Answer:
−7x2−5x−12
Step-by-step explanation:
and if you need the answer to that its 46
The fish population in a local stream is decreasing at a rate of 3% per year. The original population was 48,000. Write an exponential function to model this situation. Then find the population after 7 years.
Answer:
Results are below.
Step-by-step explanation:
Giving the following information:
Decrease rate (d)= 7%
Number of periods (n)= 7 years
Current population (PV)= 48,000
First, to calculate the future value, we need to use the following decrease exponential formula:
FV= PV*[(1+d)^-n]
After 7 years:
FV= 48,000*(1.07^-7)
FV= 29,892
The fish population after 7 years is 38783
An exponential decay is in the form:
y = abˣ;
where y, x are variables, a is the initial value of y and b is < 1
Let y represent the fish population after x years.
Since there is initially 48000 fish, hence a = 48000. Also it decrease at a rate of 3% per year. Hence b = 100% - 3% = 97% = 0.97
Therefore:
y = 48000(0.97)ˣ
After 7 years:
y = 48000(0.97)⁷ = 38783
Therefore the fish population after 7 years is 38783
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An iPhone 12 Pro phone case normally costs $21.00 but it is on sale for 25% off. What is the sale price of the iPhone case?
Answer:
$15.75
Step-by-step explanation:
can some please help me find the 4th term
Answer:
11
Step-by-step explanation:
C(4) = -7 + 6(4-1)
C(4) = -7 + 6 x 3 =
C(4) = -7 + 18
C(4) = 11
Hope that helps!
MATH GRB MP2 2020-21 7 7 of 12
Find the perimeter of the rectangle. Write your answer in the SIMPLEST FORM by combining like terms if you need to. Show your work
or explain how you found your answer.
x + 7
Answer:
21
Step-by-step explanation:
3x - 12 = 3x + 1
help please
Answer:
There's no solution to this equation, when 2 equations have the same slope but different y-intercepts, they're parallel. This means they never intercept and there is NO solution and we can't solve for x.
please help me its mad confusing
Answer:
x = -3
Step-by-step explanation:
Answer:
x= -3
Step-by-step explanation:
The first step is getting the denominators equal
We can do this by multiplying the left side by 2/2 and the right side by 3/3 to get
[tex]\frac{2(12+6x)}{6}=\frac{3(5-9)}{6}[/tex]
The fractions cancel out and we're left with
2(12+6x)=3(5-9)
from here you just need to simplify and solve for x
24+12x= -12
12x= -36
x= -3
es urgente necesito ayuda
Ten years ago, Victor's age was half of the age he will be in 10 years. How old is he
now?
Answer:
It's the same
Step-by-step explanation:
Cause im smart
Present age of the Victor as per given condition of the equation formed is equals to [tex]30[/tex] years.
What is equation?" Equation is defined as the relation between the variables and numbers using the sign of equality."
According to the question,
[tex]'x'[/tex] represents the present age of the Victor
[tex]'x+10'[/tex] represents the age of the Victor 10 years now
[tex]'x-10'[/tex] represents the age of the Victor 10 years ago
As per condition given equation we get,
[tex]x-10 = \frac{1}{2} (x+10)[/tex]
Simplify the equation to get the present age ,
[tex]2(x-10) = x+10\\ \\\implies 2x-20 = x+10\\\\\implies 2x-x = 20 +10\\\\\implies x =30[/tex]
Hence, present age of the Victor as per given condition of the equation formed is equals to [tex]30[/tex] years.
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They made $835 in ticket sales
145 people bought tickets
child tickets were $4
adult tickets were $7
how many of each type ticket was sold
5 movie tickets cost $55. At this rate, what is the cost per ticket?
