Answer:
f'(x) = (x + 1)/15
Step-by-step explanation:
f(x) = 15x -1,
Think of the term "f(x)" as a single variable, then solve for the term "x", manipulate the equation like how one would manipulate a literal equation, by inverse operations.
f(x) = 15x - 1
+1 +1
f(x) + 1 = 15x
/15 /15
(f(x) + 1)/15 = x
This means that (denote in the way one would denote an inverse of a function);
f'(x) = (x + 1)/15
Music company A charges a $15 membership fee and $0.75 each to download a song. Music company B charges $0.90 each to download a song with no membership fee.
A. For what number of songs will both companies charge the same amount? Justify your answer using mathematics.
B. your anticipate that you will download 150 songs. Which company should you choose if you want to spend the least amount of money? Justify your answer using mathematics.
Answer:
a) 165
Step-by-step explanation:
solve for X . Please help !! :)
Answer:
10
Step-by-step explanation:
thats the answer
x=5
2x=10
x√3=√170
Andrews math teacher entered the seventh- grade students in a math competition. There was an enrollment fee of $30 and also an $11 charge each packet of 10 test. The total cost was $151. How many test were purchased?
Answer:
11
Step-by-step explanation:
You would start by subtracting $30 from $151 which is $121.
Then you would divide this by 11 which 121÷11=11
So 11 test were bought.
Can you help me with this question please
Runners who achieved a time between 37 and 48 minutes to complete the race were each awarded a silver medal. (c) Calculate an estimate of the number or runners awarded silver medals
Answer:
The data is missing, However the answer is given below
Step-by-step explanation:
The data is missing about the runners and the duration minutes taken to complete the race, However the answer is given below
(3 * 4) + (8 * 3)
12 + 24
36 silver medals would have been awarded to runners.
The data is missing for the runners of the race and the time they took to complete the race, silver medal is awarded for runners who completed race in 37 to 38 minutes.
Find the angle measure D FIRST ANSWER GETS BRAINIEST
Answer:
its 44
Step-by-step explanation:
180=46+90+x
180=136+x
44=x
What is the cube root of 864
Answer:
Cube root of 864 can be represented as 3√864.
Answer:
9.52441
Step-by-step explanation:
[tex] \sqrt[3]{864} [/tex]
[tex] = \sqrt[3]{(9.524 \times 9.524 \times 9.524)} [/tex]
[tex] = 9.52441[/tex]
a rectangular prism is 5 in Long 8 inch wide and 10 inches tall what is the length of its longest diagonal
A piece of paper has a rectangle ABCD in which AB= 10 cm and BC = 22 cm , it was folded to form a right circular cylinder such that AB is cincident to DC . Find the volume of the resulted cylinder
Answer: [tex]385cm^{2}[/tex]
Step-by-step explanation:
given data:
AB= 10 cm.
BC = 22 cm.
volume of a cylinder V = [tex]\pi r^{2} h[/tex]
h = 10.
solution
base of the circumference = 22cm
circumference of a circle = [tex]2\pi r[/tex]
r = radius is unknown.
[tex]2\pi r = 22[/tex] .........................eq1
where [tex]\pi = \frac{22}{7}[/tex] insert this into eq1.
[tex]2* \frac{22}{7}* r = 22[/tex]
[tex]\frac{44}{7} r = 22[/tex]
[tex]r = \frac{22}{\frac{44}{7} }[/tex]
[tex]r= 3.5cm[/tex]
next we solve for the volume of the cylinder.
recall [tex]V = \pi r^{2} h[/tex]
h = 10cm
r = 3.5cm
[tex]V = \frac{22}{7} * (3.5)^{2} *10[/tex]
[tex]V = 385cm^{2}[/tex]
도와주세요
Please Help!!!!
Answer:
(c) is the right answer
go for it
hope it helps you
Step-by-step explanation:
please mark me as brainliest please
In a city the population is increasing exponentially at a rate of 1.6% per year.
Find the overall percentage increase at the end of 20 years.
Answer:
32% increase at the end of 20 years
Step-by-step explanation:
If the population increases at a rate of 1.6% per year, we should multiply it by the number of years that passed, which in this case, is 20. When we multiply those, we get 32%.
(hope this helped)
plzzzzzzzzzzzzzzzzzzzzzzzzzzzz helppppppppppppppppppppppppppp
Solve the solution to the inequality below.
