Answers
1) The equation of a line of best fit is; y = -1.15x + 102.8
2) The predicted monthly cost for an average temperature of 25°F is $74.05
How to find the equation of the line of best fit?The equation of a line of best fit is represented by the equation;
y = mx + c
where;
m is the slope
c is the y-intercept
1. To calculate the slope here, we will use the formula;
Slope = (y₂ - y₁)/(x₂ - x₁)
Using two coordinate points on the scatter plot, (72, 20) and (20, 80), we have the slope as;
Slope (m) = (80 - 20)/(20 - 72)
Slope = 60/-52
Slope = -1.15.
Plug in -1.15 for m and (a, b) = (72, 20) into the formula; y = mx + c to get;
20 = -1.15(72) + c
c = 20 + 82.8
c = 102.8
The equation will now be;
y = -1.15x + 102.8
2. Monthly heating cost, y, for a month with an average temperature of 25°F (x) will be calculated by plugging in 25 for x in the equation of line of best fit gotten earlier to get;
y = -1.15(25) + 102.8
y = 102.8 - 28.75
y = $74.05
Read more about Equation of Line of best fit at; https://brainly.com/question/26127204
#SPJ1
Related Questions
What is the domain of the function F(x) = 2 cos(3x - 1)?
A. [-2, 2]
B. [-1, 1]
C. All real numbers
D. [-3,3]
Answers
Answer:
All real numbers
Step-by-step explanation:
Based on the experiment if a card is chosen 200 times how many times would you expect to pick a card without stripes?
Answers
The number of expected times to pick a card without strips is 130.
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
The percentage of stripes from the 120 times.
= 42/120 x 100
= 35%
Now,
Based on this experiment,
The number of strip cards out of 200 times.
= 35% of 200
= 35/100 x 200
= 35 x 2
= 70
The number of times to pick a card without strips.
= 200 - 70
= 130
Thus,
The expected number of times to pick a card without stripes is 130.
Learn more about percentages here:
https://brainly.com/question/11403063
#SPJ1
The complete question is given below.
what is Negative ninety two hundredths as number
Answers
In this figure please see questions
Answers
Answer:
15,700
Step-by-step explanation:
The formula is 3.14(r^2)h
Hope this helped :)
Jacob runs 2652 yards in 15 minutes. Michael runs 7920ft in .375 hours. who will win the race?
Answers
Answer:
I think Jacob wins the race
Select each expression that is equivalent to 4n+12
A. 16n
B. 2n+6+2n+6
C. 2(2n+4)+2
D. 4(n+3)
E. 3(n+4)+n
F. n+n+n+n+12
Answers
Answer:
B D E F
Step-by-step explanation:
This function describes the time, t(d), in seconds, an object takes to hit the ground after falling d feet.
t (d) =sqrt{d/16}
How long will it take for an object to fall 1,600 feet?
A. 4 seconds
B. 10 seconds
C. 100 seconds
D. 160 seconds
Answers
Answer:
help me plzz
Step-by-step explanation:
The velocity of a particle moving along the x-axis is v(t) = cos(2t), with t measured in minutes and v(t) measured in feet per minute. To the nearest foot find the total distance travelled by the particle from t = 0 to t = π minutes
What is the difference In -4-(-7)
Answers
Answer:
Step-by-step explanation:The Apple iPhone 7 has a 4.7-inch size display, while the iPhone 7 Plus has a 5.5-inch display. The standard iPhone 7 has a 1334 x 750 pixel resolution, while the Plus has a Full HD resolution meaning their pixel densities are 326ppi and 401ppi, respectively.
Gabby assumed she could sell 45 boxes of cookies by Friday, but she only sold 26 boxes. What was Gabby's percent error?
Answers
Answer:
73.07%
Step-by-step explanation:
Given that,
Actual value of sold cookies = 26
Assumed value of sold cookies = 45
We need to find Gabby's percent error. The percentage error in a value is given by :
Error = ](Assumed value - Actual value)/Actual value]× 100
So,
[tex]\%=\dfrac{45-26}{26}\times 100\\\\=73.07\%[/tex]
So, Gabby's percent error is equal to 73.07%.
Answer: 73.1
Step-by-step explanation: Although the answer is 73.07 if you're in Acellus they want you to round to the nearest percent so the answer should be 73.1
What do the properties of polynomial addition mean? Complete each statement.
The closure property states that the sum of two polynomials is a
The commutative property states that changing the order of two or more terms
~ the value of the sum.
