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
nevsk [136]
2 years ago
5

If y varies inversely as x and y = –9 when x = –11, find y when x = 66.

Mathematics
2 answers:
Ann [662]2 years ago
8 0

Answer:

y=3 divided by 2

Step-by-step explanation:

zlopas [31]2 years ago
6 0

Answer:

y=\frac{3}{2}

Step-by-step explanation:

y=\frac{k}{x}

-9=\frac{k}{-11}

k=99

y=\frac{99}{66}

y=\frac{3}{2}

You might be interested in
Which term is any number that can be shown as the quotient of two integers?
inysia [295]
Rational. Example 5/10
8 0
3 years ago
-6/7 graph on the number line
avanturin [10]
That would be in the II quadrant
So across to negative 6 and up to 7 is your coordinate
5 0
3 years ago
Help me on this math question thank you
Vitek1552 [10]

Answer:

  • C for question 1
  • A for question 2

Step-by-step explanation:

First Question

What you need to do here is pick an answer that will result in a decrease. If you have something like 1.3 * e ^ (0.038 * t), what will happen when t = 20

P = 1.3 * e^(0.038*20) = 1.3*e^0.76 = 2.77 which is getting bigger not smaller.

So what you want is something like 1.3 * e^-0.76 = 0.67

So which question is configured that way?

It's either C or D. but which one? It cannot be D. 0.38 is far too big: it does not represent 3.8%

C does represent 3.8% as a decimal. It is the correct answer.

Answer: C

Second Question

Every time she sells a ticket, the total that she gets is 4 more than what she had before.

The variation is a direct one. It is y = k*x. But what is k? Is it 4 or is it 1/4?

Read the first sentence above. She gets 4 dollars more, not 1/4 of a dollar.

C and D are both wrong because those equations think she is getting 1/4 more.

B is wrong because it says that the relationship is inverse. It is not. It is direct.

The answer is A


4 0
3 years ago
Tom rolls 2 fair dice and adds the results from each. Work out the probability of getting a total that is a factor of 21.
nika2105 [10]

Answer:

3 plus 4. and 2 plus 1. or 4 plus 3 or 1 plus 2

Step-by-step explanation:

5 0
3 years ago
Write the composite function in the form f(g(x)). [Identify the inner function u = g(x) and the outer function y = f(u).] y = ta
Irina-Kira [14]

Answer:

The inner function is u = \pi x.

The outer function is f(u) = \tan{u}.

\frac{dy}{dx} = y^{\prime} = \sec^{2}(u)*\pi = \pi\sec^{2}{\pi x}

Step-by-step explanation:

The inner function is the one we apply the outer function to.

So

y = \tan{\pi x}

We apply the outer function tangent to \pi x.

So, the inner function is u = \pi x.

The outer function is f(u) = \tan{u}.

The derivative of a compositve function

y = f(u) in which u = g(x) is given by the following function.

y^{\prime} = f^{\prime}(u)*g^{\prime}(x)

So

f(u) = \tan{u}

f^{\prime}(u) = \sec^{2}{u}

u = g(x) = \pi x

g^{\prime}(x) = \pi

So

y^{\prime} = f^{\prime}(u)*g^{\prime}(x)

\frac{dy}{dx} = y^{\prime} = \sec^{2}(u)*\pi = \pi\sec^{2}{\pi x}

7 0
2 years ago
Other questions:
  • A square poster is 14 inches on each side. How long is the diagonal to the nearest of an inch ?
    10·1 answer
  • Halen rents a trailer for $124 per day. The total cost C is a function of the number of days d he rents the trailer. What is the
    15·1 answer
  • A pizza place offers 5 different cheeses and 10 different toppings. In how many ways can a pizza be made with 2 cheese and 4 top
    14·1 answer
  • Two different types of candy cost 2x, 7x. If you buy 2 of each type, write down an algebric expression of the total cost
    15·1 answer
  • Operations on Rational and Irrational Numbers
    14·1 answer
  • Solve for indicated variable of
    8·1 answer
  • Please help marking brainliest
    14·2 answers
  • Perfect adjective word chain​
    15·1 answer
  • A linear relationship that is proportional goes through the ?
    7·2 answers
  • Suppose that we have a sample space S = {E1, E2, E3, E4, E5, E6, E7}, where E1, E2, . . . , E7 denote the sample points. The fol
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!