex]2x+25=55[/tex]
Now solve for x. Subtract 25 from both sides:
[tex]2x+25-25=55-25\\\\2x=30[/tex]
Divide both sides by 2:
[tex]\frac{2x}{2}=\frac{30}{2} \\\\x=15[/tex]
The number is equal to 15.
:Done
CHECK:
Insert the value of x to see if it is true:
[tex]2(15)+25=55\\\\30+25=55\\\\55=55[/tex]
This is true, so the value of x is also true.
Find two positive numbers whose product is 64 and whose sum is a minimum. (If both values are the same number, enter it into both blanks.) slader
Answer:
X = 8, y = 8
Step-by-step explanation:
This question is an optimization problem. Two equations are going to be needed here
n = x+y
P = xy
Such that 64 = xy
When we divide through by x we get:
y = 64/x
So that n becomes:
n = x + 64/x
n = x+64x^-1
We take derivative
n' = 1-64x^-2
When n' = 0 then a min|max occurs
0 = 1-64x^-2
Such that:
64/x² = 1
Divide through by x²
64 = x²
x = √64
x = 8
Remember y = 64/x
So,
Y = 64/8
Y = 8.
X = 8, y = 8
Thank you!
Find the slope of (2,18) and (4,28)
5 is your answer because if you plot these on a graph you would know how many points there are in between them and there are 5
GUYS, I GOTM 1MILLIO0N DOLARS IN THE STOCK MAARKAT HOW MUCH IS 1 MILLION DOLLARS IN NE GOTIABLE US CUERENCY CONVERTED TO RUSSIAN RUBELS????/// PLS ILL GIV BRANLEST!11
Hi! I believe your answer is 77,435,300.00 Russian Rubles, which is equivalent to 1,000,000 U.S. dollars. I hope this helps you! Good luck and have a great day. ❤️✨
Answer:
76,922,200.00 RUB
Step-by-step explanation:
wow how in the heck did you do that 0-o your rich dude pls explain how u did it T-T
Two opposite rays _____ form a line.
Answer:
always
Step-by-step explanation:
