I need help please, I'm so confused .
Answer:
0.1, -0.2, -0.5
Step-by-step explanation:
Hector drew a 120 angle. What fraction of a circle does hector's angle turn through. PLSSSS HELP
Answer:
please send a picture so I can see
3b+t=30
5b-t=42
its easy and im lazy please solve with full steps asap
Biologists notice an alarming trend in the walleye population in Lake Erie. Despite efforts, the population is decreasing by 15% each year. They estimate the walleye population was 26 million at the beginning of the current year. Write a sequence that lists the population for the first 4 years using 26 million as the first term.
Walleye populations are considered to be in a rehabilitation state when they are between 15 and 20 million. In what year will the population reach this level? In addition to a harvest restriction, what intervention could be used?
Using the formula [tex]s_n = \frac{a^1 - a^1 (1 + r)^n}{1-(1+r)}[/tex] the sum of the population for the first 10 years? Remember it is decreasing by 15% each year!!
Answer:
Part A
The population for the first four years are;
Year 1; 26,000,000,
Year 2; 22,100,000
Year 3; 18,785,000
Year 4; 15,967,250
Part B
i)The third year
ii) Provision of spawning environment and the reduction of predators
Part C
The population after 10 years is approximately 139,208,436
Step-by-step explanation:
Part A
The given parameters are;
The rate at which the population is decreasing = 15%
The population of the walleye at the beginning of the current year, P = 26 million
Therefore, we have;
The population of subsequent year = 0.85 × The population of the current year
Therefore, we have a geometric series, with a first term, a = 26 million, and a common ratio, r = 0.85, given as follows;
aₙ = a + ar + ar² + ...
Therefore the first 4 years using 26 million as the first term are;
a₁ = 26 × 10⁶
a₂ = 26 × 10⁶ × 0.85 = 22,100,000
a₃ = 26 × 10⁶ × 0.85² = 18,785,000
a₄ = 26 × 10⁶ × 0.85³ = 15,967,250
The population for the first four years are;
26,000,000, 22,100,000, 18,785,000, 15,967,250
Part B
i) Given that the walleye population are considered to be in rehabilitation state when they are between 15 and 20 million, we have;
The population in the third year = 18,750,000 < 20,000,000
Therefore, the population enters rehabilitation state in the 3rd year
ii) Other intervention method includes provision of a adequate environment for spawning and the removal of predators
Part C
The formula for the sum of the geometric progression is presented as follows;
[tex]S_n = \dfrac{a^1 - a^1 \cdot (1 + r)^n}{1 - (1 + r)}[/tex]
Therefore, we have;
[tex]S_n = \dfrac{26 - 26 \cdot (1 - 0.15)^{10}}{1 - (1 - 0.15)} = 139.208436581[/tex]
The population after 10 years, Sₙ = 139.208436581 × 10⁶ ≈ 139,208,436
You are building a door frame. Both sides are 80.5 inches long and the top and bottom are both 36.5 inches wide. Which additional
statement(s) give enough information to conclude that the door frame forms a rectangle?
Answer:
you'd have to know that the corners are at 90 degree angles. as is, it could be a parallelogram
Maya has a brown poster board to color. She colors part of it green and part of it orange.
Which fraction of the poster board does Maya color?
Answer:
d
Step-by-step explanation:
3/5
5 poster boards in total and 3 are colour so...
it is 3/5
Hope this helps!
What is the value of this expression? 6 (24+ 3) - 2
Answer:
160
Step-by-step explanation:
PEMDAS
parenthesis go first 24+3= 27
there are no exponents but their is multiplication 27 times 6 is 162 their is no (D)Division (A)Addition but their is (S) Subtraction 162 minus 2 is 160
The sum of two numbers is 17 and their difference is 5, what are the two numbers?
Answer:
11, 8
Step-by-step explanation:
x + y = 17
x - y = 5
The "y" cancels out when you add the two equations and you end up with:
2x = 22
x = 11
Then, plug the "x" back into one of the equations to find "y":
11 + y = 17
y = 6
Which expression is equivalent to -30 - (8)
Answer:
Any equation that has an answer of -38
Step-by-step explanation:
thank you for your help
Answer:
I'm not completely sure but if they want exponents for 6 * 6 * 6 then it should be [tex]6^{3}[/tex]
Step-by-step explanation:
solve the equation below
Answer:
[tex]\frac{n}{3}[/tex]
5a + 5b -5 + 11a - 11b + 11
Answer:
16a - 6b + 6
Step-by-step explanation:
5a + 5b - 5 + 11a - 11b + 11 = 5a + 11a + 5b - 11b - 5 + 11 = 16a - 6b + 6
I need help quickly
Write 4 x 5/8 as a mixed number
Answer:
2 1/2
Step-by-step explanation:
When multiplying fractions, you multiply the numerators together and the denominators together.
4 • 5/8
Multiply 4 and 5.
20/8
You can simplify this by dividing both parts by 4
5/2
5/2 is also 2.5
2.5 written as a mixed number is 2 1/2.
This is your answer.
Hope this helps!
can a triangle be a right triangle if there is no right angle
Answer:
The answer is No because you have to have 1 right angle/90 degree angle for it to be a right angle hints the name right angle
Step-by-step explanation:
Please have a great week and mark me as brainllest god bless you
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PLSSS ANSWER QUICK I NEED THE ANSWER RIGHT NOW!!
