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3 years ago

Please help this is due tomorrow us the screen shot

Mathematics

1 answer:

prohojiy [21]3 years ago

5 0

Answer:

A1: 40/3 = 13.33

A2: 1/2 = 20 (half of 40) 40/20 = 2

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-19/2 divided by 38/5

slavikrds [6]

Answer:

-1.25

Step-by-step explanation:

The result can be shown in multiple forms. Exact Form: 385 38 5. Decimal Form: 7.6 7.6. Mixed Number Form: 735 7 3 5. 385 3 8 5 .

8 0

3 years ago

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

3 years ago

5x + 5x + 2 + 6 equals 6x + 4 + 3x plz show steps I will give you a thankyou

amid [387]

$5x + 5x + 2 + 6 = 6x + 4 + 3x \\ 10x + 8 = 9x + 4 \\ 10x - 9x = 4 - 8 \\ x = - 4$

HOPE THIS WILL HELP YOU

3 0

3 years ago

Read 2 more answers

Find the value x and write the property used here.

Serga [27]

Step-by-step explanation:

Soln,

Here,

45°+65°+y(let)=180°[ being a triangle]

or,110°+y=180°

or,y=180°-110°

so,y=70°

Now,

x=?

so,

x+y=180°[being straight angle]

or,x+70°=180°

or,x=180°-70°

x=110°

THEREFORE,x=110°

solved!

6 0

2 years ago

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What is the value of in e^4? A.0 B.1 C.2 D.4

Alex777 [14]

The answer should be D.

Hope it helped you.

7 0

3 years ago

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