Answers
Answer:
C
Step-by-step explanation:
You want to know what f(a) is when a = 3That means that wherever you see an a on the right, you put in a 3.To put the question in a bit clearer language, what is the y value (f(a)) is the y value), when a = 3f(a) = a^3 - 4a^2 + 2a - 6f(3) = 3^3 - 4(3)^2 + 2(3) - 6f(3) = 27 - 36 + 6 - 6f(3) = - 9Related Questions
5a + 5b -5 + 11a - 11b + 11
Answers
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
Answers
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 SOMEONE PLZ HELPPPP
Answers
Answer:
option D would be your answer
Step-by-step explanation:
[tex]y=\frac{-1}{2}[/tex]
Answer:
its -1/2 the last option
Step-by-step explanation:
can a triangle be a right triangle if there is no right angle
Answers
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
[o]-[o]
\___/
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
Answers
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.
I need to find the Surface Area must show all work: I need help!!
Answers
rectangles - 24*17=408*2= 816
base - 24*10= 240
ADD 240+816+180= 1,236cm
A small bottle contains 120 mL of juice. A large bottle contains 160 mL of juice. What is the ratio of the volume of juice in the small bottle to the volume of juice in the large bottle? A. 4 : 3 B. 3:5 C.3 : 4 D. 5:3
Answers
Answer:
3:4
Step-by-step explanation:
Given:
Small bottle volume = 120 mL
Big bottle volume = 160 mL
Find:
Ratio of small bottle to big bottles volume
Computation:
Ratio of small bottle to big bottles volume = 120 / 160
Ratio of small bottle to big bottles volume = 3/4
Ratio of small bottle to big bottles volume = 3:4
Option "C" is correct.
In the volume formula, V=Bh, what does the capital B stand for?
Answers
Answer:
B stands for base
Step-by-step explanation:
The B stands for the base of the shape.
Find the slopes of the following lines
Answers
Answer:
-3/1 and -2/1
Step-by-step explanation:
PLZ HELP ASAP
The circle is centered at the point (4,5), and the length of its radius is 3. what is teh equation of the circle?
a) (x-4)^2 + (y-5)^2 = 9
b) (x+4)^2 + (y+5)^2 = 3
c) (x-5)^2 + (y-4)^2 = 9
d) (x^2-4) + (y^2-5) = 3^2
Answers
Answer:
The answer is C.
Step-by-step explanation:
plz help,i'll give brainlliest
Answers
11-2 (1+3x) < 39
Maths HW Please help
Answers
Answer:
x>-5
Step-by-step explanation:
3b+t=30
5b-t=42
its easy and im lazy please solve with full steps asap
Answers
2) Jacob is 3 years older than Sarah, and Caroline is twice as old as Sarah
If Caroline is 28 years old, how old is Jacob? *
Answers
Half of 28 is 14
Sarah is 14 and Jacob is 3 years older than her
Jacob is 17!
What is the value of this expression? 6 (24+ 3) - 2
Answers
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
I need help please, I'm so confused .
Answers
Answer:
0.1, -0.2, -0.5
Step-by-step explanation:
At a baseball game, 3 drinks and 4 hotdogs cost $15.00. At the same game, 3 drinks and 1 hotdog cost $10.50. Find the cost for a drink.
Answers
Answer:
$3
Step-by-step explanation:
Given data
Let the cost of drinks be x
and the cost of hotdogs be y
so
3x+4y=15-------1
also
3x+y= 10.5------2
solve 1 and 2
3x+4y=15
-3x+y= 10.5
3y= 4.5
divide both sides by 3
y= 4.5/3
y= $1.5
Put y= 1.5 in 1
3x+4(1.5)=15
3x+6= 15
3x=15-6
3x= 9
x= 9/3
x= $3
Hence the cost of a drink is $3
Identify all the expressions that are equivalent to 43.
A
12
B.
64
C
4x4x4
D
34
E
82
F
26
Answers
Answer:
4*4*4, 64, 8^2, 2^6
Step-by-step explanation:
4^3=4*4*4
=64
4^3=2^(2*3)=2^6
=8^2
If f(x) = - 3x3 -- x2 +8
what is f(-2)?
Answers
Answer:
f(-2) = 28
Step-by-step explanation:
Given that,
[tex]f(x) = - 3x^3 -x^2 +8[/tex]
We need to find the value of f(-2). Put x = -2 in the given function. SO,
[tex]f(-2) = - 3(-2)^3 -(-2)^2 +8\\\\=24-4+8\\\\=28[/tex]
So, the value of f(-2) is equal to 28.
2. Find the volume of the
cylinder
Answers
Answer:
V≈43.98
Step-by-step explanation:
V=πr2h=π·22·3.5≈43.9823
12ax^{2} -15ab-16a+20b[/tex]
Answers
Answer:
12 a x^ 2 -15 a b-16 a
Hector drew a 120 angle. What fraction of a circle does hector's angle turn through. PLSSSS HELP
Answers
Answer:
please send a picture so I can see
Base ten numeral
What is Two and four hundred fifty eight thousandths?
Answers
Answer:
2.458
Step-by-step explanation:
Answer:
2.458
Step-by-step explanation:
It’s basically Place Values, 2 is in the ones, 4 is in the tenths, 5 is in the hundredths and 8 is in the thousandths.
Solve the equation 14y+82=6x-20 for x if y is 25
Answers
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
7b^2 - 14b - 56 = 0
Solve by completing the square
Answers
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
midpoint of (4,3) and (9,10)
Answers
Answer:
(13/2, 13/2)
Step-by-step explanation:
plz help me ...
please
Answers
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
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?
Answers
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.
solve the equation -8(4k-5)=200
Answers
Answer:
k = -5
Step-by-step explanation:
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!!
Answers
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