Step-by-step explanation:
it is true though because
4 x -3 = -12
and
-12 - 2 = -14
The function P(x) = –0.015x
2 + 1.2x – 11.5 gives the profit, in thousands of dollars, when
a company sells a new product at x dollars per unit. Which of the following statements best
interprets the average rate of change of this function from x = 50 to x = 55?
A. The profit increases by $375 for every $1 increase in the selling price.
B. The profit decreases by $375 for every $1 increase in the selling price.
C. The profit increases by $1875 for every $1 increase in the selling price.
D. The profit decreases by $1875 for every $1 increase in the selling price.
Answer:b
Step-by-step explanation:
A= Round your answer to the nearest hundredth. 5 B 7 ? A
Answer:
35.54Step-by-step explanation:
Use tan-1 (5÷7)
Louisa used Downtown Taxi, which charges $2 for the first mile and $1.10 for each additional mile. Pietro used Uptown Cab, which charges $5 for the first mile and $0.95 for each additional mile. They paid the same amount and traveled the same distance. How far did they travel?
Answer: 21 miles
Step-by-step explanation:
Jay and Kevin are shoveling the snow off a driveway. Working together, they can clear the driveway of snow in 14 minutes. Working alone, it
would take Kevin 21 minutes longer to clear the driveway of snow than it would take Jay working alone. When is the number of minutes it
would take Jay to clear the driveway of snow when working alone, the situation is modeled by this rational equation:
1/j + 1/j +21 = 1/14
How long would it take Jay to clear the driveway of snow working alone?
А.
7 minutes
В.
21 minutes
C.
35 minutes
D
42 minutes
Answer:
21
Step-by-step explanation:
my teacher said so
It would take Jay 21 minutes to clear the driveway of the snow working alone
The equation is given as:
[tex]\frac 1j + \frac{1}{j + 21} = \frac{1}{14}[/tex]
Take the LCM
[tex]\frac{j + 21 + j}{j(j + 21)} = \frac{1}{14}[/tex]
This gives
[tex]\frac{2j + 21}{j(j + 21)} = \frac{1}{14}[/tex]
Cross multiply
[tex]14(2j + 21) =j(j + 21)[/tex]
Expand
[tex]28j + 294 =j^2 + 21j[/tex]
Collect like terms
[tex]j^2 +21j - 28j - 294 =0[/tex]
[tex]j^2 - 7j - 294 =0[/tex]
Using a graphing calculator, we have:
[tex]j = 21\ or\ x =-14[/tex]
The value of j cannot be negative, because of the context.
So, it would take Jay 21 minutes to clear the driveway of the snow working alone
Read more about rational equations at:
https://brainly.com/question/18446103
What is the slope of the line that passes through the points E(5, 1) and F(2, 7)?
A) 8/3
B) 3/8
C) -3/8
D) -8/3
Answer:
I would say it's B(3/8)
Answer:
7 - 1/2 - 5 = 6/-3 = -2
Step-by-step explanation:
None of those answers are correct the answer is -2
What is the length of the unknown side of the right triangle?
Answer:
Hypotenuse
Step-by-step explanation:
Answer:
L= the sum of the square root of the square of the opposite side and the square of the base the triangle.
Step-by-step explanation:
Using Pythagorean Theorem :
the square of the hypotenuse= the square of the opposite side + the square of the base.
please help ;-; what is the constant of proportionality
Answer:
.6
Step-by-step explanation:
3/5=.6
Out of 85 adults selected randomly from one town, 63 have health insurance. Find a 90% confidence interval for the true proportion of all adults in the town who have health insurance.
a) find sample proportion P with hat on top.
b) use z subscript alpha divided by 2 end subscript equals 1.645 space spaceto find margin of Error for 90% confidence interval.
c) Find the confidence interval.
d) Interpret your interval
show work. round all numbers to at least 3 decimal places. you don't need to explain in words where you get the numbers(unless it is easier for you than writing in math notations). you can only write in math notations.it should be clear which function you are using.(normalcdf, invnorm. invt,..)
