Answer:
5 hours
Step-by-step explanation:
subtract 390 by 215 to get 175 then divide 175/35 to get 5
4) The length of a rectangle is 7 inches more than the width. The perimeter of the rectangle
is 178 inches. Find the width of the rectangle.
Answer:
41 inches
please mark brainliest
Step-by-step explanation:
l= 7+w
perimeter = 2(l+w) =2(7+w +w)= 2(7+2w)= 14+ 4w
178= 14+4w
4w =178-14= 164
w= 164/4 = 41 inches
PLEASE HELP 20 POINTS PLUS BRANLIEST
For each graph below, state whether it represents a function.
Step-by-step explanation:
1. Not a function There is no correlation plus there is two y values for the same x.
2.Not a function, There is two y values for the same x
3.Yes, you can draw a linear line through the points to represent the equation, also there is one x for one y.
4.Yes, this is a step function. It seems there are two y values for same x. but the shaded circle means to include it and the open circle means dont include it so it is a function.
5.No, this is a parabola but this function has two y values for the same x
6. Yes, this is a absolute value function and there is multiple x values for the same y so it IS a function
Graph 3,6,4 represents a function because the x’s do not repeat and it passes the vertical line test. Which means 1,2,5 is not a function because the x's do repeat and it does not pass the vertical line test
Hope this helps
Have a great day/night
Feel free to ask any questions
WILL GIVE BRAINLIEST.
Answer:
10
Step-by-step explanation:
cost/class = cost per class
50/10 = $5 per class
Answer:
The answer is 10
Step-by-step explanation:
Because 50 divided by 10 is 5 and 5 x 10 is 50 which means he payed $50 for 10 classes and $5 for just one. :) You dhould give me brainliest :p
math giving 29 points
Suppose the following tables present the number of specimens that tested positive for Type A and Type B influenza in a country during a flu season. Type A 38 100 186 199 253 380 595 966 1611 2638 3845 4931 5183 5367 5890 Type B 59 95 116 143 156 225 271 366 495 696 851 1060 1140 1101 1202 Send data to Excel (a) Find the mean and median number of Type A cases. Round the answers to at least one decimal place. (b) Find the mean and median number of Type B cases. Round the answers to at least one decimal place. (c) A public health official says that there are more than twice as many cases of Type A influenza than Type B. Do these data support this claim
Answer:
(a) Mean and Median of type A
[tex]\bar x = 2145.47[/tex]
[tex]Median = 966[/tex]
(b) Mean and Median of type B
[tex]\bar x = 531.73[/tex]
[tex]Median = 366[/tex]
(c) The claim by the public health worker is true.
Step-by-step explanation:
Given
[tex]Type\ A: 38\ 100\ 186\ 199\ 253\ 380\ 595\ 966\ 1611\ 2638\ 3845\ 4931\ 5183\ 5367\ 5890[/tex]
[tex]Type\ B: 59\ 95\ 116\ 143\ 156\ 225\ 271\ 366\ 495\ 696\ 851\ 1060\ 1140\ 1101\ 1202[/tex]
[tex]n = 15[/tex]
Solving (a): The mean and median of A.
Mean is calculated using:
[tex]\bar x = \frac{\sum x}{n}[/tex]
[tex]\bar x = \frac{38 +100 +186 +199+ 253+ 380+ 595+ 966 +1611 +2638 +3845+ 4931+ 5183 +5367 +5890 }{15}[/tex]
[tex]\bar x = \frac{32182}{15}[/tex]
[tex]\bar x = 2145.47[/tex]
The median is calculated using:
[tex]Median = \frac{n+1}{2}th[/tex]
[tex]Median = \frac{15+1}{2}th[/tex]
[tex]Median = \frac{16}{2}th[/tex]
[tex]Median = 8th[/tex]
The 8th item is: 966
So:
[tex]Median = 966[/tex]
Solving (b): The mean and median of B.
