Answer: By finding the differences between the y-values, we can determine the degree of the model for the data.
If the first difference is the same value, the model will be linear.
If the second difference is the same value, the model will be quadratic.
Step-by-step explanation:
If 80 students were surveyed, how many
preferred math?
Answer: 12 students preferred math
Step-by-step explanation:
Take this equation
80(n)
n will equal (0.15) for the 15% surveyed who preferred math
80(0.15)
12
A cargo plane flew from the US across the Atlantic at 280 mph, and flew back to the US at 300
mph. Given that the first trip took two hours longer, how long was the return trip?
Answer:
Step-by-step explanation:
300t=280(t+2)
300t=280t+560
20t=560
t=28
Cam, Yusef, and Spencer have resolved to drink more water each day. The recommended amount of water per day is 64 ounces.
a. Cam has 10% of the recommended amount of water left to drink before bed. How many ounces of water does she need to drink to reach her goal? Show your work and/or explain your reasoning.
9514 1404 393
Answer:
6.4 ounces
Step-by-step explanation:
10% of 64 ounces is ...
0.10 × 64 = 6.4 . . . . ounces
Cam needs to drink 6.4 ounces to reach the recommended amount.
The sum of 3 times a number and 6 equals 7.
Answer:
3n + 6 = 7
Hope this helps!
Answer:
3 * n + 6=7
3n+6=7
Step-by-step explanation:
uh khakis
Can you help me with this one to
Answer:
3 and 5 but i dont know what number goes in what picture so just try then try the other way round if its wrong
Step-by-step explanation:
Answer:
Purple Diamond = 2 Green Moon = 7.5 Pink Trapezium = 30
Step-by-step explanation:
T = Pink Trapezium
D = Purple Diamond
M = Green Moon
Line 1 = T = 30 x 1 = 30
Line 2 = (D x D) x (M) = (2x2) x (7.5) = 4 x 7.5 = 30
The key is the weight of the line multiples to 30
Just like graphs do with x/y
If x is horizontal then y is vertical
= x/y we get the gradient which is the same as division or dividing 30/30 = 1 being the base weight amount
and same as 30/7.5 = 4 and simplifying 4 to (2 x 2)that means an easier way to see the number of (2x2) being the base weight = 1 x 2 then 1 x 2 then as we have found 4 its simplification we can divide it into 30 to show 30/4 = 7.5 for the Moon or for (M) above.
The 4 number is simplification and (+ 2 )(+ 2) is its factorization before it turns to 30 to show 30 = (2 x 2 x 7.5) or 2^2 x 7.5 = 30. Etc. Etc.
A social networking site currently has 28,000 active members per month,
but that figure is dropping by 5% with every month that passes. How
many active members can the site expect to have in 2 months?
pease help me i really need this
Answer:
2:140
1:70
Step-by-step explanation:
:)
. The coordinates of a rectangle are (4,2), (4,-3), (-2, -3) and (-2, 2). In square units, what is the area of this rectangle? units
Answer:
24 units^2. :)
t/3+9=12 what does this mean in algerba
Answer:
t=9
Step-by-step explanation:
subtract 9 from both sides
t/3=3
t=9
Mary is buying a case of water. She spends $7.99 for a case of 24 bottles. What is the unit rate? (Cost for 1 bottle) *
Answer:
so I'm not 100% sure but in these types of questions you are supposed to divide
so you have a pack of 24 bottles for 7.99
so you would do 7.99÷24 = 0.33
then to check it you can multiply
0.33× 24 bottles and it gives you 7.93 which is super close to 7.99 anyway I hope this helps ...
what are the next 3 numbers in this pattern?
24, 17, 10, 3, -4
**if could, please tell me how you found those numbers**
Help me ? Pleaseeeee ??!!!
Answer:
57
Step-by-step explanation:
if 1 = 123 degrees, and the angles add up to 360, then 6 would be 57. Because you would do 123 is 5 and 8, and so 246 is adding those angles. So now you have 7 and 6. 360 - 246 is 114, and since 7 and 6 are equal, just divide that by 2
Write the series using summation notation.
-2 +4-8 + 16 - 32
Answer:
Σ (-2)^n
n=1
Hope this helps
What is the simplified form of the following expression?
(N^5)(N^2)
1. N^25
2. N^10
3. N^7
4. N^3
Answer:
3
Step-by-step explanation:
same base multiplying, you add exponents
Answer:
3. N^7
Step-by-step explanation:
When we multiply N^5 and N^2 we keep the base of N and add 5 and 2. Giving us N^7
Find the range of values for which
x2 - 6x + 8 < 0
Answer:
Step-by-step explanation:
Factor
x^2-6x+8<0
(x-2)(x-4)<0
For this to be less than zero the factors must have opposite signs.
x>2 and x<4
2<x<4
So x is all real numbers between 2 and 4 or in interval notation
x=(2,4)
Write the equation of the line in fully simplifoed slope intercept form
Answer:
y = -⁵/₃x + 8Step-by-step explanation:
The equation of the line in slope-intercept form: y = mx + b, where m is a slope and b is y-intercept
Slope of line that passes through two given points: [tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
(0, 8) ⇒ x₁ = 0, y₁ = 8
(3, 3) ⇒ x₂ = 3, y₂ = 3
[tex]\bold{m=\dfrac{3-8}{3-0}=\dfrac{-5}3=-\dfrac53}[/tex]
b = 8
Therefore the equation: y = -⁵/₃x + 8
The function table below represents the linear function y = 4x – 3. Which answer represents the outputs of the function table
Answer:
Here we can not see the options, so i will answer in a general way.
