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
il63 [147K]
3 years ago
9

The diameter of a quarter is about 2.4 centimeters. a. What is the circumference of a quarter ? (Use 3.14 for pie) b. What is th

e ratio of the radius of the quarter to the diameter of the quarter?
Mathematics
1 answer:
Korolek [52]3 years ago
5 0
Radius=1.2
circuimsantece=2*3.14*1.2=76.36
circuimsantece of quarter=76,36/4=19.09
ratio=1/2
You might be interested in
A seat’s position on a Ferris wheel can be modelled by the function y = 18 cos 2.8(x + 1.2) + 21, where y represents the height
Hitman42 [59]

Step-by-step explanation:

A ball is thrown straight up from a rooftop 320 feet high. The formula below describes the ball's height above the ground, h, in feet, t seconds after it was thrown. The ball misses the rooftop on its way down and eventually strikes the ground. How long will it take for the ball to hit the ground? Use this information to provide tick marks with appropriate numbers along the horizontal axis in the figure shown.

h=-16t^2+16t+320

6 0
3 years ago
Read 2 more answers
What is the answer to 8x^3+125 by factoring the perfect cube?
expeople1 [14]

Answer:

\large\boxed{8x^3+125=(2x+5)(4x^2-10x+25)}

Step-by-step explanation:

8x^3+125=2^3x^3+5^3=(2x)^3+5^3\\\\\text{use}\ a^3+b^3=(a+b)(a^2-ab+b^2)\\\\=(2x+5)((2x)^2-(2x)(5)+5^2)\\\\=(2x+5)(4x^2-10x+25)

3 0
3 years ago
Consider the following equation. f(x, y) = y3/x, P(1, 2), u = 1 3 2i + 5 j (a) Find the gradient of f. ∇f(x, y) = Correct: Your
BaLLatris [955]

f(x,y)=\dfrac{y^3}x

a. The gradient is

\nabla f(x,y)=\dfrac{\partial f}{\partial x}\,\vec\imath+\dfrac{\partial f}{\partial y}\,\vec\jmath

\boxed{\nabla f(x,y)=-\dfrac{y^3}{x^2}\,\vec\imath+\dfrac{3y^2}x\,\vec\jmath}

b. The gradient at point P(1, 2) is

\boxed{\nabla f(1,2)=-8\,\vec\imath+12\,\vec\jmath}

c. The derivative of f at P in the direction of \vec u is

D_{\vec u}f(1,2)=\nabla f(1,2)\cdot\dfrac{\vec u}{\|\vec u\|}

It looks like

\vec u=\dfrac{13}2\,\vec\imath+5\,\vec\jmath

so that

\|\vec u\|=\sqrt{\left(\dfrac{13}2\right)^2+5^2}=\dfrac{\sqrt{269}}2

Then

D_{\vec u}f(1,2)=\dfrac{\left(-8\,\vec\imath+12\,\vec\jmath\right)\cdot\left(\frac{13}2\,\vec\imath+5\,\vec\jmath\right)}{\frac{\sqrt{269}}2}

\boxed{D_{\vec u}f(1,2)=\dfrac{16}{\sqrt{269}}}

7 0
3 years ago
Name a diameter for the circle.<br><br> A.) DH<br> B.) DG<br> C.) EF<br> D.) FH
Phantasy [73]
D. FH

Diameter-
a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
4 0
3 years ago
Lin ran 29 meters in 10 seconds. she ran at a constant speed. At this rate, how far can she run in 1 minute
scoundrel [369]

Answer:

2.9 per second

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Find the average rate of change for the given function from x = 1 to x = 2.
    15·1 answer
  • HURRY PLS this is due in 33 minutes pls will give thanks and brainliest
    7·2 answers
  • Which of the following does not represent a function?
    11·1 answer
  • Please help me and show your work
    12·1 answer
  • What is 23.62 as a fraction
    10·1 answer
  • How do you check 4b+6=-2
    5·2 answers
  • HELP me solve this math problem!
    6·1 answer
  • Sue Mitchell Weighted 8 lbs. 13 oz. when she was born she now weighs 93 lbs. 5 oz. how much has she gained since birth
    8·2 answers
  • 2
    8·1 answer
  • Find the distance between A and B ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!