Mean is calculated using:
[tex]\bar x = \frac{\sum x}{n}[/tex]
[tex]\bar x = \frac{59 +95 +116+ 143+ 156+ 225+ 271+ 366+ 495 +696+ 851+ 1060+ 1140 +1101+ 1202}{15}[/tex]
[tex]\bar x = \frac{7976}{15}[/tex]
[tex]\bar x = 531.73[/tex]
The median is calculated using:
[tex]Median = \frac{n+1}{2}th[/tex]
[tex]Median = \frac{15+1}{2}th[/tex]
[tex]Median = \frac{16}{2}th[/tex]
[tex]Median = 8th[/tex]
The 8th item is: 366
So:
[tex]Median = 366[/tex]
(c) The claim by the public health worker is true.
To do this, we simply compare the mean value of both types.
For Type A
[tex]\bar x = 2145.47[/tex]
For Type B
[tex]\bar x = 531.73[/tex]
The claim is:
[tex]Type\ A > 2 * Type B[/tex]
[tex]2145.47 > 2 * 531.73[/tex]
[tex]2145.47 > 1063.46[/tex]
Since the inequality is true, then the claim is true
If 4x-4y=-10 is a true equation,what would be the value of 4x-4y+9
Answer:
-1
Step-by-step explanation:
4x - 4y = -10
4x - 4y + 9 = -1
Which ordered pair is the solution of the system
graphed below?
last one for todayy lolz
Answer:
A
Step-by-step explanation:
A, to reflect in the y axis we take the negative x value and keep the y the same.
if my answer helps please mark as brainliest.
The function g(t) = - 16t2 + vt + h represents the height of an object, g, in feet, above the ground in relation to the time, t, in seconds, since the object was thrown into the air with an initial velocity of v feet per second at an initial height of h feet.
A model rocket is launched off the ground at an initial velocity of 80 feet per second.
Part A: Write a function that can be used to describe the flight of the model rocket.
Answer:
g(t)= -16t^2 +80t
Step-by-step explanation:Should be
A function is a relationship between inputs where each input is related to exactly one output.
The function that can be used to describe the flight of the model rocket is
g(t) = -16t² + 80t.
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
Example: f(x) = 3x + 1 is a function
x = 1, f(1) = 3 + 1 = 4
We have,
A function that represents the height of an object.
g(t) = -16t² + vt + h
t = time in second
v = Initial velocity per second
h = Initial height
Initial velocity:
v = 80 feet per second
A model rocket is launched off the ground.
This means,
h = 0
Now,
Putting v = 80 and h = 0
g(t) = -16t² + vt + h
g(t) = -16t² + 80t + 0
g(t) = -16t² + 80t
Thus,
The function that can be used to describe the flight of the model rocket is
g(t) = -16t² + 80t.
Learn more about functions here:
https://brainly.com/question/28533782
#SPJ6
For a reading contest, a teacher awards 11 gold stars for every 22 book read.
Answer:
22×2=44
33×2=66
44×2=88
55×2=110
Answer:
^Refer to explanation:
Step-by-step explanation:
11 gold stars = 22 books
1 gold star = 22 ÷ 11 = 2
22 gold stars = 2 x 22 = 44 books
33 gold stars = 2 x 33 = 66 books
44 gold stars = 2 x 44 = 88 books
55 gold stars = 2 x 55 = 110 books
Which option best describes the likelihood of Jennifer picking a green ball
Can someone HELP ME please!!?
Answer:
Option 1
Step-by-step explanation:
combine like terms to make a simple Hi, equivalent expression: 14-3+8x+7x
Answer:
11+15x
Step-by-step explanation:
combine 14 - 3 and 8x + 7x = 11 + 15x
please help me
I need help bad
Answer:
C)
Step-by-step explanation:
I hope this helps :)
For his long distance phone service, Ryan pays a $6 monthly fee plus 8 cents per minute. Last month, Ryan's long distance
bill was $18.64. For how many minutes was Ryan billed?
Answer:
15.8 I think
Step-by-step explanation:
18.64 - 6 = 12.64
0.8 times 15.8 is 12.64 so I think 15.8
every 7 days during the week, Dan sleeps 36 hours. How many days would it take him to sleep 144 hours. Mia sleeps 48 hours every 8 days.Does mia or Dan have a greater days to hours to sleep ratio?
