1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tom [10]
3 years ago
6

The sales tax in San Francisco in 2018 can be modeled by S=0.085p, where p is the price of an item. Based on this model, does Sa

n Francisco have a higher or lower sales tax rate than Oakland?

Mathematics
1 answer:
MakcuM [25]3 years ago
5 0
9.25 my food fifjfjfjfjfnfjfjfjfnfndn
You might be interested in
Which of the following series are convergent?
Westkost [7]

Answer:

All of them

Step-by-step explanation:

According to the ratio test, for a series ∑aₙ:

If lim(n→∞) |aₙ₊₁ / aₙ| < 1, then ∑aₙ converges.

If lim(n→∞) |aₙ₊₁ / aₙ| > 1, then ∑aₙ diverges.

(I) aₙ = 10 / n!

lim(n→∞) |(10 / (n+1)!) / (10 / n!)|

lim(n→∞) |(10 / (n+1)!) × (n! / 10)|

lim(n→∞) |n! / (n+1)!|

lim(n→∞) |1 / (n+1)|

0 < 1

This series converges.

(II) aₙ = n / 2ⁿ

lim(n→∞) |((n+1) / 2ⁿ⁺¹) / (n / 2ⁿ)|

lim(n→∞) |((n+1) / 2ⁿ⁺¹) × (2ⁿ / n)|

lim(n→∞) |(n+1) / (2n)|

1/2 < 1

This series converges.

(III) aₙ = 1 / (2n)!

lim(n→∞) |(1 / (2(n+1))!) / (1 / (2n)!)|

lim(n→∞) |(1 / (2n+2)!) × (2n)! / 1|

lim(n→∞) |(2n)! / (2n+2)!|

lim(n→∞) |1 / ((2n+2)(2n+1))|

0 < 1

This series converges.

3 0
3 years ago
Which equation is the inverse of y = 9x2 - 4?
m_a_m_a [10]

Answer:

The inverse will be:

y' = \frac{\sqrt{x+4}}{3}

Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

f(x)  = 9x^{2} - 4

y = 9x^{2} - 4

x = 9y' ^{2} - 4

Now solve for y'.

First add 4 in both sides of the equation and change to the left y'.

x + 4= 9y'^{2} - 4+4

9y'^{2} = x + 4

Second divide by 9

9y'^{2}/9 = (x + 4)/9

y'^{2} = (x + 4)/9

Now you will have to clear y, with the square root.

[tex]y'^{\frac{2}{2}} = \sqrt{x + 4}  / \sqrt{9}[/tex] =

Simplifying terms

y' = \frac{\sqrt{x+4}}{3}

f^{-1}(x)  = \frac{\sqrt{x+4}}{3}

You can check the answer by doing the evaluation of the following equation:

(f o f^{-1} ) (x)

substitute the equation for y' or inverse function f^{-1}

f(\frac{\sqrt{x+4} }{3})

Now substitue the value into f(x)

You will have

= 9(\frac{\sqrt{x+4} }{3}} )^{2}  - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} )  - 4

=x

5 0
3 years ago
I took a photo of the question.
7nadin3 [17]

Answer:

f(f(5)) = 11

Step-by-step explanation:

f(f(5)) \\ from \: the \: table \: f(5) = 9 \\ so \: f(f(5)) = f(9) \\ also \: from \: the \: table  f(9) = 11 \\ so \: f(f(5)) = 11

I hope that is useful for you

5 0
3 years ago
The table shows the amount of sugar needed to make lemonade. Are the quantities proportional? Explain which method you used and
Klio2033 [76]

Answer: Yes

Step-by-step explanation:

For the first sugar and servings part, 4 for sugar, 2 for servings.

The ratio for this example above it for sugars to servings it 2:1. So every 2 sugars is every 1 serving and this applies to every other of the sugars and servings in the table.

7 0
3 years ago
Read 2 more answers
What is the common ratio of these numbers written as a fraction <br> 768,480,300,187.5
kolbaska11 [484]

Answer:

Step-by-step explanation:

im pretty sure it is 768/187.5 = about 4

because you are taking the highest number and putting it over the lowest number

4 0
3 years ago
Other questions:
  • this set of related facts contains two numbers less then 10. one of these numbers is the product of 3 . when you multiply the tw
    6·1 answer
  • Does anyone know how to make these statements false with a counterexample? 1) The reciprocal of each natural number is a natural
    9·1 answer
  • What are two other forms of writing for 8.517?
    15·2 answers
  • Which line of best fit should not have been drawn. Give a reason for your answer
    5·1 answer
  • Given the point (-3, 6) and a line y=2x-8, write an equation of a line through the point and parallel to the line.
    11·1 answer
  • The density of an object is equal to the quotient of its mass, and volume. An object has a density of 10g per liter and a volume
    5·1 answer
  • 6x+y=15 -7x-2y=-10 using substitution
    15·1 answer
  • Help i don't know what to do please help
    12·1 answer
  • Find the mean absolute deviation of the setback of data. 9, 12, 3, 5, 8
    13·1 answer
  • The measure of the supplement of an angle exceeds three times the measure of the complement of the angle by 12. Find the measure
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!