Answer:
465
Step-by-step explanation:
If a classroom averages 31 desks (62/2=31) for 1 classroom, 31 multiplied by 15 is 465
simplify -2+5(2+6r)
I’ll mark brainlist
Answer:
10+30r
Step-by-step explanation:
-2+5(2+6r)
expand 5(2+6r)
5x2=10
(6r)x(5)=30r
so it is 10+30r
then add that to -2
8+30r
Hope that helps :)
To stay in a hotel it costs $104 each night (n) plus a $15 fee for parking. Think of the linear function that demonstrates the total cost (C) of staying in the hotel in terms of the number of nights (n) stayed. whats the initial value ?
Answer:
the equation is: (104 * x) + 15 = y i believe
Step-by-step explanation:
104 OF THE NUMBER of nights so times x because you dont know the number
and + 15 because of the fee
A digital communication channel transmits bits of information, usually designated as 0 and 1. If a sender transmits a 0, he/she hopes the recipient receives a 0. If a sender transmits a 1, he/she hopes that the recipient receives a 1. Unfortunately, this is not always the case. Suppose on a certain transmission line, a transmitted 0 is received correctly 90% of the time (10% of the time a 1 is received), and a transmitted 1 is received correctly 74% of the time. (26% of the time a 0 is received.) It is known that on this transmission line, 80% of all bits transmitted are 0 bits. A randomly selected transmitted bit is examined. Say its value is X. The bit received is Y. a.What is the probability that X
Answer:
a) 0.80
b) 0.72
c) 0.02
Step-by-step explanation:
It is assumed that
X = Bit transmitted
Y = Bit received
[tex]X^{0}[/tex] = Transmissted bit is 0
[tex]X^{1}[/tex] = Transmissted bit is 1
[tex]Y^{0}[/tex] = Received bit is 0
[tex]Y^{1}[/tex] = Received bit is 1
As per the given condition
P [ [tex]Y^{0}[/tex] | [tex]X^{0}[/tex] ] = 90%
P [ [tex]Y^{0}[/tex] | [tex]X^{1}[/tex] ] = 100% - 90% = 10%
P [ [tex]Y^{1}[/tex] | [tex]X^{1}[/tex] ] = 74%
P [ [tex]Y^{0}[/tex] | [tex]X^{0}[/tex] ] = 100% - 74% = 26%
P [ Tramitted bits are 0 ] = 80%
Now calculate each situation
a)
As all the transmitted bits are o has possibilit of 80% then
P [ X = 0 ] = P [ [tex]X^{0}[/tex] ] = 80% = 0.80
b)
P [ X = 0, Y = 0 ] = P [ [tex]X^{0}[/tex] , [tex]Y^{0}[/tex] ] = P [ [tex]Y^{0}[/tex] | [tex]X^{0}[/tex] ] x P [ [tex]X^{0}[/tex] ] = 90% x 80% = 72% = 0.72
c)
P [ X = 1, Y = 0 ] = P [ [tex]X^{1}[/tex] , [tex]Y^{0}[/tex] ] = P [ [tex]Y^{0}[/tex] | [tex]X^{1}[/tex] ] x P [ [tex]X^{1}[/tex] ] = 10% x ( 100% - 80% ) = 10% x 20% = 2% = 0.02
What is the solution of log2x + 6 8 = 3?
Answer:
x=-3
Step-by-step explanation:
log(2x + 6) +8 = 3
Solve this log equation for x
First subtract 8 from both sides
log(2x+6)= -5
Now we convert it into exponential form
If log(x) = a then 10^a = x
log(2x+6)= -5 becomes
subtract 6 from both sides
Now we divide by 2 on both sides
x= -3 approximately
Simplify 3(r+5)-4r help me pls NOW
Answer:
-r + 15
Step-by-step explanation:
3r + 15 - 4r =
-r + 15
Hope that helps!
what is an equivalence class?
This article is about equivalency in mathematics. For equivalency in music, see equivalence class (music).
Congruence is an example of an equivalence relation. The leftmost two triangles are congruent, while the third and fourth triangles are not congruent to any other triangle shown here. Thus, the first two triangles are in the same equivalence class, while the third and fourth triangles are each in their own equivalence class.
In mathematics, when the elements of some set S have a notion of equivalence (formalized as an equivalence relation) defined on them, then one may naturally split the set S into equivalence classes.