Answer:
oh shi sorry I wish I could help but I'm stupid
In general, how tall are giraffes? stat or not stat
Answer:
18 feet tall
Giraffes are the tallest land animals. Female giraffes are up to 14 feet tall and weigh up to 1,500 pounds. Meanwhile, males are up to 18 feet tall and can weigh 3,000 pounds.
Meet Forest, the tallest giraffe in the world
(CNN) A male giraffe living in a zoo in Australia has been crowned the tallest of them all, hitting a giddy 5.7 meters (18 feet, 8 inches). Isn't that cool?!
( just so you know some of this information was with the help of google)
Brainliest?
Solve for s.
8 - 4s = s + 13
Answer:
s= -1
Step-by-step explanation:
Choose the ratio that is equivalent to 4:6.
Group of answer choices
4:9
12:15
6:9
10:16
A car has 15 gallons of gas in its tank. The car travels 35 miles per gallon of gas. It uses 1/35 of gas to go 1 mile. How much gas dose the car use to 100 miles? Show your reasoning.
Answer:
um......I think 2 figure it out....
Step-by-step explanation:
A car has 15 gallons of gas in its tank. The car travels 35 miles per gallon of gas. It uses 1/35 of gas to go 1 mile.
Who voted on red 。 • ﾟ 。 .
. . 。 。 .
. 。 ඞ 。 . • •
ﾟ Red was not An Impostor. 。 .
' 1 Impostor remains 。
ﾟ . . , . .
Answer:
i used to play that
Step-by-step explanation:
1
Find the missing side
in the similar figures below:
30
15
24
25
.X
Ms. Price
Mr. Clark
Mr. Smith
A) 30
B) 34
C) 36
D) 38
E) 10
Mrs. Wilson
Mrs. White
im not sure ask a professional
Consider W=4(cos(pi/2)+ isin(pi/2)) and Z=3(cos(3 pi/2) + isin(3 pi/2)). What is W + Z expressed in polar form?
Answer: The answer is b!!
Step-by-step explanation: I just took the test!
Answer:
B
Step-by-step explanation:
Ed2021
What is the equation of a line that is parallel to the line 4x-2y=10 and goes through the point (3,12)
Answer:
4x - 2y = -12
Step-by-step explanation:
4(3) - 2(12) = b
12 - 24 = b
-12 = b
4x-2y = -12
find the original price of a pair of shoes if the sale price is $40 after a 60% discount
Answer:
Thus, the original price of the pair of shoes was $100.
Step-by-step explanation:
Percentages
After a 60% discount, the sale price is now valued at 100-60=40% of its original price.
If the sale price is $40, then the original price is calculated as
$40 / 40 * 100 = $100
Thus, the original price of the pair of shoes was $100.
Verify applying 60% discount:
$100 - 60*$100/100 = $40
2/5 divided by 2 1/10
Answer:
4/21
Step-by-step explanation:
first you need to make them both fractions, not mixed numbers. so it would be 2/5 divided by 21/10. then you flip the second number so you can multiply it : 2/5 * 10/21. 5 and 10 are divisible by 5 so you can cross 5 out and make a 1 and cross 10 out and make a 2: 2/1 * 2/21. then multiply and you get 4/21!
hope this helps!
What is bigger or are they the same?
1/4 or 0.4
Answer:
0.4 is bigger
Step-by-step explanation:
Think of 1.4 as splitting 100 into 4 equal pieces. 25, 25, 25 and 25. Then think of sliplliting 1 into 4 equal pieces. .25, .25, .25, and .25. 1/4 is equal to 0.25 which makes 0.4 larger then 0.25
Hope this helps!
2x29(4x3)= what is the answer to this problem
Answer:
10,092
Step-by-step explanation:
841×12
Each line represents a proportional relationship.Write an equation for each line. Show your work.
Answer:
do u think u can zoom in more on the graph
Step-by-step explanation:
Answer:
can you zoom more in the graph?
