Answer:
C
Step-by-step explanation:
Is to the left of 1/3 on a horizontal number line.
find the standard deviation of 3, 21, 21.4, 17.4, 12.6, 2.6, 11.2, 16.9
Answer:
Standard Deviation: 6.8932825090809
Step-by-step explanation:
Sum: 106.1
Standard Deviation: 6.8932825090809
Mean: 13.2625
Count: 8
Range: 18.8
Median: 14.75
(Hope this helps can I pls have brainlist (crown)☺️)
Data were recorded for a car’s fuel efficiency, in miles per gallon (mpg), and corresponding speed, in miles per hour (mph). Given the least-squares regression line, , what is the fuel efficiency for a speed of 60 mph?
3.65 mpg
33.90 mpg
36.52 mpg
38.55 mpg
The least-squares regression line equation gives the line that approximate the relationship between the variables in the fuel efficiency data
The fuel efficiency when the speed is 60 mph is approximately 38.55 mpg.
Reason:
The given least-squares regression line equation is presented as follows;
ln(Fuel Efficiency) = 1.437 + 0.541 × ln(speed)
Required:
The value of the fuel efficiency for a speed of 60 mph.
Solution:
The general form of the least-squares regression line equation is [tex]\hat y[/tex] = a + b·x
Where, in the current question, we have;
[tex]\hat y[/tex] = The predicted value = ln(Fuel Efficiency)
a = The y-intercept = 1.437
b = The slope = 0.541
x = The input value = ln(speed)
When the speed = 60 mph, we have;
ln(Fuel Efficiency) = 1.437 + 0.541 × ln(60) = 3.65204040816
Therefore;
[tex]Fuel \ Efficiency = e^{(1.437 + 0.541 \times ln(60))} \approx 38.55[/tex]
The fuel efficiency when the speed is 60 mph ≈ 38.55 miles per gallon
Learn more here:
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Answer:
the person above me is correct.
Step-by-step explanation:
A down payment of $195 is made on a television that costs $1300. What percent of the
cost is the down payment?
Answer:
15%
Step-by-step explanation:
Add 195 to 1300, which gives you, 1495.
Use the formula for percent change: Difference = % * original price.
So what is the difference between 1495 and 1300? It’s 195.
Now we have 195 as the difference.
Do we know the original price of the TV? Yes we do. What is it? Its 1300 because the question states the TV costs $1300.
Now we have the equation 195 = % * 1300
We don’t know the percentage, right? So now we have to solve for %. To do that, you have to do 195 divided by 1300, which gives you 0.15. Lastly, you have to turn 0.15 into a percentage, to do that, multiply 0.15 by 100, and it should give you 15%.
Therefore, 15% is the down payment. Hope this helps!
Find m angleA
A. 10
B. 20
C. 16
D. 14
ALGEBRA Ishiro Murakami has $15.60 deducted weekly for
family medical insurance. His employer pays 85% of the cost.
What is the annual premium?
Murakami's Annual premium which is the total value of medical insurance in a year is $5408
Percentage paid by employer = 85%Percentage paid by worker = 15%Number of weeks in a year = 52Annual deduction from worker's salary = 52 × 15.60 = $811.2
15% of annual premium = 811.2
Let annual premium = p
Therefore,
15% × p = 811.2
0.15p = 811.2
Divide both sides by p
p = 811.20 / 0.15
p = $5408
Therefore, his annual premium is $5408
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If you can clean 1/6 of your bedroom in 15 minutes, what is your rate per hour?
Which of these fractions equals 40%
Answer:
40/100
Step-by-step explanation:
Help please………………………
Answer: See below
Step-by-step explanation:
1. Yes
2. No
3.No
4. Yes
5. No
6. Yes
7. No
8. No
9. Yes
help me please with the question I will mark BRAINLIEST
Answer:
4^126^78^57^3Step-by-step explanation:
apply the indices law
multiple means additiondivision means subtraction you are suppose to add the powers or subtract where necessary4^9x 4^3= 4^56^5x6^2=6^78^6÷8=8^57^8÷7^6=7^2The output of a function is 5 more than -2 times the input. Write and solve an equation to find the input when the output is 11
Answer:
17 is x=6.
