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2 years ago

Which is bigger 7/50 or 11/64?

Mathematics

1 answer:

Hoochie [10]2 years ago

7 0

11/74 because it results 0,17 while 7/50 results 0,14

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To find the extreme values of a function f(x,y) on a curve xequalsx(t), yequalsy(t), treat f as a function of the single vari

pychu [463]

Answer:

Absolute maximum is 2

Absolute minimum at -2

Step-by-step explanation:

The given parametric functions are:

$x=2\cos t,y=2\sin t$

By the chain rule:

$f'(t)=\frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

$\frac{df}{dt} =\frac{2 \cos t}{-2\sin t} =-\cot(t)$

At fixed points, $f'(t)=0$

$\implies -\cot (t)=0$

This gives $t=\frac{\pi}{2} ,\frac{3\pi}{2}$ on $0\le t\le 2\pi$

This implies that the extreme points are $(2\cos \frac{\pi}{2}, 2\sin \frac{\pi}{2})=(0,2)$ and $(2\cos \frac{3\pi}{2}, 2\sin \frac{3\pi}{2})=(0,-2)$

By eliminating the parameter, we have $x^2+y^2=4$

This is a circle with radius 2, centered at the origin.

Hence (0,2) is an absolute maximum ,at $t=\frac{\pi}{2}$ and (0,-2) is an absolute minimum at $t=\frac{3\pi}{2}$

7 0

2 years ago

I'll give brainlest to first correct answer!!!

zvonat [6]

Answer:

I think there both negative but I'm not sure

Step-by-step explanation:

if one is a positive and one is a negative then reflect over the y axis they should both turn negative

6 0

1 year ago

A cylindrical water towers has a diameter of 15 meters and a height of 5 meters. About how many gallons of water can the gallon

Artemon [7]

Answer:

233445.54 gallons

Step-by-step explanation:

Given data

Diameter= 15m

Radius= 7.5m

Height= 5m

Let us first find the volume

the volume of a cylinder is given as

V= πr^2h

substitute

V= 3.142*7.5^2*5

V= 3.142*56.25*5

V=883.6875 m^3

Hence the volume in gallons is

233445.54 gallons (from conversion tables)

7 0

2 years ago

( 3+2 )²<br>simplify it

Pavlova-9 [17]

Answer:

First we have to finish the brackets, always

3+2=5, so

it will be 5 square

which means you have to multiply 5 by itself

5×5=25

so your answer is 25

Step-by-step explanation:

I hope I explained well, please give me brainliest

6 0

2 years ago

Read 2 more answers

1/3(6x-12)=8(1/2x+1)-2

dlinn [17]

X = -5 is the answer I believe

8 0

2 years ago