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
riadik2000 [5.3K]
3 years ago
6

A circle has a circumference of x feet and an area of y square feet. If x=2y, what is the radius of the circle

Mathematics
2 answers:
IgorC [24]3 years ago
8 0

Formula: circumference = 2πr

Formula: Area = πr²

-

Given circumference = x and area = y and x = 2y

-

2πr = 2πr²

Divide by 2πr on both sides:

r = 1

-

Answer: r = 1

lapo4ka [179]3 years ago
3 0

x=2y is linear and can also be writtend as y=x/2

You might be interested in
Four more than twice a number<br><br>a.2x+4<br><br><br>b.4x+2<br><br>c.6x<br><br>d.2x &gt; 4​
makkiz [27]

Answer:

a. 2x + 4

Step-by-step explanation:

Four more than twice a number

Let x = unknown number

Four more than twice of x

Twice of x can be written as 2x

Four more than 2x

Four more can be written as + 4

We get 2x + 4

6 0
2 years ago
A snowboarder descends a 1200-foot hill in 3 minutes. What is the mean change in elevation per minute? (400 is not correct!)
marissa [1.9K]
Dundeejdjdjrhrhhzrdjdjfjjfhfhrhfjdjcuufjrjrhrhurududuufucufufuru
3 0
3 years ago
The voltage V in a simple electrical circuit is slowly decreasing as the battery wears out. The resistance R is slowly increasin
hoa [83]

Answer:

\frac{dI}{dt}=-0.00016 A/s

Step-by-step explanation:

We are given that

By ohm's law

V=IR

R=389 ohm

I=0.03 A

\frac{dV}{dt}=-0.06V/s

\frac{dR}{dt}=0.07ohm/s

We have to find rate of change of current I means \frac{dI}{dt}

Differentiate the equation w.r.t t

\frac{dV}{dt}=\frac{dI}{dt}R+I\frac{dR}{dt}

Substitute the values then we get

-0.06=\frac{dI}{dt}\times 389+0.03\times 0.07

-0.06=389\frac{dI}{dt}+0.0021

-0.06-0.0021=389\frac{dI}{dt}

-0.0621=389\frac{dI}{dt}

\frac{dI}{dt}=\frac{-0.0621}{389}=-0.000160 A/s

Hence, the current I is changing at the rate=-0.00016A/s

4 0
3 years ago
The explicit rule for a sequence and one of the specific terms is given. Find the position of the given
AlekseyPX

Answer:

14th term

Step-by-step explanation:

7 0
3 years ago
Rewrite the expression in the form 2".<br> E
Vlad [161]

Answer:

z^ {8/5}

Step-by-step explanation:

(z^{\frac{-4}{3})^{\frac{-6}{5} } \\We\ know\ that\ a^{(b)^c} = a^{bc}\\\\Hence, \\\\{z^{\frac{-4}{3})^{\frac{-6}{5}}\\}={z^{\frac{-4}{3}*\frac{-6}{5}\\}\\=z^{\frac{24}{15}}\\=z^\frac{8}{5}

6 0
3 years ago
Other questions:
  • Compare the functions shown below: f(x) = (x + 3)2 − 2 g(x) linear graph with y intercept of negative 3 over 2 and x intercept o
    12·1 answer
  • donte bought a computer that was 20%off the regular price of $1,080. if an 8% sales tax was added to the cost of the computer, w
    12·1 answer
  • I need help with this question
    13·1 answer
  • Mr miller works 7 hours a day monday through friday how many hours does he work in two weeks
    5·2 answers
  • Write the sentence as an equation. 392 plus the product of f and 340 is equal to f
    14·1 answer
  • (!!!20 Points!!!)<br> 7x6+5x2+x-9<br> 7x6-4x+1/x<br> Please view image below
    11·1 answer
  • What’s 2 + 2? <br> A. 0<br> B. 1<br> C. 2<br> D. 4
    10·2 answers
  • Help me plz!!!!!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • Please help me thanks a lot
    5·2 answers
  • Simplify this question
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!