-6x-10>26
Answer:
X equals -6
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.Inequality Form
Given the vectors a and b, with lengths 21 and 44 respectively, and cosine of the angle between them equal to StartFraction 7 Over 12 EndFraction, find the scalar projection of a onto b and a · b.
ab =
a · b =
Answer:
First = 49/4
Second = 539
Step-by-step explanation:
The dot product is 539, and the scalar projection of a onto b is 49/4
What is a Vector?Vector is a quantity that has both magnitude and direction.
The scalar projection of a onto b is given by
[tex]\dfrac {a.b}{|b|}[/tex]
a.b = |a| |b| cos[tex]\rm \theta[/tex]
a.b = 21 *44 *(7/12)
a.b = 539
The dot product of a and b is 539.
The scalar projection is
= 539 / 44
= 49/4
Therefore, the dot product is 539, and the scalar projection of a onto b is 49/4.
To know more about Vector
https://brainly.com/question/24256726
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Need help please thanks
Answer:
Use an app called Cymath it tells you the answer and it shows you step by step on how to work it out. I used the app multiple times and it helps me a lot!
Step-by-step explanation:
Hope I helped! :)
Hurry hurry help!! I will make u a brainlist
Answer:
The answer is no
Step-by-step explanation:
A singer and a producer each wrote songs for an upcoming album. The singer wrote 6 fewer than twice the number of songs that the producer wrote. They wrote a total of 54 songs. How many songs did the singer and producer wrote?
Answer:
The producer wrote 20 songs
The Singer wrote 34 songs
Step-by-step explanation:
Let
Number of songs the producer wrote = x
Number of songs the singer wrote = 2x - 6
Total songs written by singer and the producer = 54
54 = x + (2x - 6)
54 = x + 2x - 6
54 + 6 = 3x
60 = 3x
Divide both sides by 3
x = 60/3
= 20
x = 20 songs
Number of songs the producer wrote = x = 20 songs
Number of songs the singer wrote = 2x - 6
= 2(20) - 6
= 40 - 6
= 34 songs
The producer wrote 20 songs
The Singer wrote 34 songs
Help pls
Jay thinks of a prime number. The sum of its digits is one more than a square number. Write down one number jay could be thinking of.
Answer:
Jay could be thinking of 11
Step-by-step explanation:
Prime numbers are the numbers that have two factors only, 1 and itself as
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, .................
All prime numbers can divide by 1 and itself only
∵ A number is a prime number
∵ The sum of its digits is 1 more a square number
∴ The sum of its digits = 1 + x, where x is a square number
→ We will start with the first prime number of 2-digits
∵ 11 is a prime number
∵ The sum of its digits = 1 + 1 = 2
→ Substitute it in the equation above to find x
∴ 2 = 1 + x
→ Subtract 1 from both sides
∵ 2 - 1 = 1 - 1 + x
∴ 1 = x
∵ 1 is the square of 1
∴ Jay could be thinking of 11
You can check some of the other prime numbers to find another number
You had $50. You spent 10% of the money on clothes, 20% on games, and the rest on books. How much money was spent on books?
Answer:
35 dollars
Step-by-step explanation:
10% is 5 dollars so 30% is 15. 50 - 15 = 35
Answer: thirty five dollars
Step-by-step explanation: if you spent 30% on other things you have 70% on books and that is 35 dollars
(y – 5) = 2/3 (x + 2)
Answer:
Use the slope-intercept form
m=[tex]\frac{2}{3\\}[/tex]
Step-by-step explanation:
PLEASE HELP DUE SOON!! #2 and #4
Answer:
2. We can't see the figure so we can't answer this
4. they are both the symmetrical, so we can safely assume that they are both equal.
Last month, Claire's bank statement said that she overdrew her account. Her bank balance was -45.32−45.32minus, 45, point, 32 euros. This month, Claire's bank balance is 17.9217.9217, point, 92 euros. What does this mean?
Answer:
63.24 euros were deposited in the bank.
Step-by-step explanation:
Claire's bank account was overdrawn.
Last month, Initial balance in the bank account = -45.32 euros
After a month, the balance became positive i.e. 17.92 euros.
To find:
What changes were made in the account?
Solution:
The balance came to a positive value from the negative value, it means that some money was deposited in the bank account.
