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2 years ago

PLZZZ NEED HELP!!!!!!

Mathematics

2 answers:

salantis [7]2 years ago

6 0

Hii. Im pretty sure B is the answer your looking for!

shtirl [24]2 years ago

5 0

B is the correct answer

You might be interested in

Roger grew 42 plants with 14 seed packets. With 16 seed packets, how many total plants can Roger have in his backyard?

Step2247 [10]

Answer:

48 Plants

Step-by-step explanation:

3 per packet

42 / 14 = 3

3 x 16 = 48

48 Plants

Hope this helped!

5 0

2 years ago

Read 2 more answers

2(x-3) +9=3(x+1) + x

Licemer1 [7]

Answer:

x = 0

Step-by-step explanation:

2(x - 3) + 9 = 3(x + 1) + x

2x - 6 + 9 = 3x + 3 + x

2x + 3 = 4x + 3

2x - 4x = 3 - 3

-2x = 0

2x = 0

x = 0/2

x = 0

5 0

3 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

A team from the high school went on a science-and-math quiz show. The science questions were worth 1 point and the math question

pentagon [3]

Answer:

for science the number of question is 3

And, for math it would be 5

Step-by-step explanation:

The computation is shown below:

Total questions answered is 8

And, earned points is 13

Let us assume the science question be x

And, the math question be y

Now the equation would be

x + 2y = 13

And the second equation would be

x + y = 8

Now solve the both equation

y = 5

So, the x = 3

hence, for science the number of question is 3

And, for math it would be 5

7 0

3 years ago

Can any three side lengths make a triangle? Explain your reasoning.

Cerrena [4.2K]

In most cases its possible, but if the 2 of the shortest side lengths are added together and the sum is greater than the 3rd side length, than making a triangle is not possible.

5 0

3 years ago