True or False
A proportional
relationship can have a
positive or negative unit
rate.
Answer:
True
Step-by-step explanation:
As long as the relationships are the same they are proportional.
I need help brainliest
Answer: Answer is B
Step-by-step explanation: I hope it help
;)
Answer:
It is y= -3x + 2
Step-by-step explanation:
If you plug the x value into the equation, it make sense.
y= -3 (2) + 2 is equal to -6 + 2 which is -4
and so on..
Is 54.5% a passing grade?
Answer:
yes 54.5 is passing a grade
Step-by-step explanation:
Answer:
Step-by-step explanation:
no 54.5% is not passing... and the lowest you can have and still pass is 59%... well if you consider a D passing
Which is the measure of the reference angle for 227?
a. 35
b. 23
c. 47
d. 43
Answer:
c
Step-by-step explanation:
227° is in the third quadrant. To find the reference angle subtract 180° from it.
reference angle = 227° - 180° = 47° → c
Hm anyone out there to help?
Answer:
i say 2
Step-by-step explanation:
i may be wrong
sorry:(
Answer:
Its 2 I think
hiiii! as soon as you see this! answer it pleaseee
16.What is the ( y) intercept of a line given: y= x - 6
Answer:
-6 is the answer.
Step-by-step explanation:
SO to do this:
given y=x-6
plug in 0 for x and solve for y
y = 0-6
y= -6
Answer:
the answer is 6 if I had time to explain how I got this but I have to walk my dog after put my phone down then watch tv sorry for the extra stuff.
Step-by-step explanation:
Plz help, thank you!!!
Find the Mean for 15 points
Hello there!
Mean is the average of a set of numbers.
To find the mean, we have to add all the numbers and divide by how many there are.
Add: 68 + 55 + 72
Equals: 195
However, we have to find the mean of the 3 rounds in the 4th fight.
Add: 55 + 42 + 40
Equals: 137
Then, we divide it by 3.
Equals: 45.7
Next, add it to 195 since it was of 3 separate fights.
195 + 45.7 = 242.5
Lastly, divide it by 6 since there were 6 numbers in the data set.
Divide: 242.5/6
Equals: 40.42
Therefore, our mean for the 4 fights is 40.42 or 40.
There's another answer that we can get by simply adding up all the numbers and dividing it by 6.
Add: 68 + 55 + 72 + 55 + 42 + 40
Equals: 332
Then, we divide by 6.
Divide: 332/6
Equals: 55.33
So, yeah 55.33 would be the better mean then 40 since 40 makes it seem very low.
Answer:
Mean x¯¯¯ 55.333333333333
Median x˜ 55
Mode 55
Range 32
Minimum 40
Maximum 72
Count n 6
Sum 332
Step-by-step explanation:
All you have to do is add all the number together and divide.
Also i put more info encase you need it
hope this helps!:)
What is the y-intercept of the function f(x)=4-5x?
-5
-4
04
5
Answer:
y-intercept(s): 0,4
Step-by-step explanation:
find the x-intercept, substitute in
0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y
A fruit bowl contains apples, oranges, and bananas. The radius of one of the oranges is 1.45 inches What is the approacimate
volume of the orange? Use 3.14 for
hhhhhhheeeeeeeeeeeeeelllllllllp
It's A, 1/5^9.
Ya take the two exponents, and subtract them. Now ya have 5^-9/5.
Since we can't have a negative exponent, we put it on the bottom.
So we get the answer 1/5^9. Hope this helps!
Answer:
1/5^9
Step-by-step explanation:
5^-6 goes down and become 5^6
then 5^3 is times 5^6, when multiplying two same bases their power has to be added not multiplied. so 6 plus 3 is 9. the nine is the power.
the final answer is 1/5^9 or the first choice
answer this question and i will mark you as brainliest trust me i pormise
Answer:
.
Step-by-step explanation:
A big cruise ship dropped anchor off the caribbean island of Antigua. The heavy anchor dropped into the water at a rate of 2.5 meters per second. After 45 seconds, the anchor was 40 meters below the waters surface
Answer:
72.5 meters
29 seconds
Step-by-step explanation:
Geometry question #19
Answer:you still on it ?
Step-by-step explanation:
A level differentiation question. Mainly stuck on the 4-x/x part. Help would be appreciated.
Answer:
see explanation
Step-by-step explanation:
Differentiate [tex]\frac{4-x}{x}[/tex] using the quotient rule, given
y = [tex]\frac{f(x)}{g(x)}[/tex] , then
[tex]\frac{dy}{dx}[/tex] = [tex]\frac{g(x)f'(x)-f(x)g'(x)}{g(x)^2}[/tex]
Here f(x) = 4 - x ⇒ f'(x) = - 1
g(x) = x ⇒ g'(x) = 1 , thus
[tex]\frac{dy}{dx}[/tex] = [tex]\frac{-x-(4-x)}{x^2}[/tex] = [tex]\frac{-x-4+x}{x^2}[/tex] = - [tex]\frac{4}{x^2}[/tex]
-----------------------------------------
Given
y = 3x² + [tex]\frac{4-x}{x}[/tex], then
[tex]\frac{dy}{dx}[/tex] = 6x - [tex]\frac{4}{x^2}[/tex] ← evaluate for x = 2
[tex]\frac{dy}{dx}[/tex] = 6(2) - [tex]\frac{4}{4}[/tex] = 12 - 1 = 11 ← as required
Let me know if you require assistance on (b) and (c)
If ABC= AMNO and AMNO= APQR, then ABC= APQR by the transitive
property
8
E
A
N
0
O
P
R
A. True
B. False
Answer:
True
Step-by-step explanation:
It's true by the transitive property of equality which is
If A=B and B=C then A=C
Georgetown Auto Repair Originally paid its mechanics $50 per hour. Now thay there is a new owner, the mechanics make 30% less. How much do the mechanics make per hour now?
Answer:
35
Step-by-step explanation:
PLEASE NEED HELP WITH THIS
Answer:
y=4x
Step-by-step explanation:
In a proportional relationship, two values always have the same ratio to each other. This means that when we look at the equation of a line, y=mx+b, where m=slope and b=how much more plus the slope y is, there cannot be a "b" value.
An example of this is:
If the slope is 3,
y=3x
If x=2, y=6
If x=5, y=15
We can see that for every pair of coordinates, the ratio (5) between x and y remain the same.
y cannot have anything added to i (ex: y=3x+1), otherwise the ratio would change.
Ex:
If the equation is y=3x+1,
If x=1, y=4
If x=2, y=7
We can see that the ratios between the two numbers (1/4, 2/7) are not the same.
In this problem, the only equation without "b" is y=4x. Therefore, the answer is y=4x.
brainliest whoevr help out!!!! plzzzzzzz
1. Change the standard form equation into slope intercept form, then name the slope and the y- intercept.
2x-3y=12
2. What is the slope of the line represented by the equation
Y=(2/3)x-4?
A. 4
B. 2/3
C. -4
D. -2/3
Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
2x - 3y = 12 ( subtract 2x from both sides )
- 3y = - 2x + 12 ( divide all terms by - 3 )
y = [tex]\frac{2}{3}[/tex] x - 4 ← in slope- intercept form
with slope m = [tex]\frac{2}{3}[/tex] and y- intercept c = - 4
2
The line y = [tex]\frac{2}{3}[/tex] x - 4
has slope m = [tex]\frac{2}{3}[/tex] → B
Answer:
11.slope intercept form:
y=2/3x-4
2. slope;
2/3
Step-by-step explanation:
1. make y the subject
2. =mx+c
m is the slope therefore 2/3 is the slope
find the value of x help plz
Answer:
59
Step-by-step explanation:
Since b and the angle with measure 31 must add up to 90, you can set up the following equation.
b+31=90
b=90-31
b=59 degrees
Hope this helps!
Answer: 59 degrees
Step-by-step explanation:
Since it is a 90-degree angle all you do is subtract 90 from 31 and get 59.
The line plot below shows the lengths of bolts Mr. Slivka found in his drawer. He needs 16 bolts that are longer than 1 inch for a project he is working on. Does he have enough bolts for his project? A line plot named A. Yes. There are 16 bolts that have lengths greater than 1 inch, which is just enough. B. Yes. There are 18 bolts that have lengths greater than 1 inch, which is more than enough. C. No. There are only 3 bolts with lengths greater than 1 inch, which is not enough. D. No. There are only 12 bolts that have lengths greater than 1 inch, which is not enough
Answer:
D No. as there are only 12 bolts longer than 1inch.
Mr. Slivka needs 16 bolts of greater than 1 measure, and there are only 12.
Step-by-step explanation:
We cannot include 1 inch data as this is not over 1 inch like the 1inch 2/8 and 1inch 4/8 etc. the greater measures of over 1 inch count to 12.
We know they are greater as they do not have a negative sign next to the added fraction of 1 2/8 or 1 4/8.
Answer:
D
Step-by-step explanation:
I HAVE NONE
what is the answer for this
Answer:
Grids b and c have 25% shaded
Step-by-step explanation:
a) shaded = 5/16 = 31.25%
b) shaded = 4/16 = 25%
c) shaded = 5/20 = 25%
d) shaded = 3/10 = 30%
Answer:
grid b and c
Step-by-step explanation:
Find THe QUADRATIC equation 100 POINTS PLS HELP: (0,6),(1,6.5),(2,8),(3,10.5),(4,14)
Answer:
y = 1/2x^2 +6
Step-by-step explanation:
The quadratic regression function of a calculator or spreadsheet is useful for this purpose. It shows you the equation is ...
y = 1/2x^2 +6
_____
Alternate solution
Another way to approach this is to look at first and second differences of the y-values.