Let the money deposited in the bank account = [tex]x[/tex] euros
As per question statement:
[tex]-45.32 + x = 17.92\\\Rightarrow x = 63.24\ euros[/tex]
Answer:
Claire has 17.92 euros in her account.
Step-by-step explanation:
khan said so
Dion ordered a pizza from Domino’s. Domino’s charges 50 cents per topping.
What’s is the rate of change?
What’s the equation of the line?
Answer:
the answer is 50
Step-by-step explanation:
the answer is 50 because lets say the the amount for a plain pizza is $12 that will be your inital value. 50 is your rate of change cause they price is add onto by 50 cents per topping.
Define volume of a cuboid.
Answer:
Here
Step-by-step explanation:
The volume of cuboid = (Length x Breadth x Height) cubic units = ( l x b x h) cubic units.
D.
$3.75
Two families went bowling. Each hour of bowling costs b dollars per person, plus a flat foo
of 52 per person for shoe rental. The expression 3 (6 + 2) + 4(6+2) represents the total
cost of both familes to bowl for one hour Choose the equivalent expression below
A.
7(6+2)
B
7(20+4)
с
36 +2+4+2
D
37 +6++2
4
plese someone answer me b asap
Answer:
[tex]\huge\boxed{\sf 9y^2 -22y-24}[/tex]
Step-by-step explanation:
[tex]\sf (3y-1)^2 -(2y+4)^2+(2y-3)(2y+3)\\\\Using \ formula:\\\\1) (a-b)^2 = a^2-2ab+b^2\\\\2) (a+b)^2= a^2+2ab+b^2\\\\3) (a+b)(a-b) = a^2-b^2\\\\Applying \ Formulas\\\\(3y)^2-2(3y)(1)+(1)^2-[(2y)^2+2(2y)(4)+(4)^2]+(2y)^2-(3)^2\\\\9y^2-6y+1-[4y^2+16y+16]+4y^2-9\\\\9y^2-6y+1 -4y^2-16y-16+4y^2-9\\\\Combining \ like \ terms\\\\9y^2-4y^2+4y^2-6y-16y+1-16-9\\\\9y^2 -22y-24\\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Answer:
a) [tex]\frac{1}{3}[/tex] k² - 9
b) -7y² - 3
Step-by-step explanation:
a) ([tex]\frac{2}{3}[/tex] k - 6)² - ([tex]\frac{1}{3}[/tex] k + 3)²
= [tex]\frac{4}{9}[/tex] k² - 36 - [tex]\frac{1}{9}[/tex] k² + 9
= [tex]\frac{4}{9}[/tex] k² - [tex]\frac{1}{9}[/tex] k² + 9 -36
= [tex]\frac{3}{9}[/tex] k² - 27
= [tex]\frac{1}{3}[/tex] k² - 9
____________________________________
b) (3y - 1)² - (2y + 4)² + (2y - 3) (2y + 3)
= 9y² - 1 - 4y² + 16 + (2y - 3) (2y + 3)
= 9y² - 4y² - 1 + 16 + (- 3) (4y² + 6y)
= 5y² + 15 - 12y² - 18
= 5y² - 12y² + 15 - 18
= -7y² - 3
Hope this helps!
(NOTE: Do you mind marking me as Brainliest?)
5x-8y=9 how do you solve this? Or at least an answer?
True or false: If two triangles have two pairs of corresponding angles congruent, along with a pair of non-included sides congruent, then the triangles are always congruent
If two angles and the included side of one triangle are congruent to the corresponding parts of another triangle, the triangles are congruent. If two angles and the non-included side of one triangle are congruent to the corresponding parts of another triangle, the triangles are congruent.
Therefore, it is true.
Paul's English class is located in the same quadrant as the library. Which of the following could be the coordinates of the English classroom?
(4, 5)
(−4, 5)
(−4, −5)
(4, −5)
What is the sum of the interior angles of a 14 sided polygon?
Answer:
2160 degrees
Step-by-step explanation:
The general equation to find the sum of interior angles in a polygon is;
[tex](n - 2) * 180[/tex]
Where "n" is the sides of the polygon.
Substitute in 14 for "n"
( 14 - 2 ) * 180
Solve;
( 14 - 2 ) * 180
12 * 180
2160
What does 5000 x 5000?
Answer:
25,000,000
Step-by-step explanation:
5*5=25 and add the 6 zeros
please give thanks :)
Answer:
well for me
Step-by-step explanation:
I think
=25000000
