Answer:
4
Step-by-step explanation:
Rate of change is just slope, based on what I know.
Given 2 points : (x1, y1) and (x2, y2)... The slope would be [tex]\frac{y_{2}-y_{1} }{x_2-x_{1}}[/tex].
So for this problem we need to find the slope:
(1,15) and (-2,3) are the points. To find slope we do [tex]\frac{3-15}{-2-1}[/tex]. This simplifies into [tex]\frac{-12}{-3}[/tex].This then simplifies into 4.The rate of change is 4 based on my work.
MARKING BRAINLIST!
Add (11x + 2) + (9x − 4).
F. 20x − 6 G. 20x − 2 H. 2x − 6 I. 2x − 2
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP SHOW YOUR WORK
Answer:
Step-by-step explanation 121 is the answer and it doesn't let me show work.
please help me before i fail!! Find the solution(s) of the following equation.
c^2 = 144/169
Choose all answers that apply:
A) c = 12/13
B) c = -12/13
C) c = 14/15
D) c = -14/15
E) None of the above
Answer: A or B but really A
Step-by-step explanation:
c² = 144/169
√c² = √144/169
c = 12/13
or
-12/13² = 144/169
Hope that helped! I recommend choosing A
The solutions to the equation c² = 144/169 are c = 12/13 and c = -12/13, as they satisfy the equation when substituted into it. Thus, options A and B are the correct answers.
The equation is given as follows:
c² = 144/169
To find the solutions of the equation c² = 144/169, we can take the square root of both sides of the equation.
√(c² = ±√(144/169)
Since the square root of a number can be positive or negative, we have two possibilities for the solutions:
c = ±√(144/169)
Simplifying the square root of 144/169 gives:
c = ±(12/13)
So, the solutions to the equation are:
A) c = 12/13
B) c = -12/13
Therefore, options A and B are the correct answers.
Learn more about the equations here:
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How do you estimate the mean? please help
Answer:
move the anomalous results
numbers that don go or are not similar to the other numbers
add the numbers and divide by how many numbers you added
3. Which of the relations below is not a function?
A. {(2,7), (4, 13), (6, 19), (8, 25)}
B. {(5,2), (7,2), (9,2), (11, 2)}
C. {(3, 1), (3, 4), (3,9), (3, 16)}
D. {(-8, 8), (-7, 7), (-6, 6), (-5,5)}
Answer:
I think it's D, I'm not really sure, but that's my best answer.
Step-by-step explanation:
None.
They each have a brother who weighs 40 units. Whose brother weighs 40 pounds, and whose
weighs 40 kilograms? Explain your reasoning,
7 qt. of a 27% saline solution was mixed
with 3 qt. of a 17% saline solution. What
is the concentration of the mixture?
Answer:
24% saline
Step-by-step explanation:
Find how much saline is in both solutions:
7(0.27)
= 1.89
3(0.17)
= 0.51
Add this together:
1.89 + 0.51
= 2.4
Since there are 10 quarts in total, the concentration of the mixture can be found by dividing 2.4 by 10:
2.4/10
= 0.24
So, the concentration of the mixture is 24% saline
X+4y=3
-5x - 20y = –15
A) what is the solution?
B) please explain with work shown, how you know your solution in part A is correct.
Answer:
Multiply (1) by 5.
5x+20y=15
-5x-20y=-15.
Add
0=0.
Infinetly many solutions.
I know this is correct because if i do -(-5x-20y=-15)
it will be 5x+20y=15 which is the same as (1)
Hope this helps plz hit the crown :D
Answer:
sorry but it is undefined
4s*2+7s+2=0 Quadratic formula
Answer:
z=−215z=-215
Step-by-step explanation:
z=−215z=-215
if <3 and <4 are vertical angles and m<3=9x+5 and m<4=5x+33 find <4
Answer:
68 degrees
Step-by-step explanation
If <3 and <4 are vertical angles, then <3 = <4
This means that
9x + 5 = 5x + 33
9x - 5x = 33 - 5
4x = 28
x = 28/4
x = 7
Since <4 = 5x+ 33
<4 = 5(7) + 33
<4 = 35 + 33
<4 = 68 degrees
Hence the measure of <4 is 68 degrees
Write the equation in standard form
ax + by = C
y=3x+7
HELP NOW!!!!