Answer:
1. 28 days
2. Mia
Find the mean, median, mode, and range for each set of data 21.5, 35.5, 49.5, 16.3, 35.5
Answer:
Mean :31.66
Median:35.5
Mode:35.5
Step-by-step explanation:
(hope this helps can i plz have brainlist :D hehe)
convert 135 degrees into radians
Answer:
135° = 2.355 radStep-by-step explanation:
π rad = 180°1° = π/180 rad135° = 135π/180° rad135° = 135*3.14/180 rad135° = 2.355 rad$924 at 10.4% for 30 months
What is the distance between the points(-2, 1) and (1, 3)? Round answer to the nearest tenth.
Answer:
.
Step-by-step explanation:
Please smart people
Consider the graph of a unit circle and a point traveling along the circumference of the circle. Which
statement is true?
O A. The point travels a distance of about 6 units in one revolution around the circle.
B. The point travels a distance of about 1 unit in one revolution around the circle.
O C. The point travels a distance of about 3 units in one revolution around the circle.
D. The point travels a distance of about 2 units in one revolution around the circle.
At the end of August, a store is
trying to get rid of their swimsuits to
make room for fall clothes The
price of a swimsuit is reduced $5
each week for 6 weeks By how
much did the price of the swimsuit
change during this time?
Answer:
Week one: 5$ off
Week two: 10$ off
Week three: 15$ off
Week four: 20$ off
Week five: 25$ off
Week six: 30$ off
30-5=25 There is a 25 dollar difference from week one and week six
Step-by-step explanation:
Complete each calculation using the distributive property.
The table shows interest owed for a home improvement loan based on how long it takes to pay off the loan.
a. How much more interest is owed on $900 (ignore the AED) for 9 months than for 6 months?
b. Does the interest rate increase at a constant rate?
(Please answer quick! Don't go to other answers and copy and paste or put something that isn't even about this, I really need help! Thank you.)
Answer:
its soooooooo long make it shorter i need toknow it shorter
Step-by-step explanation:
If the original parabola f(x) = x2 were transformed into f(x) = 4(x - 3)2 +1, what changes took place?
А
The parabola would be vertically stretched by a factor of 4, translated right 3 and up 1.
B
The parabola would be vertically compressed by a factor of 4, translated right 3 and down 1.
С
The parabola would be vertically stretched by a factor of 4, translated left 3 and up 1.
D
The parabola would be vertically compressed by a factor of 3, translated left 3 and down 1.
Answer:
A
Step-by-step explanation:
Plz answer will give brainliest if correct
Answer:
The answer is A.
Step-by-step explanation:
there are 5 more than twice as many students taking Algebra 1 then taking algebra 2. If there are 44 students taking Algebra 2, what is the least number of students who could be taking Algebra 1? The least number of students is?
Answer:
93
Step-by-step explanation:
Key :
A1 = Algebra 1
A2 = Algebra 2
Alright so basically lets first look at the info they gave us :
We have 5 more than twice as many students taking A1 than we do A2.
We have 44 students taking A2.
And we need to find the least amount of students that could be taking A1.
So we need to take the amount of students taking A2 (44) and double it to find the amount taking A1.
So we can do 44 x 2 = 88 to get this.
But the problem also states there is 5 more then twice the number of students taking A2.
So we have that 88 but now we just need to add 5 to make up for them telling us that in the problem.
So :
88 + 5 = 93
Our final answer and least amount of students taking A1 is 93 students.
Answer:
93 students
Step-by-step explanation:
44 x 2 = 88
88 + 5 = 93
Find the value of the expression below for x=10
x ^2 - 2 (x + 5)
Answer:
20
Step-by-step explanation:
your welcome!!
Srry but I need help with this
comparing their candy haul. If Sullivan got s number of pieces and Carter got 2s,
what does that tell you about the relationship between the amount of candy they
each had?
Answer:
.....
Step-by-step explanation: