Answer:
Team A: 0
Team B: 0.3889
Team C: 0.5
Team D: 0.1111
Step-by-step explanation:
The relative frequency is given by:
The division of the number of people in an interval by the total number of people.
In this question:
18 track members.
None ran between 0 and 4.9 seconds. So the frequency of Team A is 0/18 = 0
7 ran between 5 and 9.9 seconds. So the frequency of Team B is 7/18 = 0.3889
9 ran between 10 and 14.9 seconds. So the frequency of Team C is 9/18 = 0.5
2 ran between 15 and 19.2 seconds. So the frequency of Team D is 2/18 = 0.1111
Find the distance between the point (5,12) and the line y = 5x + 12 (rounded to the nearest hundredth).
A. 1.36 units
B. 2.19 units
C. 4.81 units
D. 4.90 units
The distance between the point (5,12) and the line y = 5x + 12 is 4.90 units
How to find the distance between a point and a line?
If a point P with the coordinates (x₁, y₁), and we need to know its distance from the line represented by ax + by + c = 0
Then the distance of a point from the line is given by the formula:
d = (ax₁ + by₁ + c) / √(a² + b²)
Given: the point (5,12) and the line y = 5x + 12. The line can be written as
5x-y+12 = 0. Thus:
x₁ = 5, y₁ = 12, a = 5, b = -1, c = 12. Substitute these into the formula:
d = (ax₁ + by₁ + c) / √(a² + b²)
d = (5×5 + (-1×12) + 12) / √(5² + (-1)²)
d = 25/√26 = 4.90 units
Therefore, the distance between the point and the line is 4.90 units. Option D is the answer
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The triangle and the rectangle have the same area.
All lengths are in cm.
7x + 2
a Form an equation in x.
b Solve your equation to find x.
c Work out the area of the shapes.
1
2x + 7
The length of one side of the equilateral triangle in terms of x is 6x.
To find the length of one side of the equilateral triangle in terms of x, we need to consider the perimeter of both the rectangle and the equilateral triangle.
The perimeter of a rectangle is given by the formula:
Perimeter of rectangle = 2(length + width)
In this case, the length of the rectangle is 7x cm, and the width is 2x cm. Substituting these values into the formula, we have:
Perimeter of rectangle = 2(7x + 2x) = 2(9x) = 18x
We are told that the equilateral triangle has the same perimeter as the rectangle.
Since an equilateral triangle has all sides equal, the perimeter can be calculated by multiplying the length of one side by 3.
Therefore, we have:
Perimeter of equilateral triangle = 3(side length)
Since the perimeter of the equilateral triangle is equal to the perimeter of the rectangle (18x), we can set up the equation:
3(side length) = 18x
Dividing both sides of the equation by 3, we get:
side length = 6x
Hence, the length of one side of the equilateral triangle in terms of x is 6x.
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The complete question may be like: A rectangle measures 2x cm by 7x cm. An equilateral triangle has the same perimeter as the rectangle. What is the length of one side of the triangle in terms of x?
The area of a rectangular room is 750 square feet. The width of the room is 5 feet less than the length of the room. Which equations can be used to solve for y, the length of the room? Select three options.
y(y + 5) = 750
y2 – 5y = 750
750 – y(y – 5) = 0
y(y – 5) + 750 = 0
(y + 25)(y – 30) = 0
The equations that can be used to solve for y, the length of the room, are: y(y + 5) = 750, y² – 5y = 750, and y(y – 5) + 750 = 0.
What is distributive property?It states that when multiplying a number by a group of numbers added together, you can multiply the number by each individual number in the group and add the products together to get the same answer.
In order to find the length of the room, we need to solve for y in each of the equations given.
First, let's solve for y in the equation y(y + 5) = 750. We can use the distributive property to expand the equation to y² + 5y = 750.
Then, we can subtract 750 from both sides of the equation to get y² + 5y - 750 = 0.
To solve the equation, we need to factor it. We can use the difference of squares formula to factor the equation, yielding (y + 25)(y - 30) = 0. Therefore, one solution for y is y = -25, and the other solution is y = 30.
Second, let's solve for y in the equation y² – 5y = 750.
To solve this equation, we can add 5y to both sides to get y² = 5y + 750. Then, we can divide both sides by y to get y = 5y + 750.
We can then subtract 5y from both sides to get y - 5y = 750. Finally, we can divide both sides by 5 to get y = 150.
Third, let's solve for y in the equation y(y – 5) + 750 = 0.
To solve this equation, we can use the distributive property to expand the equation to y² – 5y + 750 = 0.
Then, we can subtract 750 from both sides to get y² – 5y = -750.
To solve the equation, we need to factor it. We can use the difference of squares formula to factor the equation, yielding (y + 25)(y - 30) = 0. Therefore, one solution for y is y = -25, and the other solution is y = 30.
In conclusion, the equations that can be used to solve for y, the length of the room, are y(y + 5) = 750, y2 – 5y = 750, and y(y – 5) + 750 = 0. The solutions for y are y = -25 and y = 30.
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Help Please 5/8 x 4/7
Answer:
5/14
Step-by-step explanation:
aight can someone help me lol
Need help please ..
Answer:
x = -11
Step-by-step explanation:
I'm assuming it's an isosceles triangle so 32 + 2x = 10;
subtract 32 from both sides;
2x = -22
x = -11
PLEASE SOLVE! IT'S REALLY EASY, BUT MY BRAIN IS DEAD AT THE MOMENT.
Answer:
x = 30 over 11
Step-by-step explanation:
6(9x-5)-4(3+2x)-3(8x-20) = 24
54x-30-12-8x-24x+6 = 24
22x = 24+36
22x = 60
then divide both sides by 22
x = 30 over 11
Mathematics
12g - 16 =
Answer:
g= -4 is correct answer
what is the range of function m?
The range of the function m is [1, ∞). Thus, B is correct option.
What are a function's range and domain?The dοmain οf a functiοn is the cοllectiοn οf values that can be plugged intο it. This set represents the x values in a functiοn like f. (x). A functiοn's range is the set οf values that the functiοn can take οn. This is the set οf values returned by the functiοn when we enter an x value.
Tο determine the range οf functiοn m, we must first determine the set οf all pοssible functiοn οutput values.
Looking at the function graph, we can see that the lowest point is (3, 1) and the highest point is (∞, ∞).
As a result, the function m has a range of [1, ∞).
We can write: in interval notation:
m ∈ [1, ∞) range.
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Louis ordered sandwiches for the committee. Each sandwich costs $6.25 and there is a one-time delivery fee of $15. If the total bill came to $152.50, how many sandwiches (x) did he order ?
You are the manager of a firm that sells its product in a competitive market at a price of $48. Your firm's cost function is C = 60 + 2Q 2. Your firm's maximum profits are
Answer:
the correct answer is truly
Step-by-step explanation:
STOP CHEATING ON THID APP
Write a sine function with an amplitude of 5, a period of
Pi/8,and a midline at y = 7.
f(x) = 4sin(8x) + 5
f(x) = 5sin(16)+7
f(x) = 5sin(16x) + 4
f(x) = 4sin(8x) + 7
Answer:
\(\textsf{B)} \quad f(x) = 5 \sin (16x) + 7}\)
Step-by-step explanation:
The sine function is periodic, meaning it repeats forever.
Standard form of a sine function\(\boxed{f(x) = A \sin (B(x + C)) + D}\)
where:
A is the amplitude (height from the midline to the peak).2π/B is the period (horizontal distance between consecutive peaks).C is the phase shift (horizontal shift - positive is to the left).D is the vertical shift (y = D is the midline).Given values:
Amplitude, A = 5Period, 2π/B = π/8Phase shift, C = 0Vertical shift, D = 7Calculate the value of B:
\(\dfrac{2\pi}{B}=\dfrac{\pi}{8}\implies 16\pi=B\pi\implies B=16\)
Substitute the values of A, B C and D into the standard formula:
\(f(x) = 5 \sin (16(x + 0)) + 7\)
\(f(x) = 5 \sin (16x) + 7\)
Therefore, the sine function with an amplitude of 5, a period of π/8, and a midline at y = 7 is:
\(\Large\boxed{\boxed{f(x) = 5 \sin (16x) + 7}}\)
help me please please please
The angle measures for this problem are given as follows:
a = 62º.b = 118º.c = 62º.d = 62º.How to obtain the angle measures?The sum of the measures of the internal angles of a triangle is of 180º.