The associative property states that the way in which two or more terms are grouped in a sum
the value.
Answers
The Complete statement are:
The closure property states that the sum of two polynomials is a polynomial.The commutative property states that changing the order of two or more terms does not change the value of the sum.The associative property states that the way in which two or more terms are grouped in a sum does not change the value of the sum.What is the properties of polynomial addition about?The properties of polynomial addition include closure, commutativity, and associativity.
These properties of polynomial addition make it easy to perform arithmetic operations with polynomials because they have predictable results and the order in which the polynomials are grouped or ordered does not change the final result.
Therefore, In simple terms, closure property ensures that the sum of two polynomials is also a polynomial, commutative property ensures that the order of the polynomials does not change the sum and the associative property ensures that the grouping of the polynomials does not change the sum.
Learn more about closure property from
https://brainly.com/question/19340450
#SPJ1
Answer:
Step-by-step explanation:
The solution set of the equation x² + 5x = 0 is:
A. {0}
B. {5}
C. {-5}
D. {0, -5}
Answers
Answer:
D
Step-by-step explanation:
x²+5x=0
by factorizing;
x(x+5)=0
x=0 or x+5=0
Therefore, x= 0 or x=-5 ---> {0, -5}
Which expression is equivalent to 5-3(x+2)?
A. -3x - 1
B. -3x+10
C. 2x + 4
D. 2x-6
Answers
5-3(x+2)
5-3x-6
-3x+5-6
-3x-1
mila was baking cookies this weekend. she took 3 over 20 of the cookies to school on monday. and she gave 7 over 20 of the cookies to her neigbor. how much of the cookies did she gave away?
A
G
O
N
S
A
Answers
Answer:
Step-by-step explanation:
As she is baking cookies = 3/20
she egave it to her neigbour = 7/20
Remaining = ?
R = 3/20 -7/20 = -1/5
2//2/2/3/2/2//3/3/3//3/3/4/5/5
Answers
Answer:
can u be more specific so i can properly help u
Explanation:
pls explain and i will edit my answer
An 8 ¼ -inch circular power saw blade rotates at 4400 revolutions per minute. (Round your answers to two decimal places.)
(a) Find the angular speed of the saw blade in radians per minute. ___________________
(b) Find the linear speed (in feet per minute) of the saw teeth as they contact the wood
being cut.
___________________
Answers
a) The angular speed of the saw blade in radians per minute is;
460.77 radians per minute.
b) The linear speed (in feet per minute) of the saw teeth as they contact the wood being cut is; 7.46 * 10⁻⁴ ft/min
How to find angular and linear speed?a) Angular speed is defined as the speed of the object in rotational motion
The formula of the angular speed is; ω = θ / t
where;
ω is the angular speed
θ is the angular rotation
t is the time taken.
We are given;
In one revolution, the angle made is 2π radian.
In 4400 revolutions = 2π * 4400 radian
= 8800π radians
We know that ,
1 hour = 60 minute.
Thus;
Angular speed = 8800π/60
= 460.77 radians per minute
b) The relationship between the linear speed and angular speed in a uniform circular motion is given by the formula;
s = rω
where;
s is the linear speed
r is the radius
ω is the angular speed.
radius = 8 ¼ -inch/2 = 33/8 inches
Conversion from inches to feet gives;
33/8 inches = 0.34375 ft
Thus;
s = 0.34375/460.77
s = 7.46 * 10⁻⁴ ft/min
Read more about Angular and linear speed at; https://brainly.com/question/29345009
#SPJ1
I WILL GIVE U BRAINLIEST AND THANKS AND 5 STARS
-------------------------------------------------------------------------------------
please help this is very important
Answers
Answer:
C
Step-by-step explanation:
Answer:
Area of a rectangle=LxW
There's 2 rec's there
For the first
A= 1/3.s
For the second
L=12
W= 1/3
A = 1/3 . ( 12)
Total Area = 1/3.s + 1/3(12)
Now This can also be simplified by factorization
Total Area = 1/3(s+12)
We factored out 1/3 from both sides.
The question asked to select ALL THE EXPRESSION That represents the total area.
SO OPTION C and E
What is 10/83 simplified
Answers
Answer:
5/19
Step-by-step explanation:
To identify if a fraction is further divisible or not, we find a common number that the numerator and denominator both can be divided by. In this case, 10/83 cannot be commonly divided any further than it is. Therefore, the fraction is in its simplest form.
