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3 years ago

The diameter of a sphere is 4 centimeters. Which represents the volume of the sphere?

Mathematics

2 answers:

Ostrovityanka [42]3 years ago

8 0

Answer:

32/3 pi

Step-by-step explanation:

Not sure how to explain

bija089 [108]3 years ago

7 0

Answer:

32/3 pi

Step-by-step explanation:

The volume of the sphere is 4/3 pi r^3. r=2 because it is 1/2 of the diameter. Now just plug it into the equation. 4/3 pi 2^3= 4/3 pi 8= 32/3 pi

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svp [43]

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3 years ago

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100 POINTS HELP ASAP Linear Combination

notka56 [123]

Answer:

1) $x=\dfrac12$

2) $n = -3 \ \ \textsf{and} \ \ m = -4$

3) see below

4) A: 0 = 1

Step-by-step explanation:

Question 1

$15-0.5(4x-2)+4x=17$

$\implies 15-2x+1+4x=17$

$\implies 2x+16=17$

$\implies 2x=1$

$\implies x=\dfrac12$

Question 2

$\textsf{rearrange} \ n=m+1 :$

$\implies -m=-n+1$

$\textsf{add equations} \ -m=-n+1 \ \textsf{and} \ m=2n+2:\\$

$\implies0=n+3$

$\implies n=-3$

$\textsf{substitute} \ \ n=-3 \ \ \textsf{into} \ \ m=n-1:$

$\implies m=-3-1$

$\implies m=-4$

Question 3

subtract the second equation from the first

divide both sides by -4

substitute found value for y into first equation

solve for x

Question 4

$3j=k$

$k=3j+1$

$\textsf{rearrange} \ 3j=k :$

$\implies -k=-3j$

$\textsf{add equations}\ -k=-3j \ \ \textsf{and}\ \ k=3j+1:$

$\implies 0=1$

Solution = A

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2 years ago

One winter day, the outside temperature, y, was never below −1°. The inside of a car was always warmer than the temperature outs

sammy [17]

Answer:

The correct option is;

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Step-by-step explanation:

The inequality representing the first line is y ≥ -1

The inequality representing the second line is y > x + 4

Therefore, the first line is a solid horizontal line with the shaded region above the line

The second line is a line with a broken line with positive slope slope with the shaded region being above the line and to the left

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3 years ago

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liubo4ka [24]

Answer:

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