The information is from https://en.wikipedia.org/wiki/Equivalence_class
If it is wrong I am sorry
Write the equation in standard form for the circle x^2 + y^2 - 14y + 24 = 0
Answer:
x^2+(y-7)^2=25
Step-by-step explanation:
x^2+y^2-14y=-24
x^2+(y-7)^2-49=-24
x^2+(y-7)^2=25
For a school fundraiser Paul bought a big box of ducks and wrote prize amounts, in dollars on the bottom of each rubber duck. The prize amounts were $5, $10, $20, $50, and$100. The number of ducks with each prize amount varied so that the total value for all the ducks with each prize amount was always $500. Paul then put all of the rubber ducks in his schools swimming pool. At the fundraiser participants used a long net to catch a duck from the pool. They won the amount written on the bottom of the duck, and then they threw the duck back into the pool before the next persons turn. Since the ducks were returned to the pool after they were caught the chances of winning any particular amount remained the same. Andrew paid $15 to play the game once. If we assume he randomly selected a duck, what is the probability that Andrew won more money than he paid to play the game?
Answer:
Redding East Rotary donates 120 holiday baskets every year. ... Frank was $50 proud. ... Please turn in your tickets and money to Bill Evanhoe directly this year. ... The door prize of $20 to San Francisco Deli was won by Carla Barrett. ... The Duck Derby has raised $3,515,000 and if you put all those ducks end to end they ...
Step-by-step explanation:
What is the y intercept of a line that passes through the points (2, -2.5) and (4, -2)
Answer:
-3
Step-by-step explanation:
To find the slope of this line, you have to subtract that first y coordinate from the second y coordinate, and divide that by the quantity equal to the second x coordinate minus the first.
-2 - -2.5 = 0.5
4 - 2 = 2
0.5/2 = 1/4
Now you plug in the info you already have into a y=mx+b format. Chose one of the pairs of coordinates given in instruction to be the x and y values.
-2 = 1/4(4) + b
-2 = 1 + b
-3 = b
-3 is the y-intercept.
What type of angles are ∠4 and ∠6?
I’ll mark brainiest
Answer:
angle 4 and angle 6 are ALTERNATE INTERIOR angles
Answer:
alternate interior
Step-by-step explanation:
hope it helps ;)
Solve the equation for y: 2 y – 25 = 19
Answer:
2y - 25 = 19
2y = 19 + 25
2y = 44
y = 44 / 2
y = 22
Hope it helps
How does 39.54 compare to 39.4
Answer:
39.54 is greater than 39.4
Step-by-step explanation:
Answer:
39.54 is LESS than 39.4
1. Which solid has one base that is a rectangle and four lateral surface that are triangles?
A- Triangular Pyramid
B- Cone
C- Rectangular Prism
D- Rectangular Pyramid
2. A solid with at most one base CANNOT be which of the following?
A- Cone
B- Cube
C- Pyramid
D- Sphere
Find the amount of time. I = $54, P = $800, r= 4.5% The amount of time is years.
Answer:
1.5 years
Step-by-step explanation:
I = prt
54 = 800(.045)t
54 = 36t
t = 54/36
t = 1.55
Answer:
The amount of time is 1.5 years
Find the surface area of the following prism:
6 m
6 m
10 m
7.2 m
4.8 m
Answer:
172.8m³
Step-by-step explanation:
1/2(7.2)(4.8)(10)=172.8m³
State a cubic or quartic function with the least degree possible in intercept form for the given graph. Assume that all x-intercepts are integers, and that the constant factor a is either 1 or −1.
Enter the correct value in the box to answer the question.
y= ?
Answer:
y = [tex]-x^{3} - 2x^{2} + 5x + 6[/tex]
Step-by-step explanation:
The function will be cubic. The x-intercepts are -4, -1, and 2
The constant factor is -1 because the graph falls on the right. So,
y = -(x + 4)(x + 1)(x - 2)
y = -[tex]x^{3} -2x^{2} + 5x +6[/tex]
Please help I think it’s 4.0cm2 I’m i right?
Answer:
yes u are right give me brainlest plzzzzzzzzzzzzzzzzzzzzzzzzzz
Step-by-step explanation:
The graph of f(x) = x2 was transformed tu
create the graph of d(x) = f(x) + 9. Which of
the following attributes will be the same for the
graphs f(x) and d(x)?
1. the domain
11. the range
III. the axis of symmetry
Answer:
i: the domain.
iii: the axis of symmetry.
