The graph below represents how much money Marcia charges for babysitting a certain number of hours.
Explain the meaning of the point (1,15) and why the point (0,0) appears on the graph.
Answers
Answer:
the 1/15 means the she gets 15.00 for working 1 hour. and the 0,0 means she gets 0 price because she worked 0 hours.
Related Questions
what the area and pelase explain give brainly points
Answers
Answer: 10 squares
Step-by-step explanation:
The answer for the area is 10 squares but I’m not sure that’s what they’re asking for.
4x+8-6x-2
Combine like Terms
Answers
8 - 2 + 4x - 6x
= 6 - 2x
Answer:
6 + -2x
Step-by-step explanation:
(4x+8)-(6x-2)
move the 6x to the 4x ()and the 8 to the 2()or the other way round
(4x-6×)(-2+8)
-2x+6
Find the rate if I = $2,484, P = $4.600, and T = 3 years.
Answers
Solution:
Given;
I = $2,484, P = $4.600, and T = 3 years.
Where the rate r, is;
\(r=\frac{100I}{PT}\)Thus;
\(\begin{gathered} r=\frac{100\times2484}{4600\times3} \\ \\ r=18 \end{gathered}\)Thus, the rate is 18%
It has been observed that, during various forms of social competition, men experience an increase in testosterone levels. A 2018 study investigated whether a similar effect exists with players in e-sports competition. Researchers recruited 26 male e-sports players and asked them to play the competitive e-game, League of Legends. The study found that participants had an average testosterone increase of 1.11 pg/ml after playing League of Legends, with a standard deviation of 15.18 pg/ml. Obtain a 95% confidence interval for the corresponding population parameter.
Answers
Answer:
= ( -4.725, 6.945) pg/ml
Therefore at 95% confidence interval (a,b) = ( -4.725, 6.945) pg/ml
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
Given that;
Mean gain x = 1.11 pg/ml
Standard deviation r = 15.18 pg/ml
Number of samples n = 26
Confidence interval = 95%
z(at 95% confidence) = 1.96
Substituting the values we have;
1.11+/-1.96(15.18/√26)
1.11+/-1.96(2.977042931397)
1.11+/-5.835004145539
1.11+/-5.835
= ( -4.725, 6.945) pg/ml
Therefore at 95% confidence interval (a,b) = ( -4.725, 6.945) pg/ml
Which ones are reflection over x-axis and reflection over y-axis? (make a chart for reflection over x-axis and put the letters for that one. make a chart for reflection over y-axis and put the letters for that one.)
Answers
Consider the individual options.
M)
A figure in quadrant II is reflected into quadrant III.
We know that the point in quadrant II is (-x,y) and the point in quadrant III is (-x,-y).
Recall that the reflection of point (x, y) across the x-axis is (x, -y).
\((-x,y)\rightarrow *(-x,-y)\)A figure in quadrant II is reflected into quadrant III is reflected over the x-axis.
N)
\((12,-7)\rightarrow(-12,-7)\)Let x=12 and y =-7 and substitute in the given, we get
\((x,y)\rightarrow(-x,y)\)Recall that the reflection of point (x, y) across the y-axis is (-x, y).
Answer:
\((12,-7)\rightarrow(-12,-7)\text{ is reflected over the y-axis.}\)O)
The point H(-1,4) is reflected to H' (1,4).
\((-1,4)\rightarrow(1,4)\)Let x=-1 and y =4 and substitute in the given, we get
\((x,y)\rightarrow(-x,y)\)Recall that the reflection of point (x, y) across the y-axis is (-x, y).
The point H(-1,4) is reflected to H' (1,4) is reflected over the y-axis.
P)
The axis line between two stars is the x-axis.
The given image is reflected over the x=axis.
Q)
The point R(-3,7) is reflected into quadrant III.
The point on quadrant III is of the form (-x,-y).
Let x =-3 and y =7 and the given can be written as follows.
\((x,y)\rightarrow(x,-y)\)Recall that the reflection of point (x, y) across the x-axis is (x, -y).
The point R(-3,7) is reflected into quadrant III is reflected over the x-axis.
R)
\((a,b)\rightarrow(a,-b)\)Recall that the reflection of point (x, y) across the x-axis is (x, -y).
