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aliya0001 [1]
3 years ago
14

Okay, this is the third time I've asked this question on Brainly and I NEED a REAL Answer. The question is in the picture. I set

it at 25 points.

Mathematics
2 answers:
Bumek [7]3 years ago
7 0
I’m not sure what the question is looking for
evablogger [386]3 years ago
5 0

Answer:

is the picture not working i only see a black screen but comment it so i can answer

\

Step-by-step explanation:

You might be interested in
If x = 3, calculate the value of: x3 - x
Sergeeva-Olga [200]
You have to fill in 3 for x so it woul look like 3x3-3 and that would be 6.
8 0
3 years ago
Read 2 more answers
The question is given in the picture.
lorasvet [3.4K]
This is a really interesting question! One thing that we can notice right off the bat is that each of the circles has the same amount of area swept out of it - namely, the amount swept out by one of the interior angles of the hexagon. Let’s call that interior angle θ. We know that the amount of area swept out in the circle is proportional to the angle swept out - mathematically

θ/360 = a/A

Where “a” is the area swept out by θ, and A is the area of the whole circle, which, given a radius of r, is πr^2. Substituting this in, we have

θ/360 = a/(πr^2)

Solving for “a”:

a = π(r^2)θ/360

So, we have the formula for the area of one of those sectors; all we need to do now is find θ and multiply our result by 6, since we have 6 circles. We can preempt this but just multiplying both sides of the formula by 6:

6a = 6π(r^2)θ/360

Which simplifies to

6a = π(r^2)θ/60

Now, how do we find θ? Let’s look first at the exterior angles of a hexagon. Imagine if you were taking a walk around a hexagon. At each corner, you turn some angle and keep walking. You make 6 turns in all, and in the end, you find yourself right back at the same place you started; you turned 360 degrees in total. On a regular hexagon, you’d turn by the same angle at each corner, which means that each of the six turns is 360/6 = 60 degrees. Since each interior and exterior angle pair up to make 180 degrees (a straight line), we can simply subtract that exterior angle from 180 to find θ, obtaining an angle of 180 - 60 = 120 degrees.

Finally, we substitute θ into our earlier formula to find that

6a = π(r^2)120/60

Or

6a = 2πr^2

So, the area of all six sectors is 2πr^2, or the area of two circles with radii r.
5 0
3 years ago
1. Four bags of chips cost $6. 1. What is the cost per bag? 2. At this rate, how much will 7 bags of chips cost?​
77julia77 [94]

Answer:

$1.50  dollars per bag and at that rate it would be $7.50 for 6 bags of chips

Step-by-step explanation:

8 0
2 years ago
8x + y = -39<br> 2x - 5y = 27<br> Solve the system by elimination
Ahat [919]

Answer:

(-4, -7)

Step-by-step explanation:

21y=-147

y=-7

2x-5x(-7)=27

x=-4

5 0
3 years ago
Brennan purchased an almond tart costing $18.56. He gave the cashier $19.55. How much change did the cashier give back to Brenna
11111nata11111 [884]

Answer:

0.99.

Step-by-step explanation:

7 0
3 years ago
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