Xavier created a scatterplot and a trend line for data that he collected by comparing the number of minutes he spent playing a game and the number of levels he passed.
According to the graph, which combination of minutes played and levels passed seem most likely to be possible?
A) 2 minutes played and 3 levels passed
B) 17 minutes played and 35 levels passed
C) 20 minutes played and 9 levels passed
D) 50 minutes played and 19 levels passed
Answer:
Option (C)
Step-by-step explanation:
By using regression line calculator,
Equation of the regression line will be,
y = 0.4881x - 0.85714
Here y = Levels passed
x = Number of minutes played
Now we can check every option given.
Option (A)
For x = 2 minutes,
y = 0.4881(2) - 0.85714
= 0.11906
≈ 0.1
False.
Option (B)
For x = 17 minutes,
y = 0.4881(17) - 0.85714
= 8.2971 - 0.85714
= 7.44
≈ 7th level
False.
Option (C)
For x = 20 minutes
y = 0.4881(20) - 0.85714
= 9.762 - 0.85714
= 8.9
≈ 9th level
True.
Option (D)
For x = 50 minutes,
y = 0.4881(50) - 0.85714
= 24.405 - 0.85714
= 23.54786
≈ 24th level
False.
Therefore, Option (C) will be the correct option.
Answer:
c
Step-by-step explanation:
Carson is training for a race. He ran 12.56 miles on one day and 12.98 miles the next day. How much farther did he run the second day than the first day? *
Answer:
.42 miles more
Step-by-step explanation:
12.98 minus 12.56
please help I will mark brainlest and give 40 points
Answer:
15 is the slope and 70 is the y-intecpet
Step-by-step explanation:
The position of an object in a video game is represented by an ordered pair. The coordinates of the ordered pair give the
number of pixels horizontally and vertically from the origin. Use this scenario for Exercise.
a. Suppose that player A is located at (36, 315) and player B is located at (410, 53). How far apart are the players? Round to
the nearest pixel
b. If the two players move directly toward each other at the same speed, where will they meet?
c. If player A moves three times faster than player B, where will they meet? Round to the nearest pixel.
Answer:
a. 457 pixels b. 229 pixels c. 114 pixels
Step-by-step explanation:
a. Using d = √[(x₂ - x₁)² + (y₂ - y₁)²] to find the distance apart of the coordinates (x₁, y₁) and (x₂, y₂) where (x₁, y₁) = (36, 315) and (x₂, y₂) = (410, 53).
So, d = √[(x₂ - x₁)² + (y₂ - y₁)²]
= √[(410 - 36)² + (53 - 315)²]
= √[374² + 262²]
= √[139,876 + 68,644]
= √208,520
= 456.64
= 457 pixels to the nearest pixel.
b. Since the players are d' distance apart, and moving at a same speed of v, if they approach each other, they meet at time t. So player A covers a distance of d = vt. For them to meet, player B approaches and covers a distance of d = d' - vt. So they meet when vt = d' - vt.
Solving this, we have
vt = d' - vt
vt + vt = d'
2vt = d'
t = d'/2v
Substituting t into d = vt, we have
d = vt
= v(d'/2v)
= d'/2
= 457/2
= 228.5
≅ 229 pixels to the nearest pixel
c. Since the players are d' distance apart, and player A moves at a speed three times that of player B, if player B moves with speed v, then player A moves with speed 3v, as they approach each other, they meet at time t. So player A covers a distance of d = 3vt. For them to meet, player B approaches and covers a distance of d = d' - vt. So they meet when 3vt = d' - vt.
Solving this, we have
3vt = d' - vt
3vt + vt = d'
4vt = d'
t = d'/4v
Substituting t into d = vt, we have
d = vt
= v(d'/4v)
= d'/4
= 457/4
= 114.25
≅ 114 pixels to the nearest pixel
Look at the photo and you can see it
Answer:
huh wym?
you will see it?
Step-by-step explanation:
A block of wood is in the shape of a rectangular prism with dimensions (n+5) cm, (n+8) cm, and (n+14) cm. All faces of the block are painted, and then the block is cut into 1 cm cubes using parallel cuts to each face. If exactly half of the cubes have no paint on them, find the total number of cubes.
Answer:
The total number of cubes in the rectangular prism are 1,120 cubes
Step-by-step explanation:
The given parameters are;
The dimensions of the rectangular prism block of wood = (n + 5), (n + 8), and (n + 14)
The volume of the block of wood = (n + 5)×(n + 8)×(n + 14) = n³ + 27·n² + 222·n + 560
The quantity of the 1 cm cubes that have no paint = 1/2 of the total quantity = 1/2 the volume of the original cube
The cubes that have paint on them are the surface cubes, we have;
One layer of cube is removed from each of the eight sides, therefore, we have the dimensions of the cube rectangular prism that have no paint on them given as (n + 5 - 2), (n + 8 - 2), and (n + 14 - 2), which gives the dimensions as (n + 3), (n + 6), and (n + 12);
Therefore, we have
2 × (n + 3)×(n + 6)×(n + 12) = (n + 5)×(n + 8)×(n + 14)
2 × (n + 3)×(n + 6)×(n + 12) - (n + 5)×(n + 8)×(n + 14) = 0
Which gives;
n³ + 15·n² + 30·n - 128 = 0
n = 2
n = -17/2 - √(33)/2 = -5.6277
n = √(33)/2 - 17/2 = -11.3722
Therefore, given that the smallest dimension of the painted prism = (n + 5), the possible value for n = 2
The volume of the rectangular prism = (n + 5) × (n + 8) × (n + 14) = (2 + 5) × (2 + 8) × (2 + 14) = 1120 cm³
Given that the cuts are 1 cm³ each, the total number of cubes in 1,120 cm³ = 1,120 cubes.
PLZZZZ ANSWER
Martin drinks 1/4 of a litre of juice each day.
Juice costs £3.60 for a 2 litre carton and £2.00 for a 1 litre carton.
Martin buys enough juice to last for 2 weeks (14 days).
What is the lowest price Martin can pay for this juice?
Given :
Martin drinks 1/4 of a litre of juice each day.
Juice costs £3.60 for a 2 litre carton and £2.00 for a 1 litre carton.
To Find :
Martin buys enough juice to last for 2 weeks (14 days).
What is the lowest price Martin can pay for this juice.
Solution :
Amount of litre used in 14 days is :
V = 14× ( 1/4 )
V = 3.5 liter
Lowest price to pay is :
P = 2 × Cost of one 2 L carton
P = £(2 × 3.60)
P = £7.2
The lowest price Martin can pay for this juice is £7.2 .
Hence, this is the required solution.
I need helppp
Identify the slope and y-intercept.
m=
b=
Answer:
the slope is 1/8 or 8/1 and the b=7 i think hope this helped and correct me if i am wrong
Step-by-step explanation:
WHOEVER ANSWERS FIRST GETS BRAINLIEST
A regular six-sided number cube is rolled 300 times. Select the outcomes that are
expected to occur about 50 times.
O A. A number greater than 4 is rolled.
B. 3 is rolled.
O C. A number less than 2 is rolled.
O D. An odd number is rolled.
E. 5 is rolled.
What is the slope of the following line
The formula for area of a triangle is given by: A=bh/2 Rearrange the formula to solve for b
Answer:
b = 2A
h
Step-by-step explanation:
A=bh/2
2A = bh
b = 2A
h
Answer:
b=(2a)/h
Step-by-step explanation:
Multiply both sides by 2
2A=bh
Divide both sides by h
(2a)/h=b
-2a3 - 3a2 + 4a + 6, 2a3 + 5a2 + 7
sum the expression
Answer:
2a2 + 4a + 7
Step-by-step explanation:
As, - (2a3 - 3a2 + 4a + 6) + (2a3 + 5a2 + 7)
= 2a2 + 4a + 13
PLEASE HELP, I WILL MARK BRANLIEST AND THANKS!!!
Draw the shape made by slicing the CUBE (THINK: A CUBE HAS 6 SIDES THAT ARE THE SAME MEASURE) parallel to its bases.
Step-by-step explanation:
hope it helps you
i think your question was this only
HELPPPP FASTTTT
PLEASEEEEEEEEEEEE
Answer:
Function A has a greater slope than Function B.
Step-by-step explanation:
An easy way to solve this would be to graph function B and see which line is steeper. The steeper line always has greater slope.
Answer:
A
Step-by-step explanation:
its function would be y=4x+2
The formula for throwing a baseball in the air is represented by the attached function, where h represents the height of the ball in inches, and t represents time. How high is the baseball after 3 and a half seconds?
h(t)=-3t^2+12t+40
Answer:
45.25 in
Step-by-step explanation:
To solve this question you would plug 7/2 or 3.5 in for t and solve for h(t).
h(t)=-3(7/2)^2+12(7/2)+40
=-3(49/4)+(84/2)+40
=(-147/4)+42+40
=-36.75+42+40
=45.25 in
I need help these. Thank you. :)
Answer:
the answer is 3 hope this helps
hey bro's help me!!
Answer:
-7 and 12 gl
Step-by-step explanation:
Answer:
1. -7
2. 12
Step-by-step explanation:
Hope this helps :)
A gallon of Moo Milk costs $5.12. What is the price, in dollars, of an 8 ounce glass of Moo Milk?
There are 128 ounces in 1 gallon
Answer:
Your answer is 42
please mark me brain list
The ratio of the weight of copper and zinc in an alloy is 3:2. Find the weights of copper and zinc in the alloy of 140g.
Answer:
Given the ratio of copper and zinc in an alloy is 5:3.
Let weight of copper and zinc be 5x and 3x.
Then according to the problem we have,
5x=30.5
or, x=6.1
Then weight of zinc is 3×6.1=18.3 g.
pls give brainlist
Step-by-step explanation:
A pancake mix requires 5 cups of flour for every 10 pancakes. How much flour is used per pancake?
So you have 5 cups of flour for 10 pancakes so what you want to do is just divide 10 by 5 and you get your answer of 2 :)
I really need help please I will mark you as brainlist
Answer: 30
Step-by-step explanation:
Which answer choice shows 7.931 rounded to the nearest half?
A. 7
B. 7.5
C. 8
D. 8.5
A cleaning company charged $125 to clean a 2500 square foot house. The same company charged $146 to clean a 3200 square foot house. Write an equation in slope-interceptiom to represent the total cost, y, to clean a house with x square feet. Then, find the total cost to clean a house that is 4500 square feet.
Answer:
The cost is y = $185
Step-by-step explanation:
Let us have points spelt out here
(2500,125) and (3200,146)
The general form of a straight line equation is;
y = mx + b
where m is slope
So to calculate the slope in this case, we have
m = (146-125)/(3200-2500)
m = 21/700 = 0.03
So we have the equation as
y = 0.03x + b
To get b, we use any of the two points
Let us use (2500,125)
So we have
125 = 0.03(2500) + b
125 = 75 + b
b = 125-75
b = 50
So the complete equation of the line is;
y = 0.03x + 50
So here, we want to find the cost of a house with 4500 square feet
simply substitute 4,500 for x
y = 0.03(4500) + 50
y = 135 + 50
y = $185
What is the range of the function graphed on the grid? { x │ x = -2, 2, 4} {y│-3 ≤ y ≤ 4} {y│ y = -3, 0, 4} { x │-2 ≤ x ≤ 4}
Answer:
The image is sideways.
But if your graph is like on the image, then the answer is: {y│-3 ≤ y ≤ 4}
Range is the set of y values
Least function value is -3 and greatest is 4
Answer:
{y│-3 ≤ y ≤ 4}
Step-by-step explanation:
if f(x)=x-5/4 and f-1(x)=25 find the value of x
Answer:
ANSWER
g=f
−1
f(g(x))=x
Differentiate w.r.t.x
f
′
(g(x))⋅g
′
(x)=1
∴
1+(g(x))
4
1
⋅g
′
(x)=1
g
′
(x)=1+[g(x)]
4
what is 0.5 divided by 13.5? help
Answer is 0.037
Hope this helps:)
Find the area of the figure
Answer:
45 I'm pretty sure. so it 45
Answer:
The figure is 5.5in^2.
Step-by-step explanation:
To find the area of the triangle portion, we will use the formula for area of a triangle, [tex]\frac{bh}{2}[/tex], where b = base and h = height.
So lets find our variables,
b = 3
h = 3
So we can plug that into our equation and find the area,
3 · 3 = 9 and 9 ÷ 2 = 4.5
So the area of the triangle is 4.5in^2
To find the area of the square portion, we will use the formula for the area of a square or rectangle, l · w, where l = length and w = width
So lets find our variables,
l = 1
w = 1
So 1 · 1 = 1in^2
To find the total area we will add the areas of the two components together,
4.5 + 1 = 5.5in^2
So the area of the total figure is 5.5in^2.
Give an example of a time when you used estimation to solve a problem.
Answer:
I wanted to know how many stars are in the sky above my house I counted and made the estimate of 80
i need help plz i need 100 or imma fail plz help me
Answer:
B
Step-by-step explanation:
PLS GIVE BRAINLIEST
Answer:
B
Step-by-step explanation:
The triangle reflects over the y-axis ,which is the vertical line, and then has a translation 2 units down
of 10
Find the gradient of the line segment between the points (2,-2) and (0,-6).
Answer:
The answer is 2Step-by-step explanation:
The gradient of a line given two points can be found by using the formula
[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\ [/tex]
From the question we have
[tex]m = \frac{ - 6 - - 2}{0 - 2} = \frac{ - 6 + 2}{ - 2} = \frac{ - 4}{ - 2} = 2 \\ [/tex]
We have the final answer as
2Hope this helps you