Step-by-step explanation:k
5(t-9) +12t=20
3(6m-17),m=5
find the 21st term of the AP 1,3,5,7,
Answer:
are you Philippines ty points
Answer:
a₂₁ = 41
Step-by-step explanation:
The nth term of an AP is
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 1 and d = a₂ - a₁ = 3 - 1 = 2 , then
a₂₁ = 1 + (20 × 2) = 1 + 40 = 41
como se saca la raíz cuadrada?
Answer:
La raíz cuadrada de cualquier número se puede expresar usando la fórmula: √y = y½.
X= - 3/4Y -5. Please put this in slope intercept.
y = - 4/3 x - 20/3
Step-by-step explanation:
x = - 3/4 y - 5 Move Terms
3/4 y = - 5 - x Divide both sides
y = - 20/3 - 4/3 x Reorder the terms
y = - 4/3 x - 20/3
Hint :- The slope intercept form of the line is [tex] y = mx + c [/tex] , where m is the slope of the line and c is y intercept .
Solution:-
Given equation to us ,
[tex]\implies x = \dfrac{-3}{4}y -5 [/tex]
Multiply both sides by 4 ,
[tex]\implies 4x = -3y -20 [/tex]
Add 20 to both sides ,
[tex]\implies 4x +20 = -3y [/tex]
Divide both the sides by -3 ,
[tex]\implies \dfrac{-4}{3}x-\dfrac{20}{3}= y [/tex]
Flip the equation ,
[tex]\implies y = \dfrac{-4}{3}x-\dfrac{20}{3} [/tex]
If you earn 12000 per month and you except your earnings to increase by 10% per year,how much do you think you will be making per year in 5 years?(round hundredths place)
Step-by-step explanation:
1 month=12000/=
12months=144000000/=
1 year=144000000
5years=720000000/=
7200000.000/=
Change 1/5 to a fraction
Answer:
.2
Step-by-step explanation:
Use the cards below to create a list of steps, in order, that will solve the following equation.
3(x+6)2 = 75
Solution steps:
Add 6 to both sides
Divide both sides by 3
1
Divide both sides by
3
Subtract 6 from both sides
ay
23
Square both sides
Take the square root of both sides
A coat usually sells for $62.95. It is on sale for 10% off.
What is the sale price?
bc if b = -3 1/8 and c = -4/5
Answer:
-3 37/40
Step-by-step explanation:
Kaitlin drove 325 miles in 5 hours. At the same rate, how long would it take her to drive 455 miles?
Answer:
7 hours
Step-by-step explanation:
take the original distance traveled to find the speed traveled and take the new distance to travel devided by the speed 325÷5=65 455÷65=7
what value of a makes the following equation true
Answer:
It's -30
Step-by-step explanation:
Combine like terms
− 8 = 2 1 0
−7 = 2 1 0
Divide both sides of the equation by the same term
− 7 = 2 1 0
-7a/-7 = 210/-7
You cancel the -7 on the left side and divide 210 by -7
and then 210/-7 is -30
Hope this helps mark me brainliest!
Given the function y = (x - 2)2 graphed below, which restriction of the domain will result in
the inverse being a function?
VIEW IMAGE FOR GRAPH!
A: y = (x - 2)^2 , x ≥ 1
B: y = (x - 2)^2 , x ≥ 2
C: y = (x - 2)^2 , x ≥ 0
D: y = (x - 2)^2 , x ≥ -2
The restriction of the domain of the function will be y = (x - 2)², x ≥ 2. Then the correct option is B.
What is a function?A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.
Let the point (h, k) be the vertex of the parabola and a be the leading coefficient.