Step-by-step explanation:
We have the function:
f(x) = x^2
The domain of this function is the set of all real numbers, and the range is:
R: [0, ∞)
(because 0 is the minimum of x^2)
Now we have the transformation:
d(x) = f(x) + 9 = x^2 + 9
Notice that this is only a vertical translation of 9 units, then there is no horizontal movement, then the axis of symmetry does not change.
Also, in d(x) there is no value of x that makes a problem, so the domain is the set of all real numbers, then the domain does not change.
And d(x) = x^2 + 9 has the minimum at x = 0, then the minimum is:
d(0) = 0^2 + 9 = 9
Then the range is:
R: [9, ∞)
Then the range changes.
So we can conclude that the attributes that will be the same for f(x) and d(x) are:
i: the domain.
iii: the axis of symmetry.
Seven times the difference of a number and 7
Answer:
7 (x-7) or 7x-49
Solve the problem:
The number of inhabitants in millions of a certain city can be calculated using the expression [tex]p (x) = 2^{3} * 10\frac{2t}{3}[/tex] If t represents time in years:
a) How long approximately must elapse for the population of the city to be 200 million inhabitants?
b) How many inhabitants will be in the city after 4 years?
Answer:
Given function:
p(t) = 2³[tex]10^{2t/3}[/tex]a)
Find x when p(t) = 200:
2³[tex]10^{2t/3}[/tex] = 200[tex]10^{2t/3}[/tex] = 2522t/3 = log 25t = 3 log 5t = 2.0969 years ≈ 2 years and 1 monthb)
Find p(t) when t = 4:
p(4) = 2³([tex]10^{2*4/3}[/tex] ) = 8*[tex]10^{8/3}[/tex] = 3713.27 million4.5m + 8 - 2.3m - 3.5
Answer:
494235234934-1304039445
Step-by-step explanation:
4r567890e-r0987ytdghcn
Bentley had 17 pencils. Kerry
had 32 pencils. How many
more pencils does Kerry have
than Bentley?
Bentley had 17 pencils. Kerry
had 32 pencils. How many
more pencils does Kerry have
than Bentley?
Solution:-Number of pencils Bentley had = 17 pencils.
Number of pencils Karry had = 32 pencils.
Number of pencils Karry have more than Bentley = 32 - 17 = 15
Answer:-Karry have 15 pencils more than Bentley.
45 is what percent of 9
i have to show work
Answer:
500%
Step-by-step explanation:
45 divided by 9 x 100 = 500
Answer:
20%
Step-by-step explanation:
1) Calculate fraction's value.
2) Multiply that number by 100.
3) Add the percent sign % to it.
i need help and fast hurry! im not joking!
B = I(1 + r)2(1 + r) = I(1 + r)3 What pattern is forming?
Elijah has a loyalty card good for a discount at his local grocery store. The item he
wants to buy is priced at $44, before discount and tax. After the discount, and before
tax, the price is $40.92. Find the percent discount.
Answer:
7%
Step-by-step explanation:
Solve the equation below. 2.3=p+0.6p=
Answer:
p=1.4375
Step-by-step explanation:
In AHIJ, the measure of J=90°, IJ = 5 feet, and JH = 3.2 feet. Find the measure of
I to the nearest tenth of a degree.
5
J
H
3.2
Answer:33.6
Step-by-step explanation:
Answer:
32.6
Step-by-step explanation:
With
Sue buys a car costing £8000 plus
20% VAT.
She pays £4000 deposit and then
chooses to pay the balance in ten equal
monthly payments.
Calculate each monthly payment
CS
Answer:
Each monthly payment is of £560.
Step-by-step explanation:
Sue buys a car costing £8000 plus 20% VAT?
She has to pay:
8000 plus 20% of tax. So
[tex]T = 8000 + 0.2*8000 = 9600[/tex]
She pays £4000 deposit and then chooses to pay the balance in ten equal monthly payments.
4000 deposit, and then 9600 - 4000 = 5600 divided in ten equal monthly payments.
5600/10 = 560
Each monthly payment is of £560.
In ANOP, the measure of ZP=90°, the measure of ZN=26°, and OP = 13 feet. Find
the length of PN to the nearest tenth of a foot.
Answer:
Length of PN = 26.65 ft (Approx.)
Step-by-step explanation:
Given:
In ΔNOP
∠ P = 90°
∠ N = 26°
OP = 13 ft
Find:
Length of PN
Computation:
using trigonometry application
Tan 26 = 13 / PN
0.4877 = 13 / PN
Length of PN = 26.65 ft (Approx.)