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
Lina20 [59]
2 years ago
7

A number decreased by six, and then doubled

Mathematics
2 answers:
PIT_PIT [208]2 years ago
3 0

Answer:

2

Step-by-step explanation:

ElenaW [278]2 years ago
3 0

Answer:

a-6*2

Step-by-step explanation:

You might be interested in
Find the value of y and z.
My name is Ann [436]

Answer:

z= 125 because they are congruent and y = 55 because they are congruent

I hope this is good enough:

3 0
3 years ago
Complete this factor tree to find the prime factors of 492
damaskus [11]

Answer:

246

Step-by-step explanation:

next time use a calculator

divide 492 by 2 and you get 246

divide that by 2 and you get 123

and divide that  by 3 and you get 41

4 0
2 years ago
Read 2 more answers
Solve for a 21a+17+15a=-48
Veseljchak [2.6K]
I hope this helps you

5 0
3 years ago
Suppose that the derivable functions x=x(t) and y=y(t) satisfy xcosy=2.
ololo11 [35]

Applying implicit differentiation, it is found that dy/dt when y=π/4 is of:

a-) -√2 / 2.

<h3>What is implicit differentiation?</h3>

Implicit differentiation is when we find the derivative of a function relative to a variable that is not in the definition of the function.

In this problem, the function is:

xcos(y) = 2.

The derivative is relative to t, applying the product rule, as follows:

\cos{y}\frac{dx}{dt} - x\sin{y}\frac{dy}{dt} = 0

\frac{dy}{dt} = \frac{\cos{y}\frac{dx}{dt}}{x\sin{y}}

Since dx/dt=−2, we have that:

\frac{dy}{dt} = -2\frac{\cos{y}}{x\sin{y}}

When y = π/4, x is given by:

xcos(y) = 2.

x = \frac{2}{\cos{\frac{\pi}{4}}} = \frac{2}{\frac{\sqrt{2}}{2}} = \frac{4}{\sqrt{2}} \times \frac{\sqrt{2}}{\sqrt{2}} = 2\sqrt{2}

Hence:

\frac{dy}{dt} = -2\frac{\cos{y}}{x\sin{y}}

\frac{dy}{dt} = -\frac{1}{\sqrt{2}}\cot{y}

Since cot(pi/4) = 1, we have that:

\frac{dy}{dt} = -\frac{1}{\sqrt{2}} \times \frac{\sqrt{2}}{\sqrt{2}} = -\frac{\sqrt{2}}{2}

Which means that option a is correct.

More can be learned about implicit differentiation at brainly.com/question/25608353

#SPJ1

4 0
1 year ago
Please help <br> 100 pt question
Rudiy27

Answer:

the independent variable is the # of runners while the dependent is the # of water bottles

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Use the Counting Principle to find the probability. Choosing the 7 winning lottery numbers when the numbers are chosen at random
    11·2 answers
  • Explain how to find the area of an enlarged polygon if you know the area of the original polygon and the scale factor of the enl
    15·2 answers
  • What is the exact length of AB
    5·2 answers
  • Write a phrase as an algebraic expression six less than a number times 11
    15·1 answer
  • F=(9/5) C +32, C=15 Can you show me what a graph looks like?
    12·1 answer
  • A company can sell 2000 magazine subscriptions at $40 each. For each $5 increase in the price, it will sell 200 fewer subscripti
    12·1 answer
  • A cone has a radius of 5 and height of 6 Iowk need the answer asap please it's on khan academy!!​
    12·1 answer
  • The empty gas tank of a motor boat is to be filled. The tank is shaped like a rectangular prism with length 20 cm, width
    6·1 answer
  • In her backyard, Mrs. Wilson set up an area for the kids to run races. The race area was 15 yards across. Mrs. Wilson put cones
    10·2 answers
  • PLSSS HELP IF YOU TURLY KNOW THISS
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!