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3 years ago

Math Help: Which two answers are correct?

Mathematics

1 answer:

EastWind [94]3 years ago

6 0

Answer:

see below

Step-by-step explanation:

The odd degree (7) tells you the end behaviors are in opposite directions. The negative leading coefficient (-4) tells you the sign of y will be opposite the sign of x.

For x going toward negative infinity, y goes toward positive infinity.

For x going toward positive infinity, y goes toward negative infinity.

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How do I solve for x ?X +8=-15

DanielleElmas [232]

Subtract 8 from both sides
So you end up with x = -23

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How far up does the ladder reach on the building?

pychu [463]

Step-by-step explanation:

The question missing attachment (incomplete)

But the question said how far up does the ladder reach on the building?

See the attachment

Let the tita be 60° and the height of the building be 50 meters

Now

Opposite/hypotenuse = sin(tita)

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Find the coordinates of the centroid of triangle RST. SHOW YOUR WORK so I can see if the answer makes sense (no links)

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3 years ago

Which of the following statements is true? A 15 kg box has more inertia than a 10 kg box. Forces occur in equal and opposite for

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bearhunter [10]

Answer:

$\frac{dh}{dt}=-\frac{1}{2\pi}cm/min$

Step-by-step explanation:

From similar triangles, see diagram in attachment

$\frac{r}{4}=\frac{h}{16}$

We solve for $r$ to obtain,

$r=\frac{h}{4}$

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$V=\frac{1}{3}\pi r^2h$

We substitute the value of $r=\frac{h}{4}$ to obtain,

$V=\frac{1}{3}\pi (\frac{h}{4})^2h$

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$V=\frac{1}{48}\pi h^3$

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$\frac{dV}{dt}=\frac{\pi}{16}h^2 \frac{dh}{dt}$

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This implies that $\frac{dV}{dt}=-2cm^3/min$ .

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