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xenn [34]
3 years ago
11

The diameter of a circle 8 inches whats is the area?

Mathematics
2 answers:
pshichka [43]3 years ago
6 0

Answer:

25.12inch^2

Step-by-step explanation:

Area= pi r^2 = 3.14 x 8 =25.12inch^2

Elanso [62]3 years ago
3 0
I think it is 16•π because π•4^2 is 16π so the area is 16π.
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Susan and Mark are standing at different places on a beach and watching a bird. The angles of elevation they make are 20º and 50
Mandarinka [93]

Answer:

The bird is 2.44km high

Step-by-step explanation:

Hello,

To solve this question, we need to understand how they are and we can only get this with a correct pictorial diagram.

See attached document for better understanding.

From the first diagram, we understand that the bird is between them and also on top of them.

Assuming Susan, Mark and the bird all form a triangle at each other and the bird at the top, we can divide the the triangle into two equal parts.

But before then, we should know that sum of angles in a triangle is equal to 180°

Therefore,

20° + 50° + b° = 180

70° + b = 180

b = 180° - 70°

b = 110°

Dividing angle b into two equal parts = 55° on each side.

See the last attached document for better illustration.

Using SOHCAHTOA, we can find the adjacent of the triangle which corresponds to the height of the bird.

We have opposite = 3.4km and we're looking for adjacent. We can use tangent of the angle to find the adjacent.

Tanθ = opposite / adjacent

Tan 55° = 3.5 / adj

Adjacent = 3.5 / tan55

Adjacent = 3.5 / 1.43

Adjacent = 2.44km

The height of the bird is 2.44km

7 0
3 years ago
What is the measure of ACE in the diagram below?<br><br> A. 46<br> B. 104<br> C. 29<br> D. 58
beks73 [17]

Answer:

C

Step-by-step explanation:

The secant- secant angle ACE is half the difference of the measures of the intercepted arcs, that is

∠ ACE = \frac{1}{2} (AE - BD ) = \frac{1}{2} (104 - 46)° = \frac{1}{2} × 58° = 29° → C

3 0
3 years ago
Read 2 more answers
Which of the following is a good way to quickly determine whether 3⁄12 and ¼ are equal? A. Inverse multiplication B. Reciprocal
IRINA_888 [86]

D. , this is a good way because this way you can easily multiply and then you'll see your answer right in front of you.


** This is an opinionated question so you don't have to listen to my answer but please rate my answer. Thanks!

4 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Csqrt%7B-2%7D" id="TexFormula1" title="\sqrt{-2}" alt="\sqrt{-2}" align="absmiddle" class="l
kodGreya [7K]

Answer:

finding the square root of an negative number is not possible

5 0
3 years ago
What is the converse of the statement if p,then q
WINSTONCH [101]

Answer:

If q, then p

Step-by-step explanation:

The given conditional statement is "If p, then q"

We want to find the converse of this conditional statement.

The converse is formed by switching the hypothesis (p) and the conclusion (q).

Therefore the converse of the given conditional is "If q, then p"

4 0
3 years ago
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