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3 years ago

Responses which are acquired after birth are called _____ responses.

Mathematics

1 answer:

hichkok12 [17]3 years ago

7 0

Answer:

Learned

Step-by-step explanation:

I luv u!

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It cost $35 for one adult and two children to attend a show.it cost $60 for two adults and three children to attend the same sho

yarga [219]

Answer:

i got 2100

Step-by-step explanation:

i got that by multiplying 60 x 35 = 2100

hope this helps

let me know if it is right

4 0

3 years ago

The surface area of a melting snowball decreases at a rate of3.8cm2/min. Find the rate at which its diameter decreases when the

Scorpion4ik [409]

Answer:

Step-by-step explanation:

This is a pretty basic related rates problem. I'm going to go through this just like I do in class when I'm teaching it to my students.

We see we have a snowball, which is a sphere. We are talking about the surface area of this sphere which has a formula of

$S=4\pi r^2$

In the problem we are given diameter, not radius. What we know about the relationship between a radius and a diameter is that

d = 2r so

$\frac{d}{2}=r$ Now we can have the equation in terms of diameter instead of radius. Rewriting:

$S=4\pi(\frac{d}{2})^2$ which simplifies to

$S=4\pi(\frac{d^2}{4})$ and a bit more to

$S=\pi d^2$ (the 4's cancel out by division). Now that is a simple equation for which we have to find the derivative with respect to time.

$\frac{dS}{dt}=\pi*2d\frac{dD}{dt}$ Now let's look at the problem and see what we are given as far as information.

The rate at which the surface area changes is -3.8, and we are looking for $\frac{dD}{dt}$ , the rate at which the diameter is changing, when the diameter is 13. Filling in:

$-3.8=\pi(2)(13)\frac{dD}{dt}$ and solving for the rate at which the diameter is changing:

$-\frac{3.8}{26\pi}=\frac{dD}{dt}$ and divide to get

$\frac{dD}{dt}=-.459\frac{cm}{min}$ Obviously, the negative means that the diameter is decreasing.

7 0

3 years ago

Write the equations of the lines on the grid.

klasskru [66]

Answer;
red line: y = x
green line: y = -x

6 0

3 years ago

The graph shows the motion of two cars starting at different places on a highway. Their speeds can be compared by comparing the

Mars2501 [29]

Answer:the dot goes in in the blue line in 0 and 150 just like the blue line

Step-by-step explanation:I hope you get what I mean

8 0

3 years ago

What would you get if you multiple-2x with x

bezimeni [28]

You would get -2x^2.

4 0

3 years ago