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3 years ago

Please help =/ And my heard hurt...

Mathematics

1 answer:

Ber [7]3 years ago

4 0

Not too sure but i think it’s D

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How many different pizzas can be ordered if the restaurant offers 15 different toppings and there is no limit to

Reil [10]

I am not extremely sure about this but I think the amount of different pizza that can be ordered is 15. Because, they offer exactly 15 different toppings. Right? No, probably wrong:(

4 0

4 years ago

Read 2 more answers

How to find the unknown measure of a rectangle whose area is 91 and width is 7.

motikmotik

Answer:

Length of rectangle= 13

Step-by-step explanation:

Area= Length × width

91= length × 7

length= 91 ÷7 = 13

5 0

3 years ago

Find the elapsed time for a person who worked from:

Sophie [7]

Answer:

11. 9hrs

12. 5hrs 35min

13. 3hrs 48 min

Step-by-step explanation:

Makes it a bit easier if you convert to 24 hr time.

11. 10 - 19 is 9hrs

12. 545-1120 is 11-5 20-45 -> 6hrs -25min -> 5hrs 35min

13. 1800 - 2148 is 21-18 48-00 -> 3hrs 48 min

5 0

3 years ago

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Find the derivative of the function at P 0 in the direction of A. f(x,y,z) = 3 e^x cos(yz), P0 (0, 0, 0), A = - i + 2 j + 3k

Alik [6]

The derivative of $f(x,y,z)$ at a point $p_0=(x_0,y_0,z_0)$ in the direction of a vector $\vec a=a_x\,\vec\imath+a_y\,\vec\jmath+a_z\,\vec k$ is

$\nabla f(x_0,y_0,z_0)\cdot\dfrac{\vec a}{\|\vec a\|}$

We have

$f(x,y,z)=3e^x\cos(yz)\implies\nabla f(x,y,z)=3e^x\cos(yz)\,\vec\imath-3ze^x\sin(yz)\,\vec\jmath-3ye^x\sin(yz)\,\vec k$

and

$\vec a=-\vec\imath+2\,\vec\jmath+3\,\vec k\implies\|\vec a\|=\sqrt{(-1)^2+2^2+3^2}=\sqrt{14}$

Then the derivative at $p_0$ in the direction of $\vec a$ is

$3\,\vec\imath\cdot\dfrac{-\vec\imath+2\,\vec\jmath+3\,\vec k}{\sqrt{14}}=-\dfrac3{\sqrt{14}}$

3 0

4 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%5C%5Cx%5E%7B2%7D%20-%203%5C%5C" id="TexFormula1" title="\sqrt\\x^{2} - 3\\" alt="\sqrt

Liono4ka [1.6K]

You can’t simplify it more than it is

3 0

3 years ago