Answer:
\((a,b)\rightarrow(a,-b)\text{ is reflected over the x-axis.}\)S)
Point B(-10,-7) is reflected into quadrant IV.
The point on quadrant III is of the form (x,-y).
Let x =-10 and y =-7 and the given can be written as follows.
\((x,y)\rightarrow(-x,y)\)Recall that the reflection of point (x, y) across the y-axis is (-x, y).
Point B(-10,-7) is reflected into quadrant IV is reflected over the y-axis.
T)
\((c,d)\rightarrow(-c,d)\)Recall that the reflection of point (x, y) across the y-axis is (-x, y).
Answer:
\((c,d)\rightarrow(-c,d)\text{ is reflected over the y-axis.}\)
T and R are vertical angles. T=3x+36 and R=6x-9. What is the measure of T?
Answers
Answer: m<T=81
Step by step explanation:
The value of an angle T for the vertically opposite angles will be 81.
What are vertically opposite angles?When two lines cross at a point, vertical angles are created. They are always on an equal footing. In other words, four angles are created anytime two lines cross or intersect. It is evident that two opposed angles are equal and are referred to as vertical angles.
Given that T and R are vertical angles. T=3x+36 and R=6x-9.
3x+36 = 6x-9
6x - 3x = 36 + 9
3x = 45
x = 15
∠T = 3x + 36
∠T = 3 x 15 + 36
∠T = 45 + 36
∠T = 81
Therefore, the value of an angle T for the vertically opposite angles will be 81.
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Can I please get some help I’ve been stuck on this question for a while!
Answers
Using the radius of the Ferris wheel and the angle between the two positions, the time spent on the ride when they're 28 meters above the ground is 12 minutes
How many minutes of the ride are spent higher than 28 meters above the ground?The radius of the Ferris wheel is 30 / 2 = 15 meters.
The highest point on the Ferris wheel is 15 + 4 = 19 meters above the ground.
The time spent higher than 28 meters is the time spent between the 12 o'clock and 8 o'clock positions.
The angle between these two positions is 180 degrees.
The time spent at each position is 10 minutes / 360 degrees * 180 degrees = 6 minutes.
Therefore, the total time spent higher than 28 meters is 6 minutes * 2 = 12 minutes.
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Solve for x.
log₈(3x+1)+16=18
Answers
You are given an n×n board, where n is an even integer and 2≤n≤30. For how many such boards is it possible to cover the board with T-shaped tiles like the one shown? Each cell of the shape is congruent to one cell on the board.
Answers
Answer:
7
Step-by-step explanation:
The number of cells in a tile is 4. If colored alternately, there are 3 of one color and 1 of the alternate color. To balance the coloring, an even number of tiles is needed. Hence the board dimensions must be multiples of 4.
In the given range, there are 7 such boards:
4×4, 8×8, 12×12, 16×16, 20×20, 24×24, and 28×28
Pls help!! I need this asappp!
Answers
∠BCD = 45°
Because,∠EDF is right angle which is 90°, its half will be of 45°. Possibly, the value of ∠CBD is given just to create confusion.
A theater is selling tickets to a play. Adult tickets cost $8 each and children's tickets cost $5 each. They collect $275 after selling x adult tickets and y children's tickets.
Part 1: Write an equation that represents the total money collected for the sales of adult and children's tickets.
Part 2: If they sell 25 adult tickets, how many children tickets were sold?
Answers
Answer:
part 1 : 8x + 5y = 275
part 2 : 15 children's tickets
12, 18, x, and 5 are used to calculate an average of 13. What is the missing number?
Answers
Answer:
17
Step-by-step explanation:
Given the data:
12, 18, x, 5
Average of the numbers = 13
The value of x will. Be
Sum of 12, 18, x and 5 divided by the number of data values.
Mean(average) = Σ(X) / n
n = number of values
13 = (12 + 18 + x + 5) / 4
13 = (35 + x) / 4
13 * 4 = 35 + x
52 = 35 + x
x = 52 - 35
x = 17
If g(x) = f(x) + k, what is the k value?
Answers
Answer:
If g(x) = f(x) + k, what is the k value?
The answer The value of k is 6
If a fair die is rolled 7 times, what is the probability, to the nearest thousandth, of
getting exactly 5 fours?
