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3 years ago

barb ate six cheeseburgers in the last four months. How many do you perdict she will eat in two years?

Mathematics

1 answer:

hichkok12 [17]3 years ago

5 0

36 :))) 4 x 3 = 12... 6 x 3 = 18 x 2 = 36!!
Hope this helps!!

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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

Let e and f be the events that a family of n children has children of both sexes and has at most one boy, respectively. are e an

Alik [6]

C is the answer n equal 5

4 0

3 years ago

Help!!!!!!!!!!!!!!!!!!!!!!! please ty c:

Aleksandr [31]

Use the formula for the area of a triangle, and fill in the given information.
.. A = (1/2)*b*h
.. 36 in^2 = (1/2)*b*(9 in)
.. (72 in^2)/(9 in) = b . . . . . . . . multiply by 2, divide by 9 in
.. 8 in = b

The base is "none of the above", 8 inches.

_____
This question has a couple of problems:
.. 1) area is not measured in "inches"; it is measured in "square inches."
.. 2) ALL of the offered answer choices are INCORRECT.

4 0

3 years ago

1469.52 round to the nearest tenths place

Brrunno [24]

Answer:

1469.5

Step-by-step explanation:

when rounding to whichever place always look at the number to the right of the spot you are rounding to

since "2" is less than 5 we ignore all the numbers after the tenths place

hope this helps!

8 0

3 years ago

Read 2 more answers

Find the product of (3 + 7)) (1 - 1), and write the answer in standard form.

Mnenie [13.5K]

Answer:

10*0=0

Step-by-step explanation:

7 0

2 years ago