Step-by-step explanation:
N+ 5/16=-1
:)))) ASAP
Answer:
Step-by-step explanation:
16N+5=-16 (multiply by 16)
16N=-21 (subtract 5)
N=-21/16 (divide by 16)
Please mark brainliest Hope this helps :D
Translate this algebraic phrase into an algebraic expression. "4 less than the height"
Answer:
h - 4
Step-by-step explanation:
Let "h" represent the height. You would subtract the height by 4.
h - 4
FIrst to answer gets brainliest no trolls
Answer:
Step-by-step explanation:
Division of liked variables
Answer:
B
Step-by-step explanation:
fractions = division
Sorry if I am wrong!!!!!!!!!!!!!!!!! Can I be brainliest?
Gavin needs $80 to buy a fish tank. He has saved $8 and plans to work as a babysitter to earn $9 per hour. Which inequality shows the minimum number of hours, n, that Gavin should work as a babysitter to earn enough to buy the fish tank? 8 + 9n ≥ 80, so n ≥ 8
Answer:
He needs to work 8 hours minimum.
Step-by-step explanation:
9*8 = 72 and he already has 8 dollars saved making it 80. Just enough to get him what he wants. Hope this helped! :)
Answer:
thats the rigth choice
Step-by-step explanation:
I NEED HELP ASAP!!! PLEASE REPLY!!
Answer:
Both are correct
Step-by-step explanation:
Answer: both are correct
Step-by-step explanation:
Both are correct
you can use either way to solve it.
Last year, a 1.6-gallon container of ice cream sold for $5.99. This year, the same ice cream, now in a 1.2-gallon container, sells for the same price of $5.99. By what percentage was the weight of a container of the ice cream reduced? A. 75% B. 25% C. 60% D. 40%
Answer:
25% is the answer
Step-by-step explanation:
From last year to this year, the weight of the container is reduced by
B. 25%
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
Given, Last year, a 1.6-gallon container of ice cream sold for $5.99. This year, the same ice cream is now in a 1.2-gallon container.
So, The amount of icecream increased this year is,
= (1.6 - 1.2) gallons.
= 0.4 gallons.
Now to obtain percentage change we'll divide the net amount change by the original amount and multiply it by 100% which is,
= (0.4/1.6)×100%.
= 0.25×100%.
= 25%.
learn more about percentages here :
https://brainly.com/question/24159063
#SPJ5
answer all questions!!!!!!!!
Answer:3 6 7 9 9
Step-by-step explanation:
Adam, Barry, and Charles visited a small farmers market last Saturday. Adam purchased 3 dozen eggs, 1 wheel of cheese, and 5 pounds of potatoes. Barry bought 1 dozen eggs and 10 pounds of potatoes, while Charles purchased 2 dozen eggs and 2 pounds of potatoes. If Adam’s bill was $38.25, Barry’s $36.50 and Charles’ $17.20, how much did a dozen eggs, a wheel of cheese and a pound of potatoes cost?
Answer:
Dozen eggs = $5.5
Wheel of cheese = $6.25
Pound of potatoes = $3.1
Step-by-step explanation:
Let the cost
Dozen of egg = x
Wheel of cheese = y
Pound of potato = z
We will form linear equations using the information given in the question
Adam purchased 3 dozen eggs, 1 wheel of cheese, and 5 pounds of potatoes
3x + y + 5z = 38.25 ................(1)
Barry bought 1 dozen eggs and 10 pounds of potatoes
x + 10z = 36.50 ............(2)
Charles purchased 2 dozen eggs and 2 pounds of potatoes
2x + 2z = 17.20 .................(3)
solving 2 and 3
x = $5.5 and z = $3.1
substitute these values in equation 1
we get
y = $6.25
The cost
Dozen eggs = $5.5
Wheel of cheese = $6.25
Pound of potatoes = $3.1
How did they figure out the answer was 4 for the fraction problem solving. There are 36 people in the Newtown Hiking Club. 2/3 of the club must vote yes if the club is to hike the Northern Trail. 20 people have voted yes. How many more yes votes are needed?
Answer:
Step-by-step explanation: