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2 years ago

Find the circumference of the circle. Use 3.14 for pi in the middle is 13

Mathematics

1 answer:

PilotLPTM [1.2K]2 years ago

6 0

Answer:

81.64 is the circumference

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Find the area of the shaded region.

taurus [48]

Answer:

$426.96 \: {km}^{2}$

Step-by-step explanation:

Area of the shaded region = Area of triangle with base 40 km and height 27 km - Area of circle with radius (12/2) 6 km.

$= \frac{1}{2} \times 40 \times 27 - 3.14 \times {(6)}^{2} \\ \\ = 20 \times 27 - 3.14 \times 36 \\ \\ = 540 - 113.04 \\ \\ = 426.96 \: {km}^{2}$

5 0

3 years ago

if angle 1 and angle 2 form a linear pair. if m<1=5x+9 and m<2=3x+11, find the measure of both angles

Ulleksa [173]

Answer: $m\angle 1=109\°\\m\angle 2=71\°$

Step-by-step explanation:

It is important to remember the definition of "Linear pair angles".

By definitiion "Linear pair angles" are two angles which are adjacents and supplementary.

Based on this, we know that the angles $\angle1$ and $\angle2$ are supplementary, which means that they add up to 180 degrees.

So, knowing that:

$m\angle 1=5x+9\\m\angle 2=3x+11$

We can write the following expression and solve for "x":

$(5x+9)+(3x+11)=180\\\\8x=180-20\\\\x=\frac{160}{8}\\\\x=20$

Therefore, substituting, we get that the measures of the angles $\angle1$ and $\angle2$ are:

$m\angle 1=5(20)+9=109\°\\\\\\m\angle 2=3(20)+11=71\°$

8 0

3 years ago

Find the area of a square if each side is 11 centimeters long

valentinak56 [21]

The area of that square would be 121 cm^2 because :

area of square = length(width)
= 11(11)
= 121
Then you also have to square the units(cm). So the final answer would be 121 cm^2 (the " ^ "represents the exponentiation)

7 0

3 years ago

Name the property of multiplication illustrated<br><br> 112 X 1 = 112

Nat2105 [25]

Answer:

Identity property

Step-by-step explanation: because the product of any number and one is that number

4 0

2 years ago

PLEASE HELP ME I WILL GIVE BRAINLIEST TO EVERY SINGLE ANSWER

zepelin [54]

Answer: I believe the answer you are looking for is 33 inches of rain.

Step-by-step explanation:

First you will divide 31 days by 14 days as 2 weeks is 14 days. Which will give you 2.2..... Now multiply your crazy decimal by 15 to get 33.214.... Now round that decimal to 33. There's your answer.

6 0

2 years ago

Read 2 more answers