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4 years ago

What is the area of this circle?

Mathematics

1 answer:

gulaghasi [49]4 years ago

6 0

Answer:

37.68 cm

Step-by-step explanation:

3.14 * 12 = 37.68

Hope this helps!

<em>please mark brainliest!!!!!</em>

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A store purchase 250 pastries for $100 they were so our 250 pastries for $150 what is the store profit per pastry

Vedmedyk [2.9K]

Answer:

The profit is 20 cents per pastry

Step-by-step explanation:

4 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

Please help thanks!

Kryger [21]

Answer:

All except irrational-

Step-by-step explanation:

100/100 is 1. This makes it real, an integer, whole,natural, and rational.

4 0

4 years ago

Solve the inequality.<br><br> y – 2 > 3

wlad13 [49]

Answer:

Step-by-step explanation:

im trying my best ill come back to this rn

4 0

3 years ago

Can you please help !!!

Nataly [62]

1)5gallons--->10 fish
20 gallons---->(20*10/5)=40

10fish--->5gallons
1fish---->(1*5/10)=0.5 gallons

10--->5
50--->(50*5/10)=25 gallons

5 0

4 years ago