3 years ago

(I need help again)

Mathematics

2 answers:

Basile [38]3 years ago

8 0

The answer is 5. It’s farthest to the right

zheka24 [161]3 years ago

5 0

Answer:

Step-by-step explanation:

on a graph all of the regular numbers are on the left

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Al and Barb start their new jobs on the same day. Al's schedule is 3 work-days followed by 1 rest-day. Barb's schedule is 7 work

Murljashka [212]

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3 years ago

Abele bought a skirt and blouse. The skirt cost $15 more than the blouse. Let b represent the cost of the blouse. Write an algeb

julsineya [31]

S = b + 15

s = skirt
b = blouse

The skirt is $15 more than the blouse

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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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3 years ago

ΔABC undergoes a translation to become ΔA'B'C'. Are the triangles congruent, similar, neither or both? Explain.

Alenkasestr [34]

I can’t solve without a graph.

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2 years ago

Let A = {1, 2, 3, 4, 5} and B = {2, 4}. What is A ∩ B? (1 point)

katen-ka-za [31]

Answer:

{2, 4}.

Step-by-step explanation:

A = {1, 2, 3, 4, 5} and B = {2, 4}.

A ∩ B?

This means intersection or what is in common

A ∩ B = {2, 4}.

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3 years ago