The number of fish in the lake is an illustration of arithmetic sequence
The value of f(2) is 7800, and it represents the number of fish in the lake, the second year
The model is given as:
[tex]\mathbf{f(n+1) = f(n) - 400}[/tex]
Where [tex]\mathbf{f(1) = 8200}[/tex]
To calculate f(2), we simply take n as 1.
i.e. n = 1
Substitute 1 for n in [tex]\mathbf{f(n+1) = f(n) - 400}[/tex]
So, we have:
[tex]\mathbf{f(1+1) = f(1) - 400}[/tex]
Add 1 and 1
[tex]\mathbf{f(2) = f(1) - 400}[/tex]
Substitute 8200 for f(1)
[tex]\mathbf{f(2) = 8200 - 400}[/tex]
Subtract
[tex]\mathbf{f(2) = 7800}[/tex]
Hence, the value of f(2) is 7800
Read more about sequence at:
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How to improve your class multiplication skills.
Answer:
PRACTICE.....ONCE THERE WAS A TIME WHEN I'D USED TO FAIL IN MATHS.....BUT NOW I ALWAYS GET 90+ IN MATHS!!!!!
How many times in a 24-hour day will the hour and minute hands of a 12-hour analog clock form a 90-degree angle
Answer:
44
Step-by-step explanation:
In other words, the minute hand "overtakes" the hour hand on 44 occasions in 24 hours in order to give a 90 degree angle. Therefore the answer to your question is 44.
Answer:
the answer would be eight
Step-by-step explanation: it would hit the first 90 degree angle when the hour is at twelve and the minutes at 15 then 12 and 45 then 3 and 30 and three and 12 then 6 and 15 and six and 30 then 9 and 30 then 9 and 12 .
CAN SOMEONE HELP ME PLEASE ASAP!
Step-by-step explanation:
the scaling factor from 15 to 45 is 3.
we need to shoot the same to the width :
14.5 × 3 = 43.5 cm
Lucy has ridden 45 miles of a bike course. The course is 60 miles long. What percentage of the course has Lucy ridden so far?
Answer:
a
Step-by-step explanation:
what is the answer??????
Answer:
C. 6.66Solution:
20/3 can be expressed as 20 ÷ 3
20 ÷ 3 = 6.66...
we would have a result of an endless quotient.
Please help, thanks. I don't understand how to do this.
Answer:
3m(a-2b)+(a-2b)^2
= 3m(a-2b)+(a-2b)(a-2b)
= (a-2b)(3m+a-2b)
3. If 480 movie tickets were sold on Saturday,
how many were child tickets?
Child= 15%
Adult= 75%
Senior=10%
Answer:
72 child
369 adult
48 senior
Reduce the fraction to lowest terms 16/24
Answer:
2/3 is the anwer.
Step-by-step explanation:
there are red and white roses in a vase 30% are red .there are 21 white roses.how many are there in total
Answer:
Step-by-step explanation:
21 roses are white so that is 70%
so that would be 70/100 and can reduce to 7/10
and the percent of red would be 3/10
so we can do 21 divided by 7 which equals 3
then we can do 3 x 3 because 3/10 which equals 9
then you do 21 + 9= 30
so the answer is 30.
Please help. I'm not really good at these kind of problems. Working alone, Dan can do a certain job in three hours and Stan can do the same job in two hours. At these rates, how long would it take Dan and Stan to do this job working together?
Answer: The answer is it would take Dan and Stan 1 hour if they work together, because 3-2=1, so make those hours and you have 1 hour.
Hope I helped:)
6(x + 1) = -2(3x + 9)
Answer:
x=-2
Step-by-step explanation:
6(x + 1) = -2(3x + 9)
Distribute 6 and -2.
6x+6=-6x-18
Move the variable to the left-hand side and move the constant to the right and change their signs.
6x+6x=-18-6
Collect like terms.
12x=-24
Divide both sides of the equation by 12.
x=-2
Hope this helps :)
Help me on this please
Solve the quadratic equation 2x + x-7 = 0
Give your answers to 2 decimal places.
[tex]\text{Its not a quadratic equation but the answer is 2.33}[/tex]
HURRY for Brainlist
The drama club is printing t-shirts for its 21 members. The printing company charges a certain amount for each shirt plus a setup fee of $40.
Write an equation to represent the total cost for printing the shirts.
Question 1 options:
C = 21 + 40t
C = 21t - 40
C = 21t + 40
C = 21t
Someone help me please :(
Answer:
ok, but i can't even see nothing, though ;-;
can anyone help me solve this?
Step-by-step explanation:
a triangle,=180
so 68+35-180=77
then 77+68=145
6. Three bunches of flowers can be bought for $9.48. Four bunches can be bought for $10.64. Which is the better buy?
y varies jointly as x and z. If y = 12 when x = 4 and z = 3, find y when x = 9 and z = 8.
Answer:
y = 72
Step-by-step explanation:
Given y varies jointly as x and z then the equation relating them is
y = kxz ← k is the constant of variation
To find k use the condition y = 12 when x = 4 and z = 3
12 = k × 4 × 3 = 12k ( divide both sides by 12 )
1 = k
y = xz ← equation of variation
When x = 9 and z = 8 , then
y = 9 × 8 = 72
find the sum of the first 10 terms of the geometric series 1+10+100+1000+...
(with solution)
PA HELP PO THANKSSS
Answer:
1111102111
Step-by-step explanation:
a = 1
r = 10
∑1x10^n = 1111102111
where n starts from 1 to 10
Find x, the answer is 5 but how do I get it?
Answer:
x = 5
Observe the parallelograms inside the shape. Their sides correspond to half the big triangle.
Step-by-step explanation:
2x + (3x + 2) + (4x + 1) = 48
9x + 3 = 48
x = 5
HELP?!?!!! pleaseeee
Answer:
option 1. 3 juniors and 5 seniors
option 2. 4 juniors and 2 seniors
Step-by-step explanation:
3 + 5 = 8
8 is less than 9 and more than 4
4 + 2 = 6
6 is less than 9 and more than 4
the angle bisectors of a triangle intersect at the
Answer:
The incenter
Step-by-step explanation:
The three angle bisectors of the angles of a triangle meet in a single point, called the incenter
Write a function that represents the relationship between X and y shown in the graph below
==============================================================
Explanation:
Select any two points from the diagonal line. I'll pick (0,-10) and (2,-4).
Use these points in the slope formula
m = (y2 - y1)/(x2 - x1)
m = (-4 - (-10))/(2 - 0)
m = (-4 + 10)/(2 - 0)
m = 6/2
m = 3
The slope is 3.
The y intercept is b = -10 since this is the location where the diagonal line crosses the vertical y axis.
The values m = 3 and b = -10 have us go from y = mx+b to y = 3x-10
What is s - -32 = 383 what does s =
Step-by-step explanation:
i dont know
35is what percent of 25
Answer: 140
Explanation: 35/25 = 1.4 = 140%
Would appreciate brainly <3
Answer:
Percentage Calculator: 35 is what percent of 25? = 140.
Step-by-step explanation:
hehe :)
6. (4. 1) and (1, 4) are on the line
Answer: This is used by
Step-by-step explanation:
Evaluate the equation. d - 4.12 = 12.8
A) d = 8.58
B) d = 8.68
C) d = 16.92
D) d = 17.02
Answer: i think its D
Step-by-step explanation:
someone please help me with this question
Answer:
your answer would be 9
Step-by-step explanation:
please mark this as brainlists
Answer:
9
Step-by-step explanation:
Because you do subtract 3 on both sides then divide 5x by 5 and 45 by 5
A 3-pack of light bulbs costs $3.27. What is the unit price
Answer:
0.91$
Step-by-step explanation:
The graph of the line y= 3 is a line that has which of the following characteristics?
O parallel to the y -axis
O passing through the point (5,0)
O parallel to the x-axis
O passing through the origin
The characteristics of the horizontal line graph, y = 3 is that it is:
c. parallel to the x-axis
Recall:
The equation of a horizontal line graph is represented as y = k; where k is the point on the y-axis intercepted by the line.Horizontal line graph is always parallel to the x-axis.The graph of the line, y = 3 is shown in the diagram attached below. From the graph, k is 3 (on the y-axis) and it is parallel to the x-axis.
Therefore, the characteristics of the horizontal line graph, y = 3 is that it is:
c. parallel to the x-axis
Learn more about horizontal line graph on:
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