PLZ HELP IN MATH PLZ
Answer:
3L
Step-by-step explanation:
State the domain and range of the relation below.
{(1, -2), (4, 5), (2, -4), (6,5), (2, 2)}
A domain = {1, 2, 4, 6) and range = {-4, -2, 2,5}
B domain = {-4, -2, 2, 5} and range = {1, 2, 4, 6}
c domain = {-2, 1, 2, 4, 5} and range = {-4, 2, 2, 5, 6}
D domain = {-4, 2, 2, 5, 6} and range = {-2, 1, 2, 4,5}
* need help fast *
Answer:
The answer you are looking for is A.
Step-by-step explanation:
Remember, the domain is a set of working x values or all possible inputs of a function or two variable relationship. The range is a set of working y values or all possible outputs of a function or two variable relationship. A two variable relationship with more than one output for each input will not be a function in general but will be refered to as inverse.
Now given a set of coordinates for this relation, coordinates with x and y values or inputs and outputs are generally cartesian coordinates represented by (x,y). This is so we know the working x value for each y value, also making it easier to graph it on a coordinate plane or visualize it. x = domain (input of a function) , y = range (output of a function).
All you have to do is sort the x and y values you are given from the coordinates.
For instance, (-1,2) and (4,5) : domain of -1 and 4 [the x values], range of 2, and 5 [the y values].
Write an equation in slop intercept for of the line with the following:
Slope: -3/4
y-intercept: -5
Answer:
y = -3/4x -5
Step-by-step explanation:
The slope always goes first, then variable x and the y intercept comes last
1 yard of fabric costs $3.25. If you need 4.2 yards, how much will it
cost to purchase the fabrics needed?
Answer:
12.50$
Step-by-step explanation:
3 dollars for 1 yard
3x4=12
.25x2=50
12.50$
Hi, i need help Pleases.
Answer:
Here the answer to your question
Step-by-step explanation:
Sam opened a savings account with a deposit of $50. Every month after that, he
deposited $20 more. Is this a proportional relationship? Why or Why not?
Step-by-step explanation:
It is given that,
Sam opened a savings account with a deposit of $50. Every month after that, he deposited $20 more.
It is not a proportional relationship. As initial amount was $50 and every month he deposited $20 more. The ratio is not constant for the deposited amounts.
To make the relationship proportional, he must start with zero balance and then should have deposited $20 every month.
Write an equation of the line in slope-intercept form
(-1,0) (-5,0)
Answer:
if there are no typos, line is y=0
Step-by-step explanation:
slope intercept form is y=mx+b
m= slope
b= y intercept
slope is found by y2-y1 / m2-m1
so using the points (-1, 0) and (-5, 0)
(0-0) / (-5 - -1)
= 0/ -4
= 0
m=0
y=0x+b
plug in a point to find b
0=0*-1 +b
b=0
The line is just y=0
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I Need Help Please And Thank You
I'll give brainliest (; Please help tysm ❤
Valentina bought 12 puzzles each with the same number of pieces. The total amount of pieces is 19,200. How many pieces are in each puzzle box?
Answer: 1600
Step-by-step explanation:
If there is a total amount of 19200 pieces within 12 puzzle boxes, then we'll have to divide 19200 by 12.
19200 ÷ 12 = 1600.
In conclusion, 1600 pieces are in each puzzle box.
Hope this helps!
Answer:
1,600 pieces per puzzle
Step-by-step explanation:
19,200/12= 1,600
you divide because you have the total amount of puzzle pieces and you have the amount of puzzles so
Henry drank 2/5 of his water bottle. If he drank 3 cups of water, what was the total amount of cups of water in his water bottle? Solve with a model and a full sentence answer.
Answer:
The amount of cups of water in the water bottle is 7.5.
Step-by-step explanation:
Given that Henry drank 2/5 of his bottle of water, and those 2/5 were distributed in 3 glasses, to determine the total amount of glasses that go into the bottle it is necessary to perform the following calculation:
2/5 X = 3
1/5 X = 1.5
X = 1.5 x 5
X = 7.5
Therefore, the bottle fits 7 and a half glasses of water.
Evaluate if x=-4 and y=13 3(2x- y)
Answer:
-63
Step-by-step explanation:
6x - 3y
= 6 × -4 - 3 × 13
= -24 - 39
= -63
help pleaseeeeee! I need an answer quick please
Answer:
subtraction
Step-by-step explanation:
b= 40 - 5
40- 5 =35
b=40
Answer:
addition
Step-by-step explanation:
If you drive 600 miles in 10 hours, what is your average speed? Options-
610 miles per hour
60 miles per hour
0 6,000 miles per hour
50 miles per hour. I’m so confused
5 times w increased by 4 is 2 times u.
