Answer:
Option B. y = 14x - 3.5
Number of wins for the team will be 24.5
Step-by-step explanation:
Since line of best fit passes through two points (0.25, 0) and (0.75, 7)
Let the equation of the line of best fit is, y - y' = m(x - x') + c
Here 'm' = Slope of the line
= [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
= [tex]\frac{7-0}{0.75-0.25}[/tex]
= [tex]\frac{7}{0.5}[/tex]
m = 14
Equation of the line of best fit passing through a point (0.25, 0) will be
y - 0 = 14(x - 0.25)
y = 14x - 3.5 [Option B]
Now number of wins for a team that scores 2 goals per match will be,
For x = 2
y = 14x - 3.5
y = 14×2 - 3.5
= 28 - 3.5
= 24.5 wins
Therefore, number of wins for the team will be 24.5
Answer:
B on khan and 24.5
Step-by-step explanation:
How can you use a table to solve an inequality
Answer:
Step-by-step explanation:
Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own.
But these things will change direction of the inequality: ...
Don't multiply or divide by a variable (unless you know it is always positive or always negative)
Monica earned twice as much as Samuel mowing lawn Monica earned $56. Write an equation to find,s, the amount of money Samuel earned ?
Answer:
see below
Step-by-step explanation:
Monica earned twice as much as Samuel
m = 2*s
Divide each side by 2
1/2 m = 1/2 ( 2s)
1/2 m = s
If monica earned 56
1/2 (56) = s
28 =s
A school wants to have a metal gate placed around it. However they only want to cover three sides of the school and they only have 2000 feet of gate. What are the dimensions of the school if the area is 240,000 square feet?
Answer:
Width = 139.445 ft and Length = 1721.11 ft or
Width = 860.555 ft and Length = 278.89 ft
Step-by-step explanation:
If the school has a rectangular shape, we have that its perimeter and area are:
Perimeter = 2*Length + 2*Width
Area = Length * Width
If we just want to cover 3 sides of the school, we can affirm that:
2000 = Length + 2*Width (eq1)
And the area is 240,000 ft2, so:
240000 = Length * Width (eq2)
From (eq1), we have that:
Length = 2000 - 2*Width
Using this value in (eq2), we have:
240000 = (2000 - 2*Width) * Width
240000 = 2000*Width - 2*Width^2
Width^2 - 1000*Width + 120000 = 0
Using Bhaskara's formula, we have:
Delta = 1000^2 - 120000*4 = 520000
sqrt(Delta) = 721.11
Width1 = (1000 + 721.11)/2 = 860.555 ft
Width2 = (1000 - 721.11)/2 = 139.445 ft
If we use Width = 139.445 ft, we will find Length = 1721.11 ft
If we use Width = 860.555 ft, we will find Length = 278.89 ft
Both pairs of dimensions are valid answers, as they would use 2000 feet of gate and the area of the school would be 240,000 ft2
David drove 634 miles on 19.8 gallons of gas.
What was his gas mileage, rounded to the nearest mpg?
A) 24 mpg
B) 27 mpg
C) 32 mpg
Answer:
C) 32 mpg
This is because to get his miles per gallon,
We divide 634 miles by 19.8 miles to give us 32.0202020....... rounded to 32 mpg
Audrina brought $35.25 to the art supply store. She bought a brush, a sketchbook, and a paint set. The brush was 1 6 as much as the sketchbook, and the sketchbook cost 3 4 the cost of the paint set. Audrina had $1.50 leftover after buying these items. What was the cost of each item?
Answer:
The brush cost $5.44, the sketchbook cost 10.88 and the paint set cost 14.50, approximately.Step-by-step explanation:
Givens
Audrian has $35.25The brush was 1/6 as much as the sketchbook.The sketchbook cost 3/4 the cost of the paint set.Audrina had $1.50 leftover.She bough a brush, a sketchbook and a paint set.Based on the given information, we can form the following equations.
[tex]b=\frac{1}{2}s[/tex]
Where [tex]b[/tex] is the brush and [tex]s[/tex] is the sketchbook.
[tex]s=\frac{3}{4}p[/tex]
Where [tex]p[/tex] is paint set.
Now, the sum of all three items would give $1.50 of leftover.
[tex]p+b+s=35.25-1.50[/tex]
Replacing expressions, we have
[tex]p+\frac{1}{2}s+\frac{3}{4}p=30.75\\ \frac{7}{4}p +\frac{1}{2}(\frac{3}{4} p)=30.75\\\frac{7}{4}p+\frac{3}{8}p=30.75\\ \frac{56p+12p}{32}=30.75\\ 68p=984\\p=\frac{984}{68}=14.50[/tex]
Then, we use this value to find the other variables
[tex]s=\frac{3}{4}(14.50)=10.88[/tex]
[tex]b=\frac{1}{2}(10.88)=5.44[/tex]
Therefore, the brush cost $5.44, the sketchbook cost 10.88 and the paint set cost 14.50, approximately.
Answer: paint set costs $18
sketchbook costs $13.5
Brush costs $2.25
Step-by-step explanation:
Let x represent the cost of the paint set.
The sketchbook cost 3/4 the cost of the paint set. It means that the cost of the sketchbook is
3/4 × x = 3x/4
The brush was 1/6 as much as the sketchbook. It means that the cost of the brush is
1/6 × 3x/4 = 3x/24 = x/8
Audrina brought $35.25 to the art supply store. If Audrina had $1.50 leftover after buying these items, it means that the amount spent on the items is
35.25 - 1.5 = 33.75
Therefore,
x + 3x/4 + x/8 = 33.75
Multiplying through by 8, it becomes
8x + 6x + x = 270
15x = 270
x = 270/15
x = 18
The cost of the sketchbook is
(3 × 18)/4 = 13.5
The cost of the brush is
1/8 × 18 = 2.25
School band sold 30 raffle tickets each ticket is labeled with a number 1 to 31 winning ticket will be drawn what is the probability that the number of the winning ticket will be of four or the number 19 enter your answer as a fraction in the simplest form in the Box
Answer:
0.27
Step-by-step explanation:
To solve this problem, we will use Set Theory Approach to Probability.
Let U = the Sample Space which consists of all possible tests.
Of course U = {1,2,3 .... ,30}
So, no elements in that.
U = n = 30
Let Q = the event bearing a multiple of 4 No winning ticket, and,
R = the case that has the No. 19 winning ticket
∴
Q = { 4, 8, 12 , 16 , 20, 24 , 28} , and
R = {19} , so that
Q ∩ R = ϕ
P(Q ∩R ) = 0
As, n(Q) = 7 , n(R) = 1 , we have,
P (Q) = [tex]\frac{n (A)}{n(U)}[/tex] = [tex]\frac{7}{30}[/tex], and P (R) = [tex]\frac{1}{30\\}[/tex]
P (Q∪R) = P(Q ) + P(R) − P(A∩B) = [tex]\frac{7}{30}[/tex] + [tex]\frac{1}{30\\}[/tex] − 0 = [tex]\frac{8\\}{30\\}[/tex]
≅ 0.27 .
whats the answer to 4(6p+9y)
Answer: The answer is 60p.
Step-by-step explanation:
1) You first simplify what is in parenthesis.
(6p+9p) = (15p)
2) Next, you multiply (15p) by 4.
4(15p) = 60p
3) You simplified the expression of
4(6p+9p) to 60p.
pls answer i will make u BRAINLIST >_< HELP ME PLS
Answer:
see below
Step-by-step explanation:
1/2 + 4/6
Get a common denominator of 6
1/2 * 3/3 = 3/6
3/6 + 4/6 = 7/6
We change back to a mixed number
1 1/6
Answer:
7/6 or 1 1/6
Step-by-step explanation:
In this case, you're adding 1/2 plus 4/6.
One strategy you can use to solve this problem is by getting the common denominator.
1/2 is equal to 3/6.
Then you could add 3/6 to 4/6 and you'll get 7/6.
Now depending on the teacher they might want you to have an improper fraction or mixed number.
You can get this mixed number by dividing 7/6 which equals 1 1/6.
Hope this helped :)
Someone please help me
Answer:
1 infinity
2 one
3 no
4 one
5 infinity
Step-by-step explanation:
Can someone please help me???
Answer:
B.) 2 / 15
Step-by-step explanation:
: )
how many times smaller is the surface area of a cube if the side length is multiplied 1/2
Answer:
1/4, or 4 times smaller
Step-by-step explanation:
Since the surface area of a cube is just the combination of the area of all of the square sides, and the formula for those is s^2, if the side length was decreased by 1/2 then the surface area would decrease by (1/2)^2=1/4. Hope this helps!
Can you please help
#6 GRADE
Answer:
the interger would be 15 because you earn 15 so therfore it would be 15.
Step-by-step explanation:
Find the surface area of the composite shape.
A: 2658.2m²
B: 257.97m²
C: 2501.2m²
D: 2579.7m²
Answer:
c
Step-by-step explanation:
[tex]25\pi + (8*10\pi)+[(35*12)-25\pi]+(35*12)+ 2(15*12)+2(35*15)=\\25\pi +80\pi + (420-25\pi) + 420 + 360 + 1050=\\105\pi-25\pi + 840 +1410=\\80\pi+2250=\\2501.32741229[/tex]
A car traveled 360 miles in 4 hours. If its speed were to be 15 mph slower, how long would it take to travel the same distance?
Answer:
4.8 hours
Step-by-step explanation:
First, divide the distance by time to get velocity.
S = D/T
S = 360/4
S = 90 mph
Then, subtract 15 from 90 to get the new speed.
90 - 15 = 75
Lastly divide the distance by the new speed to get time.
T = D/S
T = 360/75
T = 4.8
Therefore, it would take the car 4.8 hours to travel 360 miles at 75 miles per hour.
What is a
1/3 + a = 5/4
Mr. Tram was planning his trip from Dallas, TX to Detroit, MI. He knows that the total distance he needs to cover is 1620 km. He usually drives at a speed of 60 km per hour. If he is willing to drive up to 8 hours per day, how many days will this trip take?
The trip will take 3 days and 3 hours to complete.
What is division?The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.
Given:
Mr. Tram was planning his trip from Dallas, TX to Detroit, MI.
He knows that the total distance he needs to cover is 1620 km. He usually drives at a speed of 60 km per hour.
That means, the total time,
= 1620/60
= 27 hours.
He is willing to drive up to 8 hours per day.
The trip will take 27/8 = 3 days and 3 hours.
Therefore, the trip will take 27/8 = 3 days and 3 hours.
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what is the y-intercept of the quadratic function f(x) = (x-6)(x-2)
Answer:
Its letter B.
Step-by-step explanation:
on edge 2021
The y-intercept of the quadratic function f(x) = (x-6)(x-2) is (0,12).
Given,
f(x) = (x-6)(x-2)
We need to find the y-intercept of this given function f(x).
What is the y-intercept?The point at the y-axis where the function passes through is called the y-intercept.
We take x = 0 for finding y-intercept.
We have,
f(x) = (x-6)(x-2)
Let f(x) = y.
y = (x-6)(x-2)
Put x = 0 in y.
y = (0-6)(0-2)
y = -6 x -2 = 12.
The y-intercept is at 12 on the y-axis and we represent it as (0, 12).
Thus the y-intercept is (0,12).
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Solve for X
x - 8= -10
a. x=2
b. x = -2
c. x = 18
d. x= -18
Answer:
b. x = -2
Step-by-step explanation:
x - 8 = -10
x = -10 + 8
x = -2
You have been tracking how much you spend on gas every month for several months and found that on average you spend about $60 per month. If you had to guess, what would you expect the IQR (Interquartile Range) of your gas spending to be? Would $1, $5 or $100 be most logical? Give statistical reasoning to back up your answer.
Answer: $5
Step-by-step explanation: The interquartile range (IQR) refers to the difference between the upper(75%) quartile and lower(25%) quartile of a distribution. Hence, ensuring that the middle 50% is being captured. With the average given as $60, having a interquartile range capturing the middle 50% as $1 seems so small from a statistical stand point. Similarly, an interquartile range of $100 capturing the middle 50% is also too large and nearly impossible if the average price is $60. However, a price of $5 sit well in between considering the average price of $60
Determine if line AB is tangent to the circle.
Answer:
Is a tangent
Step-by-step explanation:
~ By definition, a tangent to circle is a straight line, presently perpendicular to a radius if one. In this case tangent AB should be perpendicular to the radius. If we were to call the center O, we would say AB should be perpendicular to OA. ~
1. Now let us say at the moment that AB is a tangent. If that is so, it should be that m∠A = 90 degrees ( ° ), provided AB is ⊥ to OA by definition.
2. Now the triangle ABO is a right triangle, and with that is should be that Pythagorean Theorem is applied. This can help us prove if AB is a tangent or not. If Pythagorean Theorem is not applicable it would mean ABO is not a right angle triangle, that AB is not ⊥ to OA, and thus can't be a tangent.
3. Let us say x ⇒ side OA, and that side BO = 9 + 8 + 17:
AB^2 + OA^2 = BO^2,
15^2 + x^2 = 17^2,
x = 8
4. Now there are two radii present, OA is only one of them. As radii are ≅, OA = other radii, 8 = 8
5. This proves that Pythagorean Theorem is applicable, that ABO is a right triangle, that m∠A = 90°, and that by definition AB is a tangent
* I have already answered this question before *
What is x?
7(x – 5) = 9x – 3
Answer:
x = -16
Step-by-step explanation:
[tex]7(x-5) =9x-3 \\7x -35 = 9x - 3\\3- 35 = 9x - 7x\\-32 = 2x\\x = \frac{-32}{2}\\\huge \red{\boxed{x = -16}}[/tex]
Answer:
x = -16
Step-by-step explanation:
We are presented with the equation 7( x - 5 ) = 9x - 3 and we are asked to find the value of x. The first thing to do with equations with brackets is expand them out to make solving the equation easier. Then you want to collect all the 'x' terms to one side and all the numerical values to the other so we can make solving the equation easier.
→ 7( x - 5 ) = 9x - 3
⇒ Expand out the brackets
→ 7x - 35 = 9x - 3
⇒ Minus 9x from both sides to collect the 'x' terms
→ -2x - 35 = -3
⇒ Add -35 to both sides to isolate -2x
→ -2x = 32
⇒ Divide both sides by -2 to isolate x
→ x = -16
Simplify by combining like terms: 9x - 14y + 9 + 13y
Answer:
9x-y+9
Step-by-step explanation:
so what you do first is combine -14y and 13 y and you get -y
HELP!!! THIS IS URGENT!!!
Explain how you could use less than or equal to and greater than or equal to in a real life scenario.
Please come up with an original scenario! I really need help! Giving 35 points!
Answer:
Step-by-step explanation:
Consider a utlity bill which shows a minimum initial cost plus variable costs dependent upon how many units are sold.
Then: total cost ≥ (fixed cost) + (unit cost)(number of units sold)
This involves the "equal to or greater than" concept.
A bag has 11 red marbles and 4 yellow marbles. Half of the yellow marbles are made of plastic. A marble is selected at random from the bag. What is the probability that it is a yellow, plastic marble? Write your answer as a fraction in simplest form.
Answer:
Step-by-step explanation:
total marbles=11+4=15
plastic yellow marbles=4/2=2
P=(plastic marbles)/(total marbles)=2/15
Answer:
2/15
Step-by-step explanation:
11+4 = 15 marbles
Half of the yellow marbles are made of plastic = 2 plastic yellow marbles
P(yellow plastic marbles) = number of yellow plastic marbles / total
=2/15
Use the graphing calculator to graph each function
and find the matching graph.
Cube Root
f(x) = x
DONE
Exponential
fx)= 2²
DONE
Logarithmic
f(x) = logx
Cute Root: C
Exponential: D
Logarithmic: A
A function assigns the value of each element of one set to the other specific element of another set. The options can be matched with the function as C, D, and A, respectively.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
The function of different functions is mentioned below.
f(x) =∛x → Option C → Red Linef(x) = 2ˣ → Option D → Green Linef(x) = log(x) → Option A → Blue LineHence, the options can be matched with the function as C, D, and A, respectively.
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Giving 15 points need answer ASAP
Answer:
[tex] 2 \frac{2}{3} [/tex]
Step-by-step explanation:
[tex] - 2 \frac{1}{3} - ( - 5) = - \frac{(6 + 1)}{3} + 5 \\ \\ = - \frac{7}{3} + 5 \\ \\ = - \frac{7}{3} + \frac{15}{3} \\ \\ = \frac{ - 7 + 15}{3} \\ \\ = \frac{8}{3} \\ \\ = 2 \frac{2}{3} [/tex]
find the two smallest possible solutions to part 1a
============================
Work Shown:
12*sin(2pi/5*x)+10 = 16
12*sin(2pi/5*x) = 16-10
12*sin(2pi/5*x) = 6
sin(2pi/5*x) = 6/12
sin(2pi/5*x) = 0.5
2pi/5*x = arcsin(0.5)
2pi/5*x = pi/6+2pi*n or 2pi/5*x = 5pi/6+2pi*n
2/5*x = 1/6+2*n or 2/5*x = 5/6+2*n
x = (5/2)*(1/6+2*n) or x = (5/2)*(5/6+2*n)
x = 5/12+5n or x = 25/12+5n
these equations form the set of all solutions. The n is any integer.
--------
The two smallest positive solutions occur when n = 0, so,
x = 5/12+5n or x = 25/12+5n
x = 5/12+5*0 or x = 25/12+5*0
x = 5/12 or x = 25/12
--------
Plugging either x value into the expression 12*sin(2pi/5*x)+10 should yield 16, which would confirm the two answers.
Answer:
a
Step-by-step explanation:
12sin(⅖pi x) + 10 = 16
sin(⅖pi x) = 6/12
⅖pi x = sin^-1(½)
⅖pi x = pi/6, pi - pi/6
⅖pi x = pi/6, 5pi/6
x = 5/12, 25/12
Identify the error below. Then, solve the equation correctly.
Answer:
Error: +3x should be -3x
x should equal 3
Step-by-step explanation:
In this problem, you have to pay attention how values are transferred from one side to the other. This includes paying attention t the signs.
In 3x + 4 = 8x - 11, you want to try an keep all the values positive
3x + 4 = 8x - 11
- 3x - 3x
4 = 5x - 11
+11 +11 <--This part of the equation was correct.
15 = 5x
/5 /5 <--This part of the equation should result in dividing by 5
3 = x
Hope this helps!
Please help me in this question.Easy question.
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You can use Pythagoras theorem as it is a right angle
a^2 + b^2 = c^2
where 'c' is the hypotenuse
Rearrange this to find a side length
c^2 - a^2 = b^2
where 'b' is the missing length
10^2 - 8^2 = b^2
100 - 64 = b^2
b^2 = 36
Square root this to get the answer
b = 6cm
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Which statements are true ?
Answer:
The true statements
Step-by-step explanation:
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