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worty [1.4K]
3 years ago
14

Amari claims that a rectangle is sometimes a parallelogram but a parallelogram is always a

Mathematics
1 answer:
Maslowich3 years ago
6 0

Answer:

The statement is false.

Step-by-step explanation:

A parallelogram is a figure of four sides, such that opposite sides are parallel

A rectangle is a four-sided figure such that all internal angles are 90°

Here, the statement is:

"A rectangle is sometimes a parallelogram but a parallelogram is always a

rectangle."

Here if we found a parallelogram that is not a rectangle, then that is enough to prove that the statement is false.

The counterexample is a rhombus, which is a parallelogram that has two internal angles smaller than 90° and two internal angles larger than 90°, then this parallelogram is not a rectangle, then the statement is false.

The correct statement would be:

"A parallelogram is sometimes a rectangle, but a rectangle is always a parallelogram"

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Alina [70]

Answer:

the answer would be b

Step-by-step explanation:

hoped that helped:P

8 0
2 years ago
A cylinder has a height of 4 inches greater than the radius of its base. Find the radius and the height to the nearest inch if t
anastassius [24]

Answer:

h=5in, r=1in

Step-by-step explanation:

The volume of a cylinder is:

V=\pi*r^2*h

where r is the radius and h is the height.

The height is 4 inches greater that the radius, so:

h=r+4in

Substituting this in the formula for volume:

V=\pi*r^2*(r+4)

the volume is V=5\pi in^3

thus:

5\pi in^3=\pi*r^2*(r+4in)

Dividing everything between pi:

5in^3=r^2*(r+4in)

5in^3=r^3*+4r^2

We can see that the solution for this is r=1in

since (1)^3*+4(1)^2=1+4=5

We have the radius, now we find the height:

h=r+4in=1in + 4in = 5in

h=5in, r=1in

7 0
3 years ago
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Given f(x)=3x-2 and g(x)=5x, what is f(x)•g(x)
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Answer:

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Step-by-step explanation:

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