When we have a function y = f(x), we define:
x as the input
y as the output.
so f(x) is some kind of "machine", in wich we put an input x, and the "machine" does something and returns an output y.
In, this case, we have:
y = f(x) = 4*x - 3
then if we give this function different inputs, we will get different ouputs.
for example, if we use the input x = 0, then the output is:
y = f(0) = 4*0 - 3 = -3
Then if we made a table for inputs and outputs, we will have the data:
[tex]\left[\begin{array}{ccc}inp&out\\x&y\\0&-3\end{array}\right][/tex]
We can rewrite this table in a general way as:
[tex]\left[\begin{array}{ccc}inp&out\\x&4*x - 3\end{array}\right][/tex]
This means that for every input x, the output is always 4*x - 3.
To complete this type of tables, we usually use different values of x, for example here I will use some different ones:
y = f(3) = 4*3 - 3 = 12 - 3 = 9
y = f(10) = 4*10 - 3 = 40 - 3 = 37
y = f(-1) = 4*-1 - 3 = -4 - 3 = -7
Then we will have a table like:
[tex]\left[\begin{array}{ccc}inp&out\\3&9\\10&37\\-1&-7\end{array}\right][/tex]
Concluding, the thing that will always represent the output of our function is: 4*x - 3.
Can someone please help?
Answer:
JUST USE THE CALCULATOR DUHHH!!!
Which value is MEAN of the data set?
A)
480
B)
485
500
D)
The MEAN cannot be determined from the available information.
Answer:
500
Step-by-step explanation:
I believe the answer is D) The mean cannot be determined from the available information.
The mean in math means the sum of all the numbers divided by how many numbers there are. There is no information about how many numbers there are nor any information of which numbers exist and which numbers don't.
The data set only tells us the first number, last number, and median-- things a box-and-whisker plot would tell us; perhaps a different way of representing data would work better to help us find the median like a dot plot or a bar graph.
If this is incorrect, please, don't refrain to tell me. Thank you.
Please help asap due in 30 mins please be proper.
Answer:
18sqrt5 or 40.249
Step-by-step explanation:
by pythagorean theorem
Hypotenous^2=altitude^2+base^2
c^2=a^2+b^2
c^2=(18)^2+(36)^2
c^2=324+1296
c^2=1620
taking sqrt root
c=18sqrt5=40.249
Answer:
in right angled triangle BCD
by using Pythagoras law
P²+B²=H²
A²+B²=C²
36²+18²=x²
x=√1620=18√5m
x=18√5 m is your answer
Select the correct volume formula for a cone.
Answer:
1/3 pie r square h ( 2nd option)
Step-by-step explanation:
Which expression is equivalent to – 2( –8v – 4)+6v?
Answer:
-2(-11v-4)
Step-by-step explanation:
Monica worked 3.5 hours and is paid $10 per hour. How much did she make in 3.5 hours?
Answer:
She would make $35.
Step-by-step explanation:
If you do 10 x 3.5, you will get the answer of $35.
Answer:
$30
Step-by-step explanation:
She would be getting paid by the HOUR, and she has worked 3.5 hours. If she gets paid every HOUR, that means that she would be paid three times when working 3.5 hours. The answer would be $30.
The person who wrote the question might want $35 dollars as the answer, but logically the answer should be $30.
need help ASAP !!!
[tex] \sqrt{684 \times 684} [/tex]
Answer:
√(684×684)=√684²=±684
The bill for car repairs is $425 for parts and labor. The cost of parts is $226 and labor is $36.00 per hour. If h represents the number of hours of labor, which equation can you use to find the number of hours of labor?
Group of answer choices
226 = 425 – 36h
226(h + 226) = 425
36 + 226h = 425
36h + 226 = 425
Answer:
the third one
Step-by-step explanation:
36+ 226h=425, I hope this helps:)
The total bill for drinks and a pizza for three people is $14.90 before tax. The group wants to leave a 15% tip on the cost of the food, not including tax. What will be the amount of the tip?
Answer:
$2.24
Step-by-step explanation:
Since we are trying to find a percentage of something, we can multiply whatever we're trying to find a percentage from by 0.X where X is equal to the number of the percentage. So in this case it's 15%. We can multiply $14.90 by 0.15 and we get 2.23500. Since we cannot have 2.235 dollars, we must round up decimal places.
The tip would be 2 dollars and 24 cents. ($2.24).
need help ASAP !!!
[tex] \sqrt{6854 \times 6854} [/tex]
Answer:
√{6854×6854}=√6854²=±6854 is your answer
Answer:
[tex]±6854 [/tex]
Step-by-step explanation:
[tex] \sqrt{6854 \times 6854} [/tex]
[tex] \sqrt{ {6854}^{2} } [/tex]
[tex]±6854 .[/tex]
Find the percent increase. Round to the nearest percent. From 82 books to 144 books The percent increase is
Answer:
Step-by-step explanation:
56%
what is 1/10 (3n+50)=35?
Answer:
100
Step-by-step explanation:
1/10(3n+50)=35
3n+50=35*10
3n+50=350
3n=350-50
3n=300
n=300/3
n=100
Name the marked angle in 2 different ways.
Answer:
acute is one of the i hope this helps