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3 years ago

What is the length of BC? Round to the nearest tenth

Mathematics

1 answer:

Degger [83]3 years ago

7 0

Answer:

9.9

use the special triangle formula or use cosine to find BC

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QUICK<br><br> Find the area of the shaded region. Use 3.14 for pi.

ivolga24 [154]

Answer:

The shaded region is $353.25m^2$ .

Step-by-step explanation:

The area of a circle is defined by the multiplication of the square of its radius, or half its diameter, by pi, or simply $A=\pi r^2$ .

15m is the radius of the large circle, and also the diameter of the smaller circles.

The area of the shaded region will be the subtraction of the area of the two smaller circles from the area of the larger circle.

As such:

$A=\pi(15)^{2}-2(\pi(\frac{15}{2} )^{2})\\\\A=(3.14)(15)^{2}-2(3.14)(\frac{15}{2} )^{2}\\A=706.5-353.25\\A=353.25$

4 0

3 years ago

Read 2 more answers

The sets of numbers 3, 4, 5 and 5, 12, 13 are examples

Wewaii [24]

Answer:

8, 15, 17 — yes
15, 20, 25 — yes
20, 48, 52 — yes
2, 9, 11 — no
39, 80, 89 — yes

Step-by-step explanation:

The squares of the three numbers in each of the given triples are listed. When the sum of the first two numbers is equal to the third, the set of numbers in the triple is a Pythagorean triple.

{64, 225, 289}, yes

{225, 400, 625}, yes — a 3,4,5 triple multiplied by 5

{400, 2304, 2704}, yes — a 5,12,13 triple multiplied by 4

{4, 81, 121}, no*

{1521, 6400, 7921}, yes.

___

* the smallest set of integers that is a Pythagorean triple is {3, 4, 5}. The number 2 in this group tells you this cannot be a PT.

8 0

3 years ago

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Help, brainliest to whoever answers

Arada [10]

Answer:

Step-by-step explanation:

y=x+4

7 0

3 years ago

Need help asap. Simplify the expression 6/c+4/c^2 show work

Zina [86]

By taking a common denominator, we can find out that the simplified expression of the given expression is $\frac{6c+4}{c^{2} }$ .

The given expression is -

$\frac{6}{c}+\frac{4}{c^{2} }$ ---- (1)

We have to simplify the expression.

From equation (1), we have the given expression as -

$\frac{6}{c}+\frac{4}{c^{2} }$

Establishing common denominator $c^{2}$ , we have

$\frac{6c}{c^{2} }+\frac{4}{c^{2}}$

Combining the numerator and common denominator, we have

$\frac{6c+4}{c^{2} }$

Thus, the simplified expression of the given expression is $\frac{6c+4}{c^{2} }$ which is obtained by taking a common denominator.

To learn more about simplified expression visit brainly.com/question/22860327

#SPJ1

7 0

1 year ago

How do you do this please

TEA [102]

-12.166 divided by -1.54 hm I think -11.122 Im sorry i never learned this...

3 0

3 years ago

Read 2 more answers