is there any tutor available like a techer
State the domain and range and determine if its a function?
Crude oil imports to one country from another for 2009–2013 could be approximated by the following model where t is time in years since the start of 2000. I(t) = −33t2 + 800t − 3,000 thousand barrels per day (9 ≤ t ≤ 13) According to the model, approximately when were oil imports to the country greatest?
Answer:
Import in 2012 was the greatest
Step-by-step explanation:
Given
l(t) = -33t² + 800t - 3000
9 ≤ t ≤ 13
Required
Determine the year with highest import.
To do this we simply substitute the values of t from 9 to 13 in the given function.
When t = 9
l(t) = -33t² + 800t - 3000
l(9) = -33 * 9² + 800 * 9 - 3000
l(9) = -33 * 81 + 800 * 9 - 3000
l(9) = -2673 + 7200 -3000
l(9) = 1527
When t = 10
l(10) = -33 * 10² + 800 * 10 - 3000
l(10) = -33 * 100 + 800 * 10 - 3000
l(10) = -3300 + 8000 - 3000
l(10) = 1700
When t = 11
l(11) = -33 * 11² + 800 * 11 - 3000
l(11) = -33 * 121 + 800 * 11 - 3000
l(11) = -3993 + 8800 - 3000
l(11) = 1807
When t = 12
l(12) = -33 * 12² + 800 * 12 - 3000
l(12) = -33 * 144 + 800 * 12 - 3000
l(12) = -4752 + 9600 - 3000
l(12) = 1848
When t = 13
l(13) = -33 * 13² + 800 * 13 - 3000
l(13) = -33 * 169 + 800 * 13 - 3000
l(13) = -5577 + 10400 - 3000
l(13) = 1823
Comparing the values of l(t) for the range of t = 9 to 13,
The highest value of l(t) is:
l(12) = 1848
Hence, the year with the highest import is 2012
The oil imports to the country are greatest during the year 2012
Given the model where t is time in years since the start of 2000 expressed as I(t) = −33t² + 800t − 3,000
The oil imports more oil during the year 2012, is t = 12
I(12) = −33(12)² + 800(12) − 3,000
I(12) = -33(144) + 9600 - 3000
I(12) = -4752 + 6600
I(12) = 1848
Hence the oil imports to the country are greatest during the year 2012
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10 blue marbles, 3 white marbles, 15 violet marbles, and 5 green marbles, ratio of white marbles to green marbles?
Answer:
3:5
Step-by-step explanation:
10 Blue Marbles
3 white marbles
15 violet marbles
5 green marbles
Ratio: white to green marbles
ratio symbol ":"
3 White & 5 Green
Answer: 3:5
Hope this helps :) !!!
Find the indicated side of the
right triangle.
X=
Answer:
tan 30 = p/b
1/√3= 3/x
x= 3√3
please give brainliest as i am 3 short to expert
Step-by-step explanation:
Solve: 2x + 27 = 3x - 9
x = 36
Step-by-step explanation:2x + 27 = 3x - 9
27 + 9 = 3x - 2x
x = 36
Answer:
ok
Step-by-step explanation:
What is the solution?
Answer:
1)x=13-15 => x=-2
2)-6x=-30 => x=5
3)x/4=18 => x=72
4)x-2=-11 => x=9
Step-by-step explanation:
Factor mn+7n−m−7 by grouping.
Answer:
[tex]\left(m+7\right)\left(n-1\right)[/tex]
Step-by-step explanation:
[tex]mn+7n-m-7[/tex]
[tex]\left(mn+7n\right)+\left(-m-7\right)[/tex]
[tex]n\left(m+7\right)-1\left(m+7\right)[/tex]
[tex]\left(m+7\right)\left(n-1\right)[/tex]
The factors of given polynomial is (m+7)(n-1).
What is factorization?The factorization method uses basic factorization formula to reduce any algebraic or quadratic equation into its simpler form, where the equations are represented as the product of factors instead of expanding the brackets. The factors of any equation can be an integer, a variable, or an algebraic expression itself.
The given polynomial is mn+7n-m-7.
By grouping method we can factorize the given polynomial
Here, (mn+7n)-m-7
= n(m+7)-1(m+7)
= (m+7)(n-1)
Therefore, the factors of given polynomial is (m+7)(n-1).
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if jessie had 3 feet of string and maxine had 34 inches of string, who had more string
Answer:
Jessie
Step-by-step explanation:
12 inches = 1 foot
Jessie has 3 feet of string. So, multiply 12 by 3.
12 × 3 = 36 inches
36 inches is greater than 34 inches. So, Jessie has more string.
Hope that helps.
SOMEONE HELP WHAT IS THE ANSWER TO THESE QUESTIONS PLEASE HELP
The length of a rectangle is 4 yd longer than its width. If the perimeter of the rectangle is 40 yd, find its area.
Answer:
96
Step-by-step explanation:
2. Mr. Kim's rectangular garden is four times as long as it is wide. He is going to enlarge it
by extending cach side 7 feet.
a. Represent the length and width of the original garden using an appropriate variable.
Width:
W.4
w
Length:
b. Using the same variable, represent the perimeter of Mr. Kim's garden after it is
enlarged
Perimeter:
Answer:
P = 10W + 28
Step-by-step explanation:
Let L be the original length of the garden
W be the original width of the garden
If Mr. Kim's rectangular garden is four times as long as it is wide, then L = 4W
If he is going to enlarge it by extending each side 7 feet, then;
The new length l = (4W + 7) feet
The new width will be w =(W+7) feet
Perimeter of the rectangular gerden P = 2(l+w)
l and w are the new length and width
Substituting l = 4W+7 and w = W+7 into the formula;
P = 2(4W+7+W+7)
P = 2(5W+14)
open the parenthesis
P = 10W + 28
Hence the perimeter of Mr. Kim's garden after it is enlarged is given by the expression P = 10W + 28
What is the value of x?