Solve the equation | z - 12 = 9
Answer:
21
Step-by-step explanation:
21-12=9
Answer:
z - 12 = 9
z = 9+12
z=21
Scott has a stamp collection. The graph below shows
how many stamps there are from each country. How
many more are there from France than from Germany?
Scott's stamp collection
Germany
59
Spain
53
France
75
England
A
16
B
134
118
18
There are 16 more stamps from France than Germany.
Option A is the correct answer.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Scott's stamp collection:
Germany = 59
Spain = 53
France = 75
The difference between the number of stamps between Germany and France.
= 75 - 59
= 16
Thus,
There are 16 more stamps from France than Germany.
Learn more about expressions here:
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What is the x-value at which the graphs of y = x2 – 2x + 1 and y = x2 + 2x – 7 inter-
sect?
Answer:
x = 2
Step-by-step explanation:
Both equations are equal to y, so they're also equal to each other. We then set them equal to each other:
x^2 - 2x + 1 = x^2 + 2x - 7
We now do algebra to isolate x. Subtract 1 from both sides.
x^2 - 2x = x^2 + 2x - 8
Subtract 2x from both sides.
x^2 - 4x = x^2 - 8
Subtract x^2 from both sides.
-4x = -8
Divide both sides by -4.
x = 2
Melissa makes and sells necklaces and bracelets. One day she made a total of 28 pieces of jewelry. On this day the number of bracelets crafted was 4 more than twice the number of necklaces.How many of each type of jewlery did she make that day
Answer:
Number of necklaces = 8
Number of bracelets = 20
Step-by-step explanation:
Given that:
Mellisa is making and selling the necklaces and bracelets.
Number of pieces of jewelry made on one day = 28
Number of bracelets was 4 more than the twice the number of necklaces.
To find:
Number of each type of jewelry made = ?
Solution:
Let number of bracelets = [tex]b[/tex]
Let number of necklaces = [tex]n[/tex]
As per question statement:
[tex]b+n=28[/tex] ...... (1)
[tex]b = 2n+4[/tex] ...... (2)
Putting the value of [tex]b[/tex] in equation (1):
[tex]2n+4+n=28\\\Rightarrow 3n = 28-4\\\Rightarrow 3n = 24\\\Rightarrow n =\bold{8}[/tex]
By equation (1):
[tex]b + 8 =28\\\Rightarrow b = \bold{20}[/tex]
So, the answer is:
Number of necklaces = 8
Number of bracelets = 20
let h (x) represent the height of a bridge at x feet from the start of the bridge. what does h (32) represent?
Answer:
It is the third one.
Step-by-step explanation:
Since the question is asking us that h(x) represents the height of the bridge the answer can be determined.
Help please this is due in a few minutes will mark brainlest
Answer:
A and B
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
Will give brainless if you answer now .
Put all angles in order from largest to smallest .
The Pythagorean theorem is a2+b2=c2. Solve for b.
Answer: what is a and c
Step-by-step explanation:
We need a and c to solve for b.
4) Find mZJIH.
A) 160°
C) 150°
B) 123°
D) 103
Answer:
150 (i think)
Step-by-step explanation:
The Garcia family started the day with 222 gallons of milk. They drank 111 quart of milk for breakfast and 3 pints for lunch. How many pints of milk did the Garcia family have left after lunch?
Answer:
11 pints of milk the Garcia family have left after lunch.
Step-by-step explanation:
The Garcia family started the day with 2 gallons of milk.
They drank 1 quart of milk for breakfast and 3 pints for lunch.
Since, 1 gallon = 8 pint
2 gallon = 16 pint
and 1 quart = 2 pint
Left amount = 16 pint - ( 2pint + 3pint)
= 16-5
= 11 pints
Hence, 11 pints of milk the Garcia family have left after lunch.
this is where you can use your pickup lines without getting in trouble
Answer:
Are u a door, because u left me on open..
Step-by-step explanation:
In a bag of Starbursts, 30% of the candy is pink. There are 90 pink Starbursts in the bag. How many TOTAL Starbursts are in the bag?
Answer:
About 304.
