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Makovka662 [10]
3 years ago
13

What is the area of a circle that has a diameter of 18"?

Mathematics
2 answers:
lubasha [3.4K]3 years ago
7 0
Since the formula for the area of a circle is Pi x r squared, the area would be 81 x Pi (you teacher may want you to use Pi as 3.14 or put it in your calculator).
Xelga [282]3 years ago
6 0
R=9 but the sun is 254.469
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a hexagon inscribed in a circle has three consecutive sides each of length 3 and three consecutive sides each of length 5. the c
allochka39001 [22]

According to given conditions, m+n is equal to 409.

Consider the diagram below.

In the hexagon ABCDEF, let

AB = BC = CD = 3;

DE = EF = FA = 5;

Arc BAF is equal to one-third of the circle's circumference.

Hence, ∠BCF = ∠BEF = 60°;

Similarly, ∠CBE = ∠CFE = 60°;

Let the point of intersection of BE and CF be P, BE and AD be Q and CF and AD be R.

∴ Δ EFP and Δ BCP are equilateral, and so Δ PQR is also equilateral.

Also, ∠ BAD and ∠ BED subtend the same arc and so do ∠ ABE and ∠ ADE.

∴ Δ ABQ is similar to Δ EDQ

\frac{AQ}{EQ}  = \frac{BQ}{DQ} = \frac{AB}{ED} = \frac{3}{5}

Also,

\frac{\frac{AD - PQ}{2} }{PQ + 5} = \frac{3}{5}  

and \frac{3 - PQ}{\frac{AD + PQ}{2} }  = \frac{3}{5}

On solving these simultaneous equations, we get AD = 360/49

∴ m + n = 409.

To learn more about similarity of triangles, refer to this link:

brainly.com/question/25882965

#SPJ4

4 0
1 year ago
How would you write 6 × 6 × 6 × 6 as an exponential expression?
stepan [7]
The answer is 6⁴.

Exponent is the number of times the factor is being multiplied. For example:
x * x = x²
x * x * x = x³
x * x * x * x = x⁴
....
So: 
6 * 6 * 6 *6 = 6⁴
8 0
3 years ago
Zar Company paid employee wages on and through Friday, January 26, and the next payroll will be paid in February. Employees work
enyata [817]

Answer:

Wages expense Dr ($900 × 3 days) $2,700

    To wages payable $2,700

(being wages expense is recorded)

Step-by-step explanation:

The adjusting entry is as follows

Wages expense Dr ($900 × 3 days) $2,700

    To wages payable $2,700

(being wages expense is recorded)

Here the wages expense is debited as it increased the expense and credited the wages payable as it also increased the liability

Since on Jan 26, it is friday so the remaining days would be 3

8 0
3 years ago
Two intersecting lines lie in two planes.<br><br> A. True<br> B. False
Lady_Fox [76]
Intersecting lines can be lying in a plane. An example is the Cartesian coordinate system where systems of equations can be defined by their intesecting points by plotting the equations in the plane coordinate system. In this case, the answer to this problem is B. False
5 0
3 years ago
Read 2 more answers
Write the expression for the sequence of operations described below. Double q, multiply the result by p, then add what you have
sweet-ann [11.9K]

Answer:

2qp+r

Step-by-step explanation:

Double q (2q)

Multiply that by p (2qp)

Add that to r (2qp+r)

7 0
3 years ago
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