The triangle in this problem is ABC, hence the measure of a is obtained as follows:
a + 68 + 50 = 180
a = 180 - (68 + 50)
a = 62º.
c and d are corresponding angles to angle a, as they are on the same position relative to parallel lines, hence their measures are given as follows:
c = 62º.d = 62º.Angle b is a corresponding interior angle with angle a, hence they are supplementary and it's measure is given as follows:
a + b = 180
62 + b = 180
b = 118º.
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Please help me with this I will give brainlist
Answer:
the answer your looking for is a.) 8.6
Please help me with work
1. the equation is y=mx+b. m= slope and b= y-intercept so your answer should be y=2/3x+2
2. point-slope form is y-y1/x-x1=m answer is y+4=-1(x-1)
3. i give up im sorry my brain is fried ;-;
4.uhh i graphed it and attached an image lol
dang i- cant do no more math today lol sorry good luck
Multiply: 0.55(8, 000)
Answer:
4400
Step-by-step explanation:
to solve this we should first put them in an equation
0.55 * 8000
because there are 3 zeros after the second number we can first put three 0s
?000
then multiply 8 by 55
440
then add that to the 000
440000
now because the first number as 2 decimal points we take the invisible decimal point at the end and move it to the left two
440000. --> 4400.00
which is also
4,400
that is your answer
on a coordinate plane which quadrant is shaded\(y\leq x\)
We can see that the first and third quadrants are half-shaded, and the fourth quadrant is totally shaded.
Which quadrants are shaded?Here we have the following inequality:
y ≤ x
The shaded region would be the solution set of that inequality, to get that we need to graph the line:
y = x
Which divides the coordinate plane, and then shade the region below that line (because y is smaller than or equal to x)
Then the graph you will get is like the one below.
There you can see that the first and third quadrans are half shaded, and the fourth quadrant is totally shaded.
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COMPLETE
You can verify that your answer is a solution to the original equation by checking -1/2(-14)-3=4 is a
true statement. Which property of equality allows you to do this?
Oreflexive
Otransitive
substitution
Explanation:
Think of a substitute teacher. They temporarily replace your original teacher. The same idea applies with replacing the variable with a number.
For example, the equation x+2 = 7 has the solution x = 5. We can check this by substituting or replacing x with 5 to say 5+2 = 7, which is indeed a true mathematical statement. This confirms the solution.
Find the missing value.
Hint: Use the number line to find the missing value.
Helppp
Answer:
-2
Step-by-step explanation:
the multiplication of -×- will be + so if-×-will be plus then -7 after multiplying will be + so
_2+7=5
Answer is 12! Gl on what ur doing!
10 POINTS!! ASAP please help me find the area and also the outer perimeter!!!
Answer:
area of semi circle =pi r^2/2
3.14*6*6/2=56.2
area of rectangle=lb
=20*12=240
240+56.2=296.2
rounding it it will become 300 ft sqr
perimeter of rectangle without including 4th side=20+12+20=52
perimeter of semicircle=pi r+d (d is not needed here)
3.14*6=18.84
so total perimeter=52+18.84=70.84ft
Step-by-step explanation:
If the mean of: 2x,x,(2x−11),(x−3) is equal 4, then the value of x is:
Answer:
\( \boxed{ \bold{ \huge{ \boxed{ \sf{x = 5}}}}}\)Step-by-step explanation:
Given data : 2x , x , 2x - 11 , x - 3
Mean = 4
N ( number of items ) = 4
Σx = 2x + x + 2x - 11 + x - 3
To find : value of x
Finding the value of x
We know that ,
Mean = \( \sf{ \frac{Σx}{n} }\)
plug the values
⇒\( \sf{4 = \frac{2x + x + 2x - 11 + x - 3}{4} }\)
Collect like terms
⇒\( \sf{4 = \frac{6x - 14}{4 }}\)
Apply cross product property
⇒\( \sf{6x - 14 = 16}\)
Move 14 to right hand side and change it's sign
⇒\( \sf{6x = 16 + 14}\)
Add the numbers
⇒\( \sf{6x = 30}\)
Divide both sides of the equation by 6
⇒\( \sf{ \frac{6x}{6} = \frac{30}{6} }\)
Calculate
⇒\( \sf{x = 5}\)
Hope I helped!!
Best regards!!!
