2 years ago

Which statement correctly describe the data shown in the scatter plot?

Mathematics

1 answer:

sammy [17]2 years ago

5 0

Answer:

The scatter plot shows a negative association.

Step-by-step explanation:

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Andy filled four glasses with water at different temperatures as shown under each glass.

iragen [17]

Answer:

black

Step-by-step explanation:

because

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3 years ago

webassign If a snowball melts so that its surface area decreases at a rate of 6 cm2/min, find the rate at which the diameter dec

drek231 [11]

Answer:

The answer is $\frac{3}{10\pi } cm/min$

Step-by-step explanation:

Assuming the snowball is a perfect sphere, then if A denotes the surface area and D the diameter then:

$A=4\pi r^{2} = 4\pi (\frac{D}{2} )^{2} =\pi D^{2}$

Differentiating wrt r we have:

$\frac{dA}{dD} =2\pi D$

We are told that $\frac{dA}{dt}= -6$ and we want to find $\frac{dD}{dt}$

By the chain rule we have:

$\frac{dA}{dD}=\frac{dA}{dt}.\frac{dt}{dD}=\frac{\frac{dA}{dt} }{\frac{dD}{dt} }$

∴ $2\pi D=-\frac{6}{\frac{dD}{dt} }$

∴ $\frac{dD}{dt}=-\frac{6}{2\pi D}$

When D=10 then

$\frac{dD}{dt} =-\frac{6}{10*2\pi } =-\frac{3}{10\pi }$

The sign (-) shows that the D is decreasing.

3 0

3 years ago

What is bigger 7/8 or 13/15?

erastovalidia [21]

The answer would be 13/15

8 0

3 years ago

9 + (-8) using a number line

Lelu [443]

Answer:

9 + (-8) = 1

Step-by-step explanation:

4 0

2 years ago

6x²-13x=-6<br> Solve the equation using the quadratic formula

nalin [4]

Answer:

x=2/3, x=3/2

Step-by-step explanation:

6x^2-13x=-6

6x^2-13x+6=0

6x^2-4x-9x+6=0

2x*(3x-2)-3(3x-2)=0

(3x-2)8(2x-3)=0

3x-2=0

2x-3=0

x=2/3

x=3/2

6 0

3 years ago