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3 years ago

PLEASE HELP!!! WILL GIVE BRAINLIEST!!!!!

Mathematics

1 answer:

Ne4ueva [31]3 years ago

5 0

Step-by-step explanation:

$g(x) = 3^{\frac{x}{2}}$

For $x = -2$ , we get

$g(-2) = 3^{\frac{-2}{2}} = 3^{-1} = \frac{1}{3}$

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PLEASE HELP ME FIND YHE SLOPE <br><br> 20 POINTS HELP ME PLWASW

NeX [460]

C if im wrong I’m sorry

3 0

3 years ago

Read 2 more answers

A spherical balloon currently has a radius of 19cm. If the radius is still growing at a rate of 5cm or minute, at what rate is a

miv72 [106K]

Answer:

22670.8 cm³/min

Step-by-step explanation:

Given:

Radius of the balloon at a certain time (r) = 19 cm

Rate of growth of radius is, $\frac{dr}{dt}=5\ cm/min$

The rate at which the air is pumped in the balloon can be calculated by finding the rate of increase in the volume of the balloon.

So, first we find the volume of the sphere in terms of 'r'. As the balloon is spherical in shape, the volume of the balloon is equal to the volume of a sphere. Therefore,

Volume of balloon is given as:

$V=\frac{4}{3}\pi r^3$

Now, rate of increase of volume is obtained by differentiating both sides of the equation with respect to time 't'.

Differentiating both sides with respect to time 't', we get:

$\frac{dV}{dt}=\frac{d}{dt}(\frac{4}{3}\pi r^3)\\\\\frac{dV}{dt}=\frac{4\pi}{3}(3r^2)(\frac{dr}{dt})\\\\\frac{dV}{dt}=4\pi r^2(\frac{dr}{dt})$

Now, plug in 19 cm for 'r', 5 cm per minute for $\frac{dr}{dt}$ and solve for $\frac{dV}{dt}$ . This gives,

$\frac{dV}{dt}=4\pi (19 cm)^2(5\ cm/min)\\\\\frac{dV}{dt}=4\times 3.14\times 361\times 5\ cm^3/min\\\\\frac{dV}{dt}=22670.8\ cm^3/min$

Therefore, the rate at which the air is being pumped into the balloon is 22670.8 cm³/min.

4 0

4 years ago

Suffocating with homework, comment a star if you can assist with four algebra homework questions. Twenty points.

natita [175]

What do you need help with? Will do my best.

8 0

3 years ago

PLEASE pLEASE HELP!!!!!!!!

sleet_krkn [62]

Answer: B = 73

Step-by-step explanation:

Since A = 17 degrees and there's already a right angle (90 degrees)

They add up to 107 degrees meaning the last angle is 73 because

the sum of interior angles add up to 180.

I'm sorry I couldn't find the other ones ( I don't have time )

but I'll give you a hint. You'll need to use Sine, Cosine, or Tangent

3 0

3 years ago

Is 4:6 equivalent to 2:3

Troyanec [42]

Yes. 4/2=2 6/3=2 If the numbers divide to create the same number, they are equivalent.

3 0

3 years ago