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3 years ago

Help meeee pleaseeeeeWhat percent of 110 is 44

Mathematics

1 answer:

Vikentia [17]3 years ago

6 0

Answer: 40%

Step-by-step explanation:

Let the percent be x , then

$\frac{x}{100}$ x 110 = 44

110x = 4400

x = 4400/110

x = 40

Therefore : 44 is 40 percent of 110

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The product of nine and the total of r and eight

yuradex [85]

Answer:

9(r + 8) = 9r +72

Step-by-step explanation:

9(r + 8)

9r + 72

Hope this helps!

7 0

2 years ago

the figure below shows a circle centre of radius 10 cm the chord PQ=16cm calculate the area of the shaded region

m_a_m_a [10]

Step-by-step explanation:

OPQ originally forms a sector, the formula for sector is

$\frac{x}{360} \pi {r}^{2}$

where x is the degrees of rotation between the two radii.

We know three sides length and is trying to find an angle between the radii so we can use law of cosines which states that

$16 = \sqrt{10 {}^{2} + 10 {}^{2} - 2(100) \times \cos(o) }$

This isn't the standard formula, it's for this problem

$16 = \sqrt{200 - 200 \times \cos(o) }$

$16 = \sqrt{200 - 200 \cos(o) }$

$256 = 200 - 200 \cos(o)$

$56 = - 200 \cos(o)$

$- \frac{7}{25} = \cos(o)$

$\cos {}^{ - 1} ( - \frac{7}{25} ) = \cos {}^{ - 1} ( \cos(o) )$

$106.26 = o$

So we found our angle of rotation, which is 106.26

Now, we do the sector formula.

$\frac{106.26}{360} (100)\pi$

$\frac{10626}{360} \pi$

is the area of sector.

Now let find the area of triangle, we can use Heron formula,

The area of a triangle is

$\sqrt{s(s - a)(s - b)(s - c)}$

where s is the semi-perimeter.

To find s, add all the side lengths up, 10,10,16 and divide it by 2.

Which is

$\frac{36}{2} = 18$

$\sqrt{18(18 - 10)(18 - 10)(18 - 16)}$

$\sqrt{18(8)(8)(2)}$

$\sqrt{(36)(64)}$

$6 \times 8 = 48$

So our area of the triangle is 48. Now, to find the shaded area subtract the main area,( the sector of the circle) by the area of the triangle so we get

$\frac{10626}{360} - 48$

Which is an approximate or

44.73

6 0

2 years ago

Which Greek mathematician is known as the Father of Geometry? A. Pythagoras B. Thales C. Euclid D. Hippocrates

Brrunno [24]

Answer: C (Euclid is known as the Father of Geometry)

8 0

3 years ago

NEED ANSWER FAST! what is the value of X?

vredina [299]

Angles on one side of a straight line always add to 180°.

Look at the picture.

a = 180° - 134° = 46°
b = 180° - 130° = 50°

In a triangle, the three interior angles always add to 180°.

a + b + c = 180°

c = 180° - (46° + 50°) = 180° - 96° = 84°

x° = 180° - 84° = 96°


We can see that:
x = a + b

6 0

3 years ago

I need answers 5 through 10.please number them

Alexxandr [17]

You don't need me to give you all six of them, because they're
all essentially the same problem. So I'll give you two, and lead
you close to the answer of another one, and by then, you should
be able to handle them on your own.

5). y/2 > 0 .

What can you do to the left side to get 'y' all alone ?
Multiply the left side by 2 .
But you always have to do the same thing to both sides.

Multiply each side by 2: y > 0 .
_____________________________

6). -4 < r/5

What can you do to the right side to get 'r' all alone ?
Multiply the right side by 5 .
But you always have to do the same thing to both sides.

Multiply each side by 5: -20 < r
_______________________________

7). 5c < 10

What can you do to the left side to get 'c' all alone ?
Divide the left side by 5 .
But you always have to do the same thing to both sides.

Divide each side by 5: c < ____

Over to you, champ !

5 0

3 years ago

Help meeee pleaseeeeeWhat percent of 110 is 44​

Help meeee pleaseeeeeWhat percent of 110 is 44