Answers
Answer:
if u free can u come please...
A triangle is rotated 90° about the origin. Which rule describes the transformation?
(x, y) → (–x, –y)
(x, y) → (–y, x)
(x, y) → (–y, –x)
(x, y) → (y, –x)
Answers
Answer:
(x,y)→(y,-x)
Step-by-step explanation:
Given : A triangle is rotated 90 degrees about the origin.
To Find : Which rule describes the transformation?
Solution :
Knowing that:
90° rotation ( clockwise) is (x,y)→(y,-x)
~Lenvy~
The rule which describes the transformation is (x, y) → (–y, x).
What is Rotation?Rotation is a kind of geometric transformation where a figure or point is rotated by a certain degrees about a given point.
Given that,
A triangle is rotated 90° about the origin.
A point (x, y) when rotated 90 degrees about the origin results in the point (-y, x).
Here a triangle is rotated 90° about the origin.
Rule is,
(x, y) → (–y, x)
Hence the correct rule is (x, y) → (–y, x).
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Challenge A bag contains pennies, nickels, dimes, and quarters. There are 50 coins in all. Of the coins, 14% are pennies and 30% are dimes. There are 4 more nickels than pennies. How much money does the bag contain?
Answers
Answer:
the bag contains $10.89.
Step-by-step explanation:
Let's start by using algebra to represent the number of coins in terms of one variable. Let x be the number of pennies in the bag. Then:
The number of nickels is 4 more than the number of pennies, so there are x + 4 nickels.
The number of dimes is 30% of the total, so there are 0.3 * 50 = 15 dimes.
The number of quarters is the remaining coins: 50 - (x + x + 4 + 15) = 31 - 2x.
To find the total amount of money, we need to multiply the number of each type of coin by its value and add them up. Using the values of the coins:
Pennies: x * $0.01
Nickels: (x + 4) * $0.05
Dimes: 15 * $0.10
Quarters: (31 - 2x) * $0.25
Adding these expressions and simplifying, we get:
Total = 0.01x + 0.05(x + 4) + 0.10(15) + 0.25(31 - 2x)
= 0.01x + 0.05x + 0.20 + 1.50 + 7.75 - 0.50x
= 0.06x + 9.45
Now we need to find x, the number of pennies. We know that 14% of the coins are pennies, so:
0.14 * 50 = 7 = x + (x + 4) + 15 + (31 - 2x)
Solving for x, we get:
7 = 50 - x - 19
x = 24
So there are 24 pennies, 28 nickels, 15 dimes, and 3 quarters in the bag. The total amount of money is:
Total = 0.06(24) + 9.45 = $10.89
Therefore, the bag contains $10.89.
Using Intermediate Value Theorem determine which of the following
function has a real root on [1,2].
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Answer:
Use the Intermediate Value Theorem to prove that every cubic function has at least one real root. You will have to first argue that you can find real numbers a and b so that f(a) is negative and f(b) is positive.
Find the third iterate x3 of f(x) = 2x + 3
for an initial value of x0 = 2
a. 7
b. 15
c. 17
d. 37
Answers
For the function f(x) = 2x + 3 the third iterate x₃ is 37
To find the third iterate, x3, of the function f(x) = 2x + 3, given an initial value of x₀ = 2,
we can apply the function repeatedly.
Starting with x₀ = 2:
x₁ = f(x₀)
= 2(2) + 3
= 7
x₂ = f(x₁)
= 2(7) + 3 = 17
x₃ = f(x₂)
= 2(17) + 3
= 37
Therefore, the third iterate x₃ is 37.
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S(x)=5x+5
T(x)=_3x +4
The value of t(s(2))
Answers
Answer:
Step-by-step explanation:
This is a composite function, in which we will first evaluate the s function at a value of 2, then we will use that value in the t function.
s(2) = 5(2)+ 5 so
s(2) = 15. Now we evaluate the t function at 15:
t(15) = 3(15) + 4 so
t(15) = 49
thank you so much im confused
Answers
Answer:
The period of this graph is 10
Step-by-step explanation:
The period is defined as the length of one wave of the function, in this case, the graph
Fill in the boxes to add the expressions.
