2 years ago

Lilly jogs one half of a mile in 1/10 of an hour what is Lilly's rate in miles per hour

Mathematics

1 answer:

Sidana [21]2 years ago

6 0

1/2 of a mile in 1/10 of 60 (.1 times 60= 6) 6mph

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Mrs.Storz is driving at 48.5 mph for 1.2 hours. What will be the distance travelled by Mrs.Storz?

Anna35 [415]

Answer:

58.2

Step-by-step explanation:

48.5*1.2=58.2

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2 years ago

Function is defined by f(x) = x2 - 4x + 8. The graph of function g is shown.

xenn [34]

Answer:5

Step-by-step explanation:

couldn’t tell ya g

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2 years ago

Decide whether you would use a permutation, a combination, or neither. Next, write the solution using permutation notation or co

Zepler [3.9K]

Answer:

Permutation is used.

No. of arrangements = 1260

Step-by-step explanation:

Permutation is used for choosing & arrangement of 'r' out of 'n' objects, when sequence is important.

Total no. of alphabets in CORRECT = 7

C is repeated twice, R is repeated twice

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3 years ago

If c ī b, what is m<2?

natulia [17]

Answer:

<2 = 90

Step-by-step explanation:

If the lines are perpendicular, the angles are 90 degrees

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3 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

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

4 0

3 years ago