Step-by-step explanat:
.=10 9/30=0.3. . . . . . . . .= 30% + 0.3. . . . . . . . .=60% 0.3. . . . . . . . .=90% = 0.9. . . 1/3 of . = 100% +0.1 1 1/3 x 3/10= 0.1what expression is equivalent to (3c^2d^3)^2
Answer:
[tex] 9 {{c}^{4} } {{d}^{6} }[/tex]
Step-by-step explanation:
[tex](3c^2d^3)^2 \\ \\ = {(3)}^{2} {( {c}^{2} )}^{2} {( {d}^{3} )}^{2} \\ \\ = 9 {{c}^{4} } {{d}^{6} }[/tex]
can someone pleaseee help!!!
Answer:
Step-by-step explanation:
use known angles and rules to find unknown values
vertical angles (pairs of angles on opposite sides of an intersection) are equivalent
supplementary angles (angles found next to each other on a line) add up to 180 degrees
opposite interior angles are equivalent
And I don't remember the name of this kind of angle, but angle 1 and 10 are equivalent because they are found on the same "location"
using these rules you can find all missing angles.
1= 75
2=180-75=105
let me know if you need more help than this
how do i reflect over the y-axis if one point is over the y-axis?
Answer:
Coordinates of point B':
B' = (-1, -4)
Explanation
To reflect a point or a figure across the x-axis we use the rule:
→
In other words, we multiply the y-coordinate of our points by -1, while leaving the original x-coordinate as it is.
Let's apply the rule to every point of our triangle :
A = (2, 1)
A' = (2, 1*-1) = (2, -1)
B = (-1, 4)
B' = (-1, 4*-1) = (-1, -4)
C = (3, 7)
C' = (3, 7*-1) = (3, -7)
All the credit goes to cerverusdantePLEASE HELP,, MARKING BRAINLIEST!!!
Given coordinates T(10,18) and the midpoint of segment ST at (5,-8), what are the coordinates of point S?
Answer:
S = (-4, -34)
Step-by-step explanation:
T=(10, 18) is one end of the segment
the midpoint is located at (5, -8)
therefore, using the formula for midpoint, we can find the other end of the segment (point S)
Midpoint x-value = xa + (xb - xa)/2
in our case;
5 = 10 + (xb-10)/2
3 - 10 = (xb-10)/2
-7 = (xb-10)/2
-14 = xb-10
xb = -14 + 10 = - 4
Now for the y value of the midpoint:
Midpoint y-value = ya + (yb - ya)/2
in our case:
-8 = 18 + (yb - 18)/2
- 26 = (yb - 18)/2
- 52 = yb - 18
yb = -52 + 18 = -34
Then. point S is located at: S = (-4, -34)
Answer: (0, -34)
Step-by-step explanation:
[tex]M(5,-8)=(\frac{x_{1} + x_{2} }{2} ,\frac{y_{1} + y_{2} }{2})\\(5,-8)(\frac{10 + x_{2} }{2} ,\frac{18 + y_{2} }{2})[/tex]
[tex]5=(\frac{10 +x_{2} }{2})\\ 10=10+x_{2} \\-10-10\\0 = x_{2}\\x_{2} =0[/tex] [tex]-8=(\frac{18 +y_{2} }{2})\\ -16=18+y_{2} \\-18-18\\-34 = y_{2}\\y_{2} =-34[/tex]
Coordinates of point S = (0, -34)
Write the phrase as an expression.
18 less than a number r
expression:
Answer:
r - 18
Step-by-step explanation:
Less than means you put the 18 behind the r
Less than means subtraction
The expression for the phrase 18 less than the number r is r - 18.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
18 less than a number r.
Number = r
This means,
r - 18
Thus,
The expression is r - 18.
Learn more about expressions here:
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The temperature changed from 8 degrees to 3 degrees. How much did the temperature change by?
Answer:
Step-by-step explanation:
5degrees
Find the value of X and Y: 3x+9y=30 2(3x+9y)+x=64
pls help.
Answer:
x = 4 , y = 2
Step-by-step explanation:
3x+9y = 30 --------- (1)
2(3x+9y)+x = 64 ---------(2)
substitute (1) into (2)
2(30)+x = 64
60+x = 64
x = 64-60
x = 4
substitute x=4 into (1)
3x+9y = 30
3(4)+9y = 30
12+9y = 30
9y = 30-12
9y = 18
y = 18/9
y = 2
thus, x = 4 and y = 2