(5.19+4m)+(4.18+3.95m) = (4m+_)+(5.19+_)=_
Answers
Using common factor method, sum of the given expressions is 17.14m + 9.37
what is common factor ?
In mathematics, a common factor is a factor that two or more numbers have in common. For example, the numbers 12 and 18 have common factors of 1, 2, 3, and 6. The greatest common factor (GCF) is the largest number that divides evenly into two or more numbers.
In algebra, we often use the term "common factor" when referring to expressions. When two or more algebraic expressions have a factor in common, we can use the distributive property to factor out the common factor.
According to the question:
To add the expressions (5.19+4m)+(4.18+3.95m), we can first group the like terms:
(5.19 + 4.18) + (4m + 3.95m)
9.37 + 7.95m
So, the sum of the expressions is:
(5.19+4m)+(4.18+3.95m) = 9.37 + 7.95m
Now, we can use the distributive property to factor out a common factor of m from 7.95m:
9.37 + 7.95m = 4m + (5.19 + 7.95)m
We can factor out a common factor of 1 from (5.19 + 7.95)m:
4m + (5.19 + 7.95)m = (4 + 5.19 + 7.95)m
Adding the coefficients, we get:
4 + 5.19 + 7.95 = 17.14
Therefore, the sum of the expressions is:
(5.19+4m)+(4.18+3.95m) = (4m+5.19)+(3.95m+4.18)= 17.14m + 9.37.
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Which way is counterclockwise?
A. The way the hands move on a clock. (To the right)
B. The opposite way the hands move on a clock. (To the left)
Answers
Answer:
B. the opposite way the hands move on a clock
What is the likelihood
that all 21 students in a class share the same birthday? Explain.
Quick please!
Answers
Answer:
it is not likey bc inless the class have over 2 mil ppl in it itis doouptfull
Step-by-step explanation:
The annual expenditure of the US federal government is approximately
4
44 trillion dollars.
If a one dollar bill is
0.0001
0.00010, point, 0001 meters thick, how many meters tall would a stack of
4
44 trillion one dollar bills be?
Write your answer in scientific notation.
Answers
Answer: To find the height of a stack of one dollar bills that equals 4/44 trillion dollars, we need to divide the total amount by the thickness of a single bill:
4/44 trillion dollars ÷ 0.0001 meters/bill = (4/44 trillion) / (0.0001) meters
Simplifying the fraction, we get:
(4/44 trillion) / (0.0001) meters = 0.0000000000045454545... meters
We can write this in scientific notation as:
4.5454545 × 10^-12 meters
So a stack of 4/44 trillion one dollar bills would be approximately 4.5454545 picometers tall.
Step-by-step explanation:
Mike drove 397 miles on 8 hours. About how many miles did she drive each hour?
Answers
Answer:
49.6
Step-by-step explanation:
just divide 397 by 8
Answer:
About 49.63 miles per hour
Step-by-step explanation:
but this is the answer
hope this helps
Find the distance between the points. Round to the nearest tenth.
(1, 3) and (5.0)
Answers
Pls helppppppppoppppppp
Answers
Answer:
H. 3\(\frac{3}{4}\)feet
Step-by-step explanation:
Length of scale drawing = \(\frac{3}{12}\) × 15feet
= 3\(\frac{3}{4}\)feet
Help, I’ll give brainlest.
Answers
Answer:
432
Step-by-step explanation:
8 3/3 x the 3.14 aka pie the explanation
Answer:
432 is the most closely estimate .
the specific answer is 453 8/9 but its closer from 432 than 480 .
A triangle has angle measures of 27 degrees , 50 degrees, and x degrees, use the triangle sum theorem to find the value of x.
Answers
ANSWER:
Angle x is 103 degrees
EXPLANATION
The sum of all the angles in a triangle is 180 degrees
Hence, Let angle A = 27 degrees
Angle B = 50 degrees
Angle C = x degrees
Triangle sum theorem state that
50 + 27 + x = 180
77 + x = 180
x = 180 - 77
x = 103 degrees
The side lengths are 9,12,18. is this a right triangle?
Answers
No the side lengths of 9,12, and 18 doesn’t form a right triangle. Posted a picture showing all the side length that is a right triangle.
Answer:
no it is not
Step-by-step explanati