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3 years ago

Can a polygon be a pentagon yes or no please answer!

Mathematics

2 answers:

Naddika [18.5K]3 years ago

5 0

A polygon is plane shape with straight sides. Therefore, a pentagon is a polygon!

alexdok [17]3 years ago

3 0

Yes, a pentagon can be a polygon.

Any shape with straight sides can be a polygon, including hexagons, pentagons, triangles, squares, rectangles, etc. But this does not include shapes such as a circle or oval since they do not have straight sides.

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Solving one step equation x/9=-5

kogti [31]

Answer:

x=-45

Step-by-step explanation:

You do inverse operation. Since x/9=-5, you would have to multiply -5 by 9 to get -45 because multiplication is the inverse of division.

4 0

3 years ago

I can't figure this out can someone answer and list steps

Pachacha [2.7K]

It would be D. Since X=2 in the beginning, and and is 8 in the end. 2*4 is 8.
So, -5 times four would be 20, but not in this context. it would be -20.

5 0

3 years ago

A model for the population p(t) in a suburb of a large city is given by the initial-value problem dp dt = p(10−1 − 10−7p), p(0)

irina1246 [14]

Answer:

T = 200 months

Step-by-step explanation:

Given the model to be

dp/dt = p(10-1-10-7p) where p(0) = 6000

dp/dt = p(-1-7p)

dp/dt = -p+7p²

But since P(0) = 6000

We plug this value into the equation

P = -6000+7(6000)²

P = -6000+252000000

P = 251994000. .limiting value

Differentiating dp/dt w.r.t p

dp/dt = -1+14p

dp'/dt = 14p-1

Plugging p(0) = 6000 into the above we have that

dp'/dt = 14(6000)-1

P' = 84000

Time population would be equal to 3/2 the limiting value

T = 3/2× 84000 = 126000

T = 25199400/126000

T = 199.99months

T = 200 months.

5 0

2 years ago

Read 2 more answers

An oil slick is expanding as a circle. The radius of the circle is currently 2.5 inches and is increasing at a rate of 6.5 inche

aleksandrvk [35]

Answer:

$A = \pi r^2$

So we can express the radius in terms of the hours elapsed like this:

$r = 2.5 + 6.5 h$

And the reason of this is because each hour the radius increase 6.5 inches, and if we replace in the formula of area we got:

$A = \pi (2.5 +6.5 h)^2$

And this function would represent the area of the circle as function of the hours elapsed, $h\geq 0$

Step-by-step explanation:

For this case we know the radius of a circle given $r = 2.5 in$ and we also know the incresing rate for the radius:

$\frac{dr}{dt}= 6.5 \frac{inches}{\hour}$

And we want to express the are of the circle A as a function of h = the number of hours elapsed.

We know that the area of a circle is given by:

$A = \pi r^2$

So we can express the radius in terms of the hours elapsed like this:

$r = 2.5 + 6.5 h$

And the reason of this is because each hour the radius increase 6.5 inches, and if we replace in the formula of area we got:

$A = \pi (2.5 +6.5 h)^2$

And this function would represent the area of the circle as function of the hours elapsed, $h\geq 0$

7 0

3 years ago

In the morning, Jasmine biked to her grandma's house in 45 minutes. When she was biking back home in the evening it was foggy an

yKpoI14uk [10]

Answer: 8.4 miles

Step-by-step explanation: Hope this helps

7 0

2 years ago