Find the height of the polygon
6m+5n when m =6 and n=4
Answer:
Step-by-step explanation:First, remove all of the terms from parenthesis. Be careful to handle the signs of each individual term correctly:
5m +5n+6m−4n
Next, group like terms:
5m+6m+5n−4n
Now, combine like terms:
(5+6)m+(5−4)n
11m+1n
11m+n
Given the definitions of f(x) and g(x) below, find the value of (fog)(-3).
f(x) = 3x² - 7x-3
g(x) = -4x - 10
The value of the composite function (f o g)(3) is 1603
How to evaluate the composite function?The functions are given as
f(x) = 3x² - 7x - 3
g(x) = -4x - 10
Next, calculate (f o g)(x) using
(f o g)(x) = f(g(x))
So, we have
(f o g)(x) = 3(-4x - 10)² - 7(-4x - 10) - 3
Substitute 3 for x.
So, we have
(f o g)(3) = 3(-4 x 3 - 10)² - 7(-4 x 3 - 10) - 3
Evaluate
(f o g)(3) = 1603
Hence, the value of the composite function (f o g)(3) is 1603
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What is equivalent to 3;4
Answer:
6;8
3;4 that the lowest that it can go. the equivalent is 6;8 but if you want to change it into decimal form you can divide by two which is 1.5;2 but the answer is 6;8 because 3;4 is already in it's lowest form, or is already simplified to it's maximum extent.
At a given high school, the probability that a student is taking a geometry class is 0.24. The probability that a student is taking a chemistryclass and a geometry class is 0.18.If a student is taking a geometry class, what is the probability that the student is also taking a chemistry class?
Consider that the probability that a student is taking both geometry and chemistry class is the product of the probability for geometry class by the proability for chemistry class.
If the probability that a student is taking a chemistry
class and a geometry class is 0.18, and the probability that a student is taking a geometry class is 0.24, you have:
0.24x = 0.18
where x is the probability a student is taking a chemistry class.
Solve the previous equation for x:
0.24x = 0.18 divide by 0.24 both sides
x = 0.18/0.24
x = 0.75
6) 1,1,3,8,19, 41
a) 60
b) 81
c) 90
d) 101
Analogias
The next term in the sequence is 98. None of the given options (60, 81, 90, 101) match the expected next term. None of the option is correct.
To find the pattern in the sequence 1, 1, 3, 8, 19, 41, we can examine the differences between consecutive terms:
1 1 3 8 19 41
0 2 5 11 22
Looking at the differences, we can observe that each subsequent difference is obtained by adding consecutive odd numbers: 2, 3, 4, 5, etc. This suggests that the original sequence may be related to square numbers.
Let's check if the differences between consecutive terms are square numbers:
2 = 1²
5 = 2² + 1²
11 = 3² + 2²
22 = 4² + 3²
Based on this pattern, we can make a reasonable assumption that the next difference should be 5² + 4² = 41 + 16 = 57. Adding this difference to the last term of the sequence (41), we get the next term:
41 + 57 = 98
Therefore, the next term in the sequence is 98. None of the given options (60, 81, 90, 101) match the expected next term.
Hence, none of the given options accurately continue the pattern of the sequence. It's important to note that patterns in sequences can sometimes have multiple possible interpretations, and it's always essential to consider alternative patterns or extend the sequence further to confirm the pattern.
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if the total debt in 2012 was 2978 billion, about how much was total credit card debt
Answer:
120Million
Step-by-step explanation:
thatev whwu g U (EDIT: IM SO SORRY THATS NOT THE ANSWER MY SISTER DID THAT)
Keep getting this wrong please help!!!
Answer:
14.13 in³
Step-by-step explanation:
Volume of a ball (sphere) is:
V = ⁴/₃ π r³
Circumference of a ball (circle) is:
C = 2π r
Use the circumference to find the radius.
9.42 in = 2π r
r = 1.50 in
Use the radius to find the volume:
V = ⁴/₃ π (1.50 in)³
V = 14.13 in³
table
Number of half-lives 0 1 2 3 4 5 6
the remaining amount of substance (grams) 4,000 2,000 1,000 500 250 125 62.5
which equation best fits the data in the table
A. f(x)=1/2 (4,000)*
B. f(x)= 2,000 (1/2 ) *
C. f(x)= 4,000 (1/2)*
D. f(x)=4,000 (2*)
Answer:
Step-by-step explanation:
b