Then the equation of the parabola will be given as,
y = a(x - h)² + k
Then the parabolic function is given below.
y = (x - 2)²
The restriction of the domain will result in the inverse being a function given as,
x - 2 ≥ 0
x ≥ 2
The restriction of the domain of the function will be y = (x - 2)², x ≥ 2. Then the correct option is B.
More about the function link is given below.
https://brainly.com/question/5245372
#SPJ5
Which is the graph of the following equation?
x2 = 25
Can someone please help me ASAP!
Answer:
D
Step-by-step explanation:
x^2=25
[tex]\sqrt{x^{2}[/tex] = [tex]\sqrt{25}[/tex]
x= 5
What is the correct number form for “seven and eighty-three thousandths?”
7.083
7.83
7.803
7.830
Answer:
7.083
Step-by-step explanation:
well there's the ones place, tenths, hundredths, and thousandths. easy math, unless i'm stoopid and this is wrong :D
You want to buy a new app for your iPhone that costs $2.50. The tax rate is 4%. How much total do you pay for the app?
9514 1404 393
Answer:
$2.60
Step-by-step explanation:
You pay ...
app cost + tax
$2.50 + 4% × $2.50 = $2.50×(1 + 4%) = 1.04×$2.50 = $2.60
You pay $2.60 for the app.
If 8 pizzas cost $72,how much will 15 pizzas cost
Answer: $135
Explanation: To find how much 15 pizzas will cost, first we have to find out how much just one pizza will cost. To do this, you have to divide both the number of pizzas (8) and also the price for those 8 pizzas ($72) by the number of pizzas (8 again). When you do this you get the price of one pizza. Then you multiply the price of one pizza by the amount of pizzas you actually need to find the value for (15). This is a lot to explain but don't lose hope! Let me show you step by step and it'll make more sense.
Step 1) Divide both the amount of pizzas and the cost of that many pizzas
8 ÷ 8 = 1
72 ÷ 8 = 9
This means that one pizza costs 9 dollars.
Step 2) Multiply the cost of one pizza by 15 (the amt of pizzas you need to find the cost for)
15 × 9 = 135
135 is the cost for 15 pizzas. I hope this helps you!
I NEED HELP WITH THIS MATH PROBLEM!!!!
Which expression is equivalent to 6f-1+7f-8?
13f+7 5f-1
-f+7 or -9+13f
Answer:
Step-by-step explanation:
6f - 1 + 7f - 8 = 6f + 7f - 1 - 8
= 13f - 9
Combine like terms. Like terms have same variable with same power.
Answer:
-9+13f
Step-by-step explanation:
6f+7f = 13f
-1 + -8= -9
So the sum of them is -9+13f
Determine the intercepts of the line.
Do not round your answers.
y=-2x-21y=−2x−21
Answer:
• For y-intercept [ x = 0 ]
[tex]{ \rm{y = - 2x - 21}} \\ \\ { \rm{y = ( - 2 \times 0) - 21}} \\ \\ { \rm{y = - 21}} \\ \\ { \boxed{ \rm{ \: y - intercept : \: (0, \: - 21) \: }}}[/tex]
• For x-intercept [ y = 0 ]
[tex]{ \rm{y = - 2x - 21}} \\ \\ { \rm{0 = - 2x - 21}} \\ \\ { \rm{2x = - 21}} \\ \\ { \rm{x = - 10.5}} \\ \\ { \boxed{ \rm{x -intercept : \: ( - 10.5, \: 0) \: }}}[/tex]
Answer:
I hope you got it right!! :)
Step-by-step explanation:
Subtract 8 1/5 - 4 2/5
. Simplify the answer and write as a mixed number.
Answer:
3 4/5
Step-by-step explanation:
divide the following mixed fraction
2 7/10 ÷ 3 1/4
Answer:
54/155
Step-by-step explanation:
do the reciprocal of 31/4then multiply it with27/10
Answer:
54/155
Step-by-step explanation:
hope it works out for you