(i don’t understand function rules)
will give brainliest
Answer:
5w + 4 = 2u
Step-by-step explanation:
If your problem is putting that statement into number form, then that'll be your answer
Please help me pass this class
Answer:
b
Step-by-step explanation:
You and your friend are standing back-to-back. Your friend runs 8 feet forward, and then 6 feet right. At the same time, you run 4 feet forward, and then run 3 feet to the right. You stop and throw a football to your friend, who catches it. How far did you throw the football?
Answer:
15 feet
Step-by-step explanation:
you and your friend basically formed two different triangles, and in order to determine the distance that the ball traveled we must calculate both hypotenuses:
triangle 1:
hypotenuse = √(8² + 6²) = √100 = 10 feet
triangle 2:
hypotenuse = √(4² + 3²) = √25 = 5 feet
total distance traveled by the ball = 10 + 5 = 15 feet
What is the perimeter, in units, of polygon UVWXYZ? Enter your answer in the box.
Given:
Consider the below figure attached with this question.
To find:
The perimeter of the polygon UVWXYZ.
Solution:
All sides and vertical and horizontal. So, we can easily find the side lengths of the given polygon by counting the boxes between two points.
From the figure it is clear that,
UV = 9 units
VW = 2 units
WX = 3 units
XY = 3 units
YZ = 6 units
ZU = 5 units
Now, perimeter is the sum of all the sides.
[tex]Perimeter=UV+VW+WX+XY+YZ+ZU[/tex]
[tex]Perimeter=9+2+3+3+6+5[/tex]
[tex]Perimeter=28[/tex]
Therefore, the perimeter of UVWXYZ is 28 units.
Two sisters, Beyunka and Tamu, made resolutions to save their money regularly in 2016. They are both going to save a certain amount of money every month. After how many months will Beyunka and Tamu have saved the same amount of money?
Answer:12months
Step-by-step explanation:
There are 12 months in a year
Myra is putting together a puzzle such that every 5 days she places one quarter of the remaining pieces into the puzzle. If she started with a 800 piece puzzle, how many pieces are left to be placed after 23 days? Show the work that leads to your answer
Given:
Initial number of pieces Myra have = 800.
Every 5 days she places one quarter of the remaining pieces into the puzzle.
To find:
The number of remaining pieces after 23 days.
Solution:
Initial number of pieces Myra have = 800.
Every 5 days she places one quarter of the remaining pieces into the puzzle.
It means, she will place the puzzles on 5,10,15,20,25,.. days. she will place the puzzle 4 times before 23 days.
The number of remaining pieces decreasing by [tex]\dfrac{1}{4}[/tex].
Formula for number of remaining pieces is
[tex]y=a_0(1-r)^t[/tex]
where, [tex]a_0[/tex] is the initial value, r is decreasing rate and t is time.
Putting [tex]a_0=800,r=\dfrac{1}{4}[/tex] and t=4, we get
[tex]y=800(1-\dfrac{1}{4})^4[/tex]
[tex]y=800(\dfrac{3}{4})^4[/tex]
[tex]y=800(0.75)^4[/tex]
[tex]y=800(0.31640625 )[/tex]
[tex]y=253.125[/tex]
Approximate the value to the nearest whole number.
[tex]y\approx 253[/tex]
Therefore, the number of remaining pieces is 253.
Find the particular solution to y ' = 2sin(x) given the general solution is y = C - 2cos(x) and the initial condition y of pi over 3 equals 1 . (5 points)
-2cos(x)
closeIncorrect
3 - 2cos(x)
checkCorrect
2 - 2cos(x)
-1 - 2cos(x)
Answer:
[tex]y=2-2\cos(x)[/tex]
Step-by-step explanation:
We have the differential:
[tex]y^\prime=2\sin(x)[/tex]
With the general solution:
[tex]y=C-2\cos(x)[/tex]
And we want to find the particular solution such that it satisfies the initial condition:
[tex]\displaystyle y\Big(\frac{\pi}{3}\Big)=1[/tex]
So, we have:
[tex]y=C-2\cos(x)[/tex]
Substituting π/3 for x and 1 for y yields:
[tex]\displaystyle 1=C-2\cos\Big( \frac{\pi}{3} \Big)[/tex]
Solve for C. Evaluate:
[tex]\displaystyle 1=C-2(\frac{1}{2})[/tex]
Simplify:
[tex]1=C-1[/tex]
Hence:
[tex]C=2[/tex]
Therefore, our particular solution will be:
[tex]y=2-2\cos(x)[/tex]
Hence, our answer is C
I need statements and reasoning to prove IG is congruent to HJ
Given the equation y=-3x+2.5: When x is 1, what value of y makes the equation true? When x is -1.5, what value of y makes the equation true? When y is 8.5, what value of x makes the equation true?