1. In the diagram below which expression represents x, the measure of the exterior angle shown?
Answers
Answer:
a) a + b
Step-by-step explanation:
The value of the exterior angle x will be (a+b).
What is an exterior angle?The angle made by the two lines of the figure which lie on the outside of the closed figure is called the exterior angle.
The exterior angle is the sum of the two opposite internal angles of any figure.
The exterior angle in the given figure will be equal to x = a+b the sum of the two opposite interior angles.
Therefore the value of the exterior angle x will be (a+b).
To know more about exterior angles follow
https://brainly.com/question/2546141
#SPJ2
A pipe has 9/16" that is threaded, but you need to trim 4/32" off of the threaded part. How long will the threaded be after the trim? a. 17/32, b. 7/8, c. 7/16, d/ 15/32
Answers
9 • 2 = 18
16 • 2 = 32
Our new fraction is 18/32. Now to subtract:
18/32 - 4/32 = 14/32
With our new fraction, we can divide the numerator and denominator by 2 to find that:
18/32 - 4/32 = 7/16
Hence, our final difference is option C.
find the slope for 1-6
Answers
Answer:
1) 10/3
2) -1./3
3) -2/5
4) 1
5) undefined
6) 0
Step-by-step explanation:
Find two easy to read points. Go from one point to the other by going vertically first then horizontally. Moving up is positive and down is negative. Moving right is positive and left is negative.
slope = rise/run = (difference in y)/(difference in x)
1) slope = 10/3
2) slope = -1/3
3) slope = -2/5
4) slope = 1/1 = 1
5) slope = undefined (The slope of a vertical line is undefined.)
6) slope = 0 (The slope of a horizontal line is 0.)
-58 3 - 3 1 - 0
Solve.
Answers
Answer:
[tex]-9\frac{1}{4}[/tex]
Step-by-step explanation:
Rewrite our equation with parts separated
-5 - [tex]\frac{3}{4}[/tex] - 3 - [tex]\frac{1}{2}[/tex]
Solve the whole number parts
-5 - 3 = -8
Solving the fraction parts and Find the LCD
LCD = 4
[tex]-\frac{3}{4}[/tex] - [tex]\frac{2}{4}[/tex] = [tex]-\frac{5}{4}[/tex]
Simplify
[tex]-\frac{5}{4} = -1\frac{1}{4}[/tex]
Combine the whole and fraction parts
8 - 1 - [tex]\frac{1}{4}[/tex] = [tex]-9\frac{1}{4}[/tex]
Mark as Brainllest
Select the correct answer. Consider the function f(x) = 2x and the function g(x) shown below. How will the graph of g(x) differ from the graph of f(x)? gx+2f(x)=2(2>x) A. The graph of g(x) is the graph of f(x) stretched horizontally by a factor of 2. B. The graph of g(x) is the graph of f(x) shifted to the right by a factor of 2. C. The graph of g(x) is the graph of f(x) stretched vertically by a factor of 2. D. The graph of g(x) is the graph of f(x) shifted up by a factor of 2.
Answers
Answer:
the answer to your question is A
Step-by-step explanation:
The graph of g(x) is the graph of f(x) stretched horizontally by a factor of 2.
Option A is correct.
What is a Function?A mathematical phrase that establishes the link between an independent variable and a dependent variable (the dependent variable).
As per the given data:
We are given the function f(x) and the function g(x), also we are given the equation which related the functions f(x) and g(x).
We have to find the transformation that f(x) will undergo in order to get the graph of the function g(x).
From the given data:
f(x) = 2x
g(x) + 2f(x) = 2
∴ g(x) = 2 - 2f(x)
Now from the above equation we can clearly see that when 2 will be multiplied in f(x) its graph will be stretched horizontally by a factor of 2.
The graph of g(x) is the graph of f(x) stretched horizontally by a factor of 2.
Hence, The graph of g(x) is the graph of f(x) stretched horizontally by a factor of 2.