The math club is going to sell t-shirts as a fundraiser. They buy 100 t-shirts and pay a total of $600 for the t-shirts and printing costs.
If they sell each t-shirt for $12, how many t-shirts must they sell to make a profit of $300?
O A. 9
OB. 25
O C. 50
OD. 75
O E 100
They have to sell D. 75 shirts to make a profit of $300.
The total cost of buying and printing the shirts was $600.
In order to make a profit of $300, they would therefore have to raise:
= Cost + profit
= 600 + 300
= $900
As they are selling each shirt $12, the number of shirts they would have to sell to get to $900 is:
= 900 / 12
= 75 shirts
They would therefore have to sell 75 shirts in order to make a profit of $300.
Find out more at https://brainly.com/question/18477566.
Complete the square to transform the quadratic equation into the form
(x − p)2 = q.
x2 + 20x – 104 = -8
A) (x – 10)2 = 196
B) (x + 10)2 = 96
C) (x – 20)2 = 96
D) (x + 20)2 = 196
what is the slope for 15 and 15
Answer:
1
Step-by-step explanation:
15/15=1
Which choice is equivalent to the fraction below? Hint: Rationalize the
denominator and simplify.
6/√3
Step-by-step explanation:
6/√3×√3/√3=6√3\√3
because √3×√3=3 hope you are not confused pls follow
Answer:
2√3
Step-by-step explanation:
because yes
The radius of a circle is 17 inches . What is the circumference? Use 3.14 for pi!
Answer:
53.38
Step-by-step explanation:
Find the slopes of the following lines
Answer:
-3/1 and -2/1
Step-by-step explanation:
The senior classes at High School A and High School B planned separate trips to Yellowstone National Park. The senior class at High School A rented and filled 12 vans and 5 buses with 269 students. High School B rented and filled 4 vans and 1 bus with 73 students. Every van had the same number of students in it as did the buses. How many students can a van carry? How many students can a bus carry?
Answer:
Number of students in each van = 18
Number of students in each bus = 53
Step-by-step explanation:
Given: The senior class at High School A rented and filled 2 vans and 7 buses with 407 students.
High School B rented and filled 1 van and 7 buses with 389 students.
Also, every van and the van had the same number of students in it.
Solution:
Let x denotes number of students in each van and y denotes number of students in each bus.
According to the given information,
From (ii), put in (i)
Put in
Number of students in each van = 18
Number of students in each bus = 53
Please give brainliest.
Ian has a goal to save $2000. He already has 1/5 of his goal. How much more money must Ian save to achieve his goal?
Answer:
1,000
Step-by-step explanation:
If Ian has 1/5 of his goal which is $2,000 just divide $2,000 by 1/5 which is 1,000. hope this helped
Answer:
1/5 of 2000 is 400 (2000/5=400)
2000-400 is 1600.
he needs to save another $1600
Solve the equation 14y+82=6x-20 for x if y is 25
Answer:
x= 226/3 or 75.33333333333333333333333333333
Step-by-step explanation:
14y+82=6x-20
y=25
Sub y=25 into 14y+82=6x-20
14y+82=6x-20
14(25)+82=6x-20
Calculate as follows:
14(25)+82=6x-20
350+82=6x-20
432=6x-20
Add twenty to both sides:
432+20=6x-20+20
452=6x-0
452=6x
Divide both sides by 6
452=6x
452/6=6x/6
452/6=x
x= 226/3 or 75.33333333333333333333333333333
Please please help please please ASAP please I'm begging you please I have 10 minutes please y'all help please any ACE that can help please
Answer:
Angle R
Step-by-step explanation:
It stated that triangle LMN ≈ triangle QRS
angle L = angle Q
angle M = angle R
angle N = angle S
The reason is (corr. ∠s, similar triangles)
Hope this helps
11-2 (1+3x) < 39
Maths HW Please help
Answer:
x>-5
Step-by-step explanation:
7b^2 - 14b - 56 = 0
Solve by completing the square
Answer: 7(b-1)^2-63
Step-by-step explanation:
Factor out 7
7(b^2-2b-8)
Add and subtract (-1)^2:
7(b^2-2b-8+(-1)^2-(-1\)^2)
Complete the square:
7((b-1)^2-8-(-1)^2)
Simplify:
7(b-1)^2-63
A square garden has a side length of 5 ft. What is the area of the garden?
5ft
10ft
20ft
25ft
Remember the are of a square is the side of a square squared.
This meant that this square's area=5^2=25
Done!
A baseball diamond is shaped like a square with each side measuring 30
yards.
midpoint of (4,3) and (9,10)
Answer:
(13/2, 13/2)
Step-by-step explanation:
plz help me ...
please
Answer:
x = -1, and y = -2, giving you the answer (-1, -2)
Step-by-step explanation:
In the second equation, we're told that y is equal to 2x. With that, we can replace "y" in the first one with "2x", giving us:
-4x - 2x = 6
-6x = 6
x = -1
Now that we know the value of x, we can simply plug it into the first equation to find y:
-4x - y = 6
-4(-1) - y = 6
4 - y = 6
-4 + y = -6
y = -6 + 4
y = -2
So x = -1, and y = -2