Sequence of y-values:
6, 6.5, 8, 10.5, 14
Sequence of first differences:
0.5, 1.5, 2.5, 3.5
Sequence of second differences:
1, 1, 1, 1
The leading coefficient of the quadratic is half the value of the second differences: a = 1/2. The constant in the quadratic is the y-intercept, the value when x=0. The first point gives that as 6.
__
Now, you can check some other point to see what the linear term coefficient might be:
y = 1/2x^2 +bx +6
For x=2, this is ...
8 = 1/2(2^2) +b(2) +6 = 8 +2b . . . . . substitute (x, y) = (2, 8), simplify
0 = 2b ⇒ b = 0
Then the quadratic is ...
y = 1/2x^2 +6
_____
Additional comment
You may not know the relation between second differences and the leading coefficient. The most general way to solve this is to write three equations in the unknown coefficients. Since y has integer values for x=0, 2, 4, you may want to use these. For (x, y) = (0, 6), (2, 8), and (4, 14), you have ...
y = ax² +bx +c
6 = 0a +0b +c8 = a(2²) +b(2) +c14 = a(4²) +b(4) +cAfter finding c=6 in the first equation, you have two equations in 2 unknowns:
2 = 4a +2b ⇒ 2a +b = 18 = 16a +4b ⇒ 4a +b = 2The solution to these is a=1/2, b=0, as above.
The sum of two numbers is 73. When the smaller number is subtracted from twice the greater number, the result is 50. Find the numbers. Please use a let statment and an algebraic solution. Thanks! :)
Answer:
The big number is 41 and the small number is 32.
Step-by-step explanation:
b + s = 73
2b - s = 50 Add these equations together
3b = 123 Divide both sides by 3
b = 41
Now plug this into the first equation to find s
41 + s = 73
-41 - 41
s = 32
a wooden toy block is in the shape of a cylinder. the toy block has a height of 4 inches and a diameter of 3 inches. how much does the toy block weigh if 1 cubic inch of wood weighs 0.55 ounces? round to the nearest tenth.
Answer:
Step-by-step explanation:
2x^2-10x+7 A=1, B=-10. C=7
-(-10)±√-10^2-4(1)(7)
------------------------------
2(1)
10±√100-28
----------------
2
10±√72
-----------
2
10±8.485281374
2
10+8.485281374 =9.24
10-8.485281374 =0.76
2
Weight of wood block is 15.543 ounces.
Volume of cylinder:Given that;
Height of block = 4 inches
Diameter of block = 3 inches
1 cubic inch of wood = 0.55 ounces
Find:
Weight of wood block
Computation:
Radius of block = 3 / 2
Radius of block = 1.5 inches
Volume of toy = πr²h
Volume of toy = (3.14)(1.5)²(4)
Volume of toy = (3.14)(2.25)(4)
Volume of toy = 28.26 cubic inch
Weight of wood block = Volume of toy × 0.55 ounces
Weight of wood block = 28.26 × 0.55 ounces
Weight of wood block = 15.543 ounces
Find out more information about 'Weight of wood'.
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Q12 A driver sees this speed limit sign in France. The speed is in kilometres per hour
130
He is driving at 80 miles per hour.
mile
He thinks this is below the speed limit.
1 kilometre =
Is he correct? Explain your answer showing your calculation.
Decision (tick one box) yes
Explanation
no
Answer:
Step-by-step explanation: idk
PLEASE HELP ME with this question!!
Answer:
b) x=13
Step-by-step explanation:
first divide 10 by 2 to get the base of one side of the triangle
the answer will be 5
Then using the Pythagorean theorem
a2+b2=c2
12^2+5^2=169
the square root of 169 will be 13
PLEASE HELP ILL GIVE BRANLIEST!!! ( and 50 points! )
Robert has a collection of nickles, dimes, and quarters. The total value of the coins is $8.50. He has 3 times as many nickles as dimes, and 10 more quarters than dimes. How many of each coin does he have.
Answer:
As we know:
A nickle is worth 5 cents.
A dime is worth 10 cents.
A quarter is worth 25 cents.
Here is what Robert had:
Number of nickles (a)
Number of dimes (b)
Number of quarters (c)
Here is assumption:
5a + 10b + 25c = 850
a = 3b
c = b + 10
=> 5(3b) + 10b + 25(b + 10) = 850
=> 50b + 250 = 850
=> 50b = 600
=> b = 600/50 = 12
=> a = 3b = 3 x 12 = 36
=> c = b + 10 = 12 + 10 = 22
=> Number of nickles: 36
=> Number of dimes: 12
=> Number of quarters: 22
Hope this helps!
:)
the question was long so its in 2 pictures but please help me figure it out
Answer:
the answer is the fourth row
Answer:
hi! the answer is row four.
Step-by-step explanation:
it contains 14, 7, 2, -7, and -14
14 and -14 are opposite integers
&
7 and -7 are opposite integers
so, the row that has opposite integers would be row four.