To learn more about Function, click:
brainly.com/question/12431044
#SPJ7
Evaluate the expression Z/8, or z 8 for each of the following values for Z:
20) Z = 10.2
21) Z = 92
22) Z = 16.016
23) Z = 5 4/9
Evaluate each expression below if m = 32 and n = 150
24) m/16, or m by 16
25) 2N - 200
26) 3/4M -12
Answers
Answer:
1.275
11.5
2.002
0.68
2
0
12
Step-by-step explanation:
Evaluate Z/8 for each :
Z = 10.2 ; 10.2 / 8 = 1.275
Z = 92 ; 92/ 8 = 11.5
Z = 16.016 ; 16.016 / 8 = 2.002
Z = 5 4/9 ; (49 /9) ÷ 8 = 0.68
Evaluate each expression below if m = 32 and n = 150
m/16 ; 32 / 16 = 2
2N - 200 ; 2(150) - 300 = 300 - 300 = 0
3/4M -12 ; 3/4(32) - 12 = 24 - 12 = 12
Sahil is 3/4 foot taller than Charlie. Charlie is 5 1/8 feet tall. Which equation can be used to find Sahil’s height, h ?
A. 3/4 + h= 5 1/8
B. 3/4 - h= 5 1/8
C. 5 1/8 + 3/4= h
D. 5 1/8 - 3/4= h
Answers
Answer:
Step-by-step explanation:
C. 5 1/8 + 3/4 = h
Since Charlies heigh is 5 1/8 feet tall. It says Sahil is 3/4 foot taller then Charlie. So 5 1/8 + 3/4 = Sahil height
PLEASE HELP! ASAP!!!!!!!!!!!!!!!!
Answers
Answer:
Area = 24 in.²
Step-by-step explanation:
Area of the parallelogram = base × height
base = 6 in.
height = h = ?
Use pythagorean theorem to find h
Thus:
h² = 5² + 3²
h² = 25 - 9
h² = 16
h = √16
h = 4 in.
Plug the values into the formula for area of parallelogram
Area = 6 × 4
Area = 24 in.²
Consider all five-digit numbers that can be created from the digits 0-9 0 - 9 where the first and last digits must be odd and no digit can repeat. What is the probability of choosing a random number that starts with 7 7 from this group? Enter a fraction or round your answer to 4 4 decimal places, if necessary.
Answers
Of these numbers, there are 504 numbers that start with 7, because there are 504 choices for the middle 3 digits and 1 choice for the first digit. Therefore, the probability of choosing a random number that starts with 7 from this group is 504 / 10,080 = 0.05, or approximately 5%.
Abi is carrying 3 gallons of milk. Each gallon of milk weighs 8.6 pounds. Abi wants to know the total weight of milk he is carrying.
Abi draws the area model below to find the product of 3 and 8.6.
8
0.6
3
3 x 8 = ?
3 x 0.6 = ?
What is the total weight of the milk he is carrying?
Use the number pad to enter your answer in the box.
Answers
Answer:
25.8 pounds
Step-by-step explanation:
3 x 8.6 = 25.8
please help me someone
Answers
Answer: itz d plz trust me
cuál es el resultado de |-15| x (-5)
Answers
Answer:
[tex]\frac{15}{x^5}[/tex]
Step-by-step explanation:
[tex]\left|-15\right|x^{-5}[/tex]
Step 1: Apply exponent rule: [tex]\:a^{-b}=\frac{1}{a^b}[/tex]
[tex]=\left|-15\right|\frac{1}{x^5}[/tex]
Step 2: Multiply fractions: [tex]a\cdot \frac{b}{c}=\frac{a\:\cdot \:b}{c}[/tex]
[tex]=\frac{1\cdot \left|-15\right|}{x^5}[/tex]
Step 3: Simplify
[tex]=\frac{15}{x^5}[/tex]
The result is [tex]=\frac{15}{x^5}[/tex]
Spanish/Espanól
Respuesta:
[tex]\frac{15}{x^5}[/tex]
Explicación paso a paso:
[tex]\left|-15\right|x^{-5}[/tex]
Paso 1: aplique la regla del exponente: [tex]\:a^{-b}=\frac{1}{a^b}[/tex]
[tex]=\left|-15\right|\frac{1}{x^5}[/tex]
Paso 2: multiplica fracciones: [tex]a\cdot \frac{b}{c}=\frac{a\:\cdot \:b}{c}[/tex]
[tex]=\frac{1\cdot \left|-15\right|}{x^5}[/tex]
Paso 3: simplifica
[tex]=\frac{15}{x^5}[/tex]
El resultado es [tex]=\frac{15}{x^5}[/tex]
Kevin hopes to earn a college basketball scholarship. To improve his shooting skills, Kevin shoots 50 baskets / day. If Kevin shoots 50 baskets every day for 60 days, how many shots will Kevin take?