Answer/Step-by-step explanation:
well, first figure out how many units/times prism A was enlarged to become prism B...
16 ÷ 2 = 8
Now if we apply that info to the length of the prism, then...
80 ÷ 8 = 10
Therefore x = 10
And the Prisms remain congruent and proportional!
Hope this helps!Please mark Brainliest!!! =DWhat is (-7) x (-3) in multiplying integers
Answer:
21
Step-by-step explanation:
negative x negative = positive the negatives cancel out each other
PLZZZ HELP WILL GIVE BRAINLIST PLZZZ I REALLY NEED HELP At a store, customers are randomly selected to participate in a survey. On Friday, there were 500 customers at the store. Of those, 90 were selected to participate in the survey. On Saturday, the store manager expects 700 customers in the store. If the probability of being selected to participate in the survey on Saturday is the same as it was on Friday, how many customers will be selected to participate in the survey on Saturday? Show all of your work
Answer:
126
Step-by-step explanation:
90 / 500 = 0.18 = 18% probability.
So now what is 18% of 700?
0.18 * 700 = 126
Alg 2 Honors questions giving brainliest
Answer:
2h/ t^2 - 2v/t =g
Step-by-step explanation:
h = vt+1/2 gt^2
Subtract vt from each side
h - vt = vt+1/2 gt^2 -vt
h - vt = 1/2 gt^2
Multiply each side by 2
2( h-vt) = 2 * 1/2 g t^2
2 ( h-vt) = gt^2
Divide each side by t^2
2 ( h-vt) / t^2= gt^2/t^2
2/t^2 (h -vt) = g
Distribute
2h/ t^2 - 2v/t =g
make 2 2/5% a fraction in simplest form
Answer: 3/125
Step-by-step explanation:
Answer:
24/1000
Step-by-step explanation:
Step 1:
2 2/5% = 2.4%
Step 2:
2.4% = 0.024
Step 3:
0.024 = 24/1000
Answer:
24/1000
Hope This Helps :)
What is 456,345,698,746 ft in cm?
Answer:
13909416897778.08 cm
Step-by-step explanation:
Answer:
13909416897778.08 cm
Step-by-step explanation:
I really need help with this question
Answer:
The answer is 235.6
Step-by-step explanation:
You plug in the numbers to the equation.
Three friends went to the movies. They shared a popcorn and a pack of
candy which cost $9, and altogether they spent $45. a) Write an
expression to represent the situation. b) How much was the price of each
movie ticket?
Answer:
Step-by-step explanation:
A) x+9 =45
x=45 - 9
x=36 cost the tickets
B) 36 :3=12 $cost a ticket
bob removed 24 fish for his pond over a period of 8 days. He removed the same number of fish each day what was the change in the pond each day
Answer:3
Step-by-step explanation:
24 fish divided by 8 days = 3 fish per day.
what is f(0) ?
12 only
2 and 3 only
-2 , -1, 1 and 2 only
-2,-1, 1, 2 and 12
plzzzz help
Answer: it's 12 only
Step-by-step explanation:
4. A dolphin decsends toward the bottom of
the ocean at a rate of 12 feet per second
for 20 seconds. How much did the
dolphin's position change in all? (5 points
for work, 5 points for answer) (TEK 7.3B)
The retail inventory value of an item is the item's retail price times the quantity in stock. If a pack of cookies' retail price is $2.98 and there are 9 items in inventory, what is the total retail value?
Answer:
$26.82
Step-by-step explanation:
9 * 2.98 = 26.82
pls mark brainliest, thanks :)
4. Kamau wants to get change for a sh 1000 note. The change
is to consist of sh 500, sh 200, sh 100 and sh 50 notes
What is the smallest number of notes he can get?
[2003 No.
A. 4
B.
c.6
D.2
Answer:
2 notes
Step-by-step explanation:
500+500=1000/=
Kamau needs 2 notes
1. Joanne's waitressing job gave her a raise of $2 per hour. The first day on her new
wage, she worked half of a full a workday and made $36 (not including tips).
Answer:
What exactly is the question?
On the first day on Joanne's new wage, she worked for 18 hours.
Given that, Joanne's waitressing job gave her a raise of $2 per hour.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
The first day on her new wage, she worked half of a full a workday and made $36.
Number of hours she worked = Total money she made/Money paid per hour
= 36/2
= 18 hours
Therefore, on the first day on Joanne's new wage, she worked for 18 hours.
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Donovan wants to earn a 70% in Mr. Mottola's class. He knows he currently has an 68% in the class after 5 grades. What is the minimum grade Donovan would need to earn in order to have a 70%.
Answer:
If donovan wants to get dem grades up he has to stop talking out of turn, stop passing notes to his friends, stop fighting, stop trying to kiss the girls, stop cussing, mind his own bussiness, and do his work
Step-by-step explanation:
Name 4 noncoplanar points.
Answer:
RPVN
Step-by-step explanation:BRBR
Define alternate interior angles
(01.06)
i’m please help
Answer:
the answer is -6
Step-by-step explanation:
x^2+36=0
x^2= -36
√x^2 = √-36
x= -6
I want to know-24 divided by -4
Answer: 6
Step-by-step explanation: -24/-4 = 6.
the answer is: 6
explanation: ...