Please help i really need it
Answer:
11
Step-by-step explanation:
55/5 equals 11
Answer:
11
Step-by-step explanation:
55 divided by 5 equals 11
PLEASEEE HELP ME AND CAN YOU PLEASE SHOW YOUR WORK :)
Answer:
Hey! so the answer is N=2
Step-by-step explanation:
Add 12 to both sides of the equation
Simplify
Add 3 to both sides of the equation
Simplify
Divide both sides of the equation by the same term
Simplify
Solution
=2
Hoped this helped Im Eve btw. Hope you have a great day and consider marking this brainliest Thank you so much if you do! ✨
Factor the expression. 63 + 81
wrong answers reported
Answer:
144
Step-by-step explanation:
63+81=9(7+9)=9(16)=144
3 divided by 8. What is the dividend?
Answer:0.375
Step-by-step explanation:
What is the dividend? the question
does anyone have a private server on royal high I need the new set pls
Answer:
Nope but I hope you find one soon. -Your friend, Bill Cipher
Step-by-step explanation:
Answer:
I do!! My user is; AngelCookiesSmiles. c:
Step-by-step explanation:
Lincoln middle school plans to collect more than 2,000 cans of food in a food drive. So far, 668 cans have been collected. Write and inequality to find numbers of cams the school can collect on each of the final 7 days of the drive to meet this goal
Answer:
The answer is "[tex]\bold{668 + 7x > 2,000}[/tex]"
Step-by-step explanation:
7x = x is the cans obtained within 7 days 668 is the number of cans that are already obtained. Its number for goal cans is 2000. So, the equation is:
[tex]\to 7 x + 668 < 2000[/tex]
subtract and add the value 668:
[tex]- 668 \ \ \ \ \ -668[/tex]
[tex]\to 7x +0 < 1332[/tex]
Divide the value 7:
[tex]7 \ \ \ \ \ \ 7[/tex]
[tex]\to x < 190.30 \\\\OR\\\\\to x < 190\\\\[/tex]
When using substitution to solve systems of equations that have no solution or indefinitely many solutions, the variable terms are the same on both sides. How is the solution determined by the constants in the equations?
Answer:
e
Step-by-step explanation:
When using substitution to solve systems of equations that have no solution or indefinitely many solutions, the variable terms are the same on both sides. How is the solution determined by the constants in the equations?
Hold on, our servers are swamped. Wait for your answer to fully load.
It rained 4/5 inches on Monday.
On Tuesday, it rained 7/10 inches less than it did on Monday.
How much did it rain on Tuesday?
Answer:
inches.
Write your answer as a decimal.
Mo spends £15 on ingredients to make 40 cookies.
He sells all 40 cookies for 50p each.
Work out Mo’s percentage profit.
Write an equation of the line with a slope of 23and y-intercept of −8.
y=
Answer:
y=23x-8
Step-by-step explanation:
Use the formula y=mx+b
y-intercept is b which is -8
the slope is m which is in this case 23
Easy peasy!
A.
18 cm
B.
40 cm
C.
20 cm
D.
36 cm
Answer:
C
Step-by-step explanation:
108/(108-72) = 108/36 = 3
60/3 = 20
Chris borrows £6000 at a simple interest rate of 10% per year.
He pays the money back after 4 years.
How much does he pay back in total?
9514 1404 393
Answer:
£8400
Step-by-step explanation:
The amount due after t years is ...
A = P(1 +rt)
A = £6000(1 + 0.10·4) = £6000·1.40
A = £8400
Chris pays back £8400 in total.
9. I NEED HELP ASAP!! PLEASE PUT AND ANSWER AND STEP BY STEP EQUATION!! IF YOU DON'T KNOW THE ANSWER DON'T PUT ANYTHING!!
Write a rule for the linear function in the table.
A. f(x) = 4x
B. f(x) = 4 – x
C. f(x) = x – 4
D. f(x) = x + 4
2a + 2b = y
Solve for the variable, a
Answer:
A= y−2B/2
Step-by-step explanation:
Its in a fraction form
HELPPPP DUE IN 15 MINS!!!!
Triangles ABC and DEF are similar. Find x.
Answer:
8.57
Step-by-step explanation:
We can calculate the value of x using similarity ratio
11/7 = (15 + x)/(15) cross multiply expressions
105 × 7x = 165 subtract 105 from both sides
7x = 60 divide both sides by 7
x = 8.57 approximately
Jacksons kitty weighed 2 pounds and 3 ounces a month later the kitty weighed 56 ounces how much weight did the kitty gain in that month
Answer:
21 ounces
Step-by-step explanation:
2 pounds→ convert to ounces= 32
32 ounces+ 3 ounces= 35
56 ounces-35 ounces= 21 ounces
Answer:
21 ounces
Step-by-step explanation:
1 pound=16 ounces
16 x 2=32
32+3=35
56-35=21
Identify the area of the polygon that has vertices T(−3,1), S(−5,−4), A(−8,1), and N(−4,5)
Answer:
22.5
Step-by-step explanation:
The area of the polygon ABCD is 3/2 square units.
What is polygon?"It is two dimensional geometric figure having finite sides and vertices." A polygon is a two-dimensional geometric figure that has a finite number of sides. The sides of a polygon are made of straight line segments connected to each other end to end. Thus, the line segments of a polygon are called sides or edges.
here, we have,
we know that,
formula to find the area of the polygon:
"If polygon having vertices (x1, y1), ....(xn,yn) then the area of the polygon is,
A = 1/2 * | (x1y2 - x2y1) + ( x2y3 - x3y2) + .....+ (xny1 - ynx1)
This formula is also known as shoelace formula."
For given example,
the polygon has vertices T(−3,1), S(−5,−4), A(−8,1), and N(−4,5)
Consider given vertices of polygon as,
(x1, y1) = (−3,1)
(x2, y2)=(−5,−4)
(x3, y3)=(−8,1)
(x4, y4)=(−4,5)
Using the formula of area of the polygon the area of the polygon ABCD would be,
A = 1/2 * | (x1y2 - x2y1) + ( x2y3 - x3y2) + .....+ (x4y1 - y4x1)
so, solving we get,
A = 1/2 | 17 + 27 - 36 -11|
A = 3/2
Therefore, the area of the polygon ABCD is 3/2 square units.
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What is the total cost of an item that cost $43 when you add the sales tax (.0825)?
Answer:
43.0825
Step-by-step explanation:
I don't know if the tax is percentage or just adding
54,675+33,548,000x^1+a^2=?
Answer:
?
Step-by-step explanation:
54,675+33,548,000x^1+a^2=
get rid of ^1 cuz that doesn't change the value
a^2 can be written as 2a because a^2= a*a and 2a= a*a
54,675+33,548,000x+2a
54,675+33,548,000x= -2a-54675
33,548,000x=-2a-54675
16774000x=-a-27337.5
x=-a - 27337.5
x=-a-27337.5/ 16774000
I obviously know this isn't a real question but here
Answer:
Step-by-step explanation:hey Karlie
Please help! I will give Brainly (don’t know how to spell the word)
20% of Ms. Royal's students came to class late. If 3 students came late to
class, how many students does Ms. Royal have in her class?
Answer:
15 students
Step-by-step explanation:
i just used multiplication
Answer:
15 students
Step-by-step explanation:
20% is 1/5
So is 3 is 1/5 you multiply 3 by 5 (since 1/5 is 3 and to find 5/5 its you need a full 5/5)
3*5 = 15
Another house is sold for £283,392
This is 1.6% less than the price paid for the house. What was the price paid?
Answer:
the price paid is £288,000
Step-by-step explanation:
The computation of the price paid is shown below:
Sale of the another house is £283,392
Since the another house would be 1.6% less than the price paid
So, the price paid would be
= £283,392 × 100 ÷ (100 - 1.6%)
= £283,392 × 100 ÷ 98.4
= £288,000
Hence, the price paid is £288,000