2 years ago

Which statements are true about the lines? Select three options.

Mathematics

1 answer:

dimaraw [331]2 years ago

7 0

Answer:

The answer is A,B,E

Step-by-step explanation:

Step by step

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Write a number that is 90,000 greter than 8,304,088

Nina [5.8K]

Well I would just do 8,304,088 + 90,000. So, that would equal 8,394,088 in all. Hope this helped!

3 0

2 years ago

Read 2 more answers

at the amusement park each student is given $16 for food this covers the cost of two meals plus $4 for snacks how much money doe

Igoryamba

(16 - 4) ÷ 2
This would give you $6, so that is how much they expect you to spend per meal.

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2 years ago

Find the directional derivative of f(x,y,z)=2z2x+y3f(x,y,z)=2z2x+y3 at the point (−1,4,3)(−1,4,3) in the direction of the vector

Feliz [49]

$f(x,y,z)=2z^2x+y^3$

$f$ has gradient

$\nabla f(x,y,z)=2z^2\,\vec\imath+3y^2\,\vec\jmath+4xz\,\vec k$

which at the point (-1, 4, 3) has a value of

$\nabla f(-1,4,3)=18\,\vec\imath+48\,\vec\jmath-12\,\vec k$

I'm not sure what the given direction vector is supposed to be, but my best guess is that it's intended to say $\vec u=15\,\vec\imath+25\,\vec\jmath$ , in which case we have

$\|\vec u\|=\sqrt{15^2+25^2}=5\sqrt{34}$

Then the derivative of $f$ at (-1, 4, 3) in the direction of $\vec u$ is

$D_{\vec u}f(-1,4,3)=\nabla f(-1,4,3)\cdot\dfrac{\vec u}{\|\vec u\|}=\boxed{\dfrac{294}{\sqrt{34}}}$

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2 years ago

A group of rectangular prisms is shown.

scoray [572]

Answer:

D, E and F

calculating the volume of regular bodies like prims works by multiplication alone.

you need some addition for surface area and for more complicated bodies that when the volume can't be calculated in one step

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2 years ago

If a car travels 210 miles on 12 gallons of gas, what is its unit rate in miles per gallon?

kumpel [21]

210 divided by 12 is 17.5 so u]your answer is 17.5

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3 years ago