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3 years ago

Explanation plsss..

Mathematics

1 answer:

ollegr [7]3 years ago

4 0

Answer:

You will need 20 sides to complete the loop.

Step-by-step explanation:

The question isn't quite clear given how small the corner is, but I assume that we are looking to complete the circle if the pentagon and square are repeated in a loop

We can also see - assuming that those are proper equal-sided polygons, that PQ is the same length as PV

With that in mind, We can solve this by noting that the angle of a corner in a square is 90 degrees, and in a pentagon it's 108 degrees.

108 - 90 is equal to 18. This means that PQ is at eighteen degrees to YP. Also, QM, (which will be equivalent to the next VP is eighteen degrees to PQ.

This means that each polygon is rotated 18 degrees relative to it's neighbour.

With all that we can say that the total polygons we need to form a circle is 360/18 = 20, So you will need 20 polygons, or ten squares and ten pentagons to complete the loop.

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Ben Pumpiniron applies an upward force to lift a 129-kg barbell to a height of 1.98 m at a constant speed. How much work has Bee

Varvara68 [4.7K]

Answer:

The work has Been done is 2503.12 J .

Step-by-step explanation:

Formula for workdone is given by

Workdone = Force × Distance

As w = mg

Where m is the mass , g is the acceleration of gravity .

As given

Ben Pumpiniron applies an upward force to lift a 129-kg barbell to a height of 1.98 m at a constant speed.

m = 129 kg

g = 9.8 m / s²

Putting in the w =mg

w = 129 × 9.8

= 1264.2 kg m / s²

(As given in the question force is constant thus force doing the work is equal to weight .)

Thus

Force = 1264.2 kg m / s²

Workdone = Force × Distance

= 1264.2 × 1.98

= 2503.12 J (Approx)

Therefore the work has Been done is 2503.12 J .

7 0

3 years ago

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What is equivalent to 9/18

Tresset [83]

9/18 simplifies to 1/2, so you can make equivalent ratios by multiplying the numerator and the denominator by the same factor.

so for instance, 3/6 and 4/8 are equivalent.

6 0

3 years ago

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It is angle measure please help

loris [4]

Opposite angles are equal

$\\ \rm\longmapsto m+357=4m+6$

$\\ \rm\longmapsto 357-6=4m-m$

$\\ \rm\longmapsto 3m=351$

$\\ \rm\longmapsto m=\dfrac{351}{3}$

$\\ \rm\longmapsto m=117$

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2 years ago

0.11 as a fraction and in the simplest form

vovangra [49]

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3 years ago

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Penelope determined the solutions of the quadratic function by completing the square. F(x) = 4x2 8x 1 –1 = 4x2 8x –1 = 4(x2 2x)

Ymorist [56]

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

<h3>What is quadratic equation ?</h3>

Any equation of the form $ax^2+bx+c=0$ where x is variable and a, b, and c are any real numbers where a ≠ 0 is called quadratic equation .

Given work of Penelope is

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+1=4\left(x^{2}+2 x+1\right) \\&0=4(x+2)^{2} \\&0=(x+2)^{2} \\&0=x+2 \\&-2=x\end{aligned}$

Now we can see that Penelope determined the solutions of the quadratic function by completing the square. so he must have been done as following

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+4=4\left(x^{2}+2 x+1\right) \\&3=4(x+2)^{2} \\&\frac{3}{4} =x+2)^{2} \\&\frac{\pm\sqrt3}{2} =x+2 \\&\frac{-2\pm\sqrt3}{2} =x\end{aligned}$

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

To learn more about quadratic equations visit : brainly.com/question/1214333

8 0

2 years ago

Explanation plsss..​

Explanation plsss..