Step-by-step explanation:
when,X=1
y=-3 *1+2.5
y=-3+2.5
y=0.5
when,X=1.5
y=-3*1.5+2.5
y=-4.5+2.5
y=-2
when,y=8.5
8.5=-3*X+2.5
3*X=2.5-8.5
3*X=-6
X=-6/2
X=-3
Hence, the statements are true:
when [tex]x=-1.5[/tex] the value of [tex]y=-2[/tex] and when [tex]y=8.5[/tex] then [tex]x=-3[/tex].
What is the equation?
The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
Here given equation is
[tex]y=-3x+2.5[/tex]
So,
[tex]y=-3 (1)+2.5\\y=-3+2.5\\y=0.5\\[/tex]
When,
[tex]x=-1.5\\y=-3(1.5)+2.5\\y=-4.5+2.5\\y=-2\\[/tex]
when,
[tex]y=8.5\\8.5=-3x+2.5\\3x=2.5-8.5\\3x=-6\\x=-\frac{6}{2}\\x=-3\\[/tex]
Hence, the statements are true:
when [tex]x=-1.5[/tex] the value of [tex]y=-2[/tex] and when [tex]y=8.5[/tex] then [tex]x=-3[/tex].
To know more about the equation
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Find the value of r so the line that passes through the pair of points has the given slope.
(12, 10) (-2, r), m = -4
Answer:
The missing value in the ordered pair is 66
Step-by-step explanation:
Given that:
(12,10) and (-2,r)
Slope = m = -4
We have to find the value of r so that the line has a slope of -4.
Slope is the steepness of line which is denoted by m.
Here,
[tex]x_1=12, y_1=10\\x_2=-2, y_2=r[/tex]
Putting the values in slope of line formula,
[tex]-4=\frac{r-10}{-2-12}\\ -4=\frac{10-r}{-14}\\[/tex]
Multiplying both sides by -14
[tex]-4*-14=\frac{r-10}{-14}*-14\\56=r-10\\56+10=r\\66=r\\ r=66[/tex]
The value of r is 66
Hence,
The missing value in the ordered pair is 66
12 m
9 m
What is the length of the hypotenuse?
C =
meters
Step-by-step explanation:
AC^2=AB^2+BC^2
c^2=9^2+12^2
c^2=81+144
c^2=225
c=15
How much is left on the card after Carl has seen the maximum number of movies
Answer:
how much was on it and how many is the maximum movies
Step-by-step explanation:
HELLPPP PLEASE!!!!
What is the meaning of the the point (4, 22)?
and am I wrong for the first one?
Answer:
The meaning of (4,22) is Magi had run 4 mike's in 22.5 mins
Have a nice Day , Hope this helped you I would appreciate it if you could mark my answer brainliest
Answer:
No, you are correct for the first one. The meaning of the point (4, 22) is that Magi took 22 minutes to run 4 miles.
Step-by-step explanation:
(4, 22) is written as (x, y) where x is the number of miles Magi ran and y is the number of minutes Magi took.
Thus, when Magi ran 4 miles, she took 22 minutes.
I WILL MARK YOU AS BRANLIEST JUST DO THIS PLS ASAP
Edson exercises in sets that are each t minutes long. He does 6 sets of push-ups, 3 sets of pull-ups, and 4 sets of sit-ups. Write an expression to represent the time it takes Edson to exercise as the sum of three different terms. Then simplify the expression.
Answer:
(6t) + (3t) + (4t)
Simplified it would be 13t
If p(x) = 5(x² + 1) + 16, what is value of p(11)?
Answer: The answer is 626
Step-by-step explanation:
Substitute 11 for x, you get 626.
Please help will brainlist if right
Answer:
12. B
13 A
18 B
19 B
Step-by-step explanation:
12. The solutions of the quadratic is the roots, so 0 = x^2 -7x -30 = (x-10)(x+3). For this to be satisfied, either x-10 = 0 -> x = 10 and x + 3 = 0 -> x = -3
13. Either x = 0 or x+8 = 0 -> x =-8 for this to be true
18. The GCF of 2, 6, and 20 is 2. No other number satisfies being a common factor.
19. The product of the solutions of the equation is the (constant/leading coefficient) in the quadratic, which is -8/1 = -8
I hope this helps! :)