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luda_lava [24]
4 years ago
7

Plz help me plzzzzzzzzz

Mathematics
2 answers:
Rudik [331]4 years ago
8 0

To find the area of a circle do pie (3.14), times the radius (9mm), squared.

3.14 times 9mm = 28.26mm

28.26mm squared = 798.67 repeated

mel-nik [20]4 years ago
3 0
Area of a circle = Pi x raduis^2? so the answer is 254.47mm^2
You might be interested in
In ΔBCD, the measure of ∠D=90°, BD = 8, CB = 17, and DC = 15. What ratio represents the sine of ∠B?
Lady_Fox [76]

Answer:

15:17

Step-by-step explanation:

Since the triangle has a right angle, we may find the length of the unknown side using the trigonometric notations SOH CAH TOA where

SOA stands for

Sin Ф = opposite side/hypotenuses side

Cosine Ф = adjacent side/hypotenuses side

Tangent Ф = opposite side/adjacent side

With respect to ∠B given that  ∠D=90°,

BD is the adjacent side

CB  is the hypotenuse side

and DC is the opposite side

Hence Sin B = 15/17

4 0
3 years ago
Can someone help me so i can do the rest like this on my own/
stepladder [879]
-- XY is a "diameter" of the circle. 

-- A diameter is any straight line inside the circle that goes
through the center and touches the curvy part twice.

-- Every diameter of the same circle has the same length.

-- The distance around every circle is (its diameter) multiplied by (pi).


-- Half of the diameter is called the "radius" of the circle.
A radius is any straight line inside the circle that goes between
the center and the curvy part.

-- The area of every circle is  (its radius, squared) times (pi).

-- 'Pi'  ( π )  is a number.  It's a decimal that keeps going forever
and never ends, so you can never write it exactly with numbers.

-- Pi is roughly 3.14 , and if you use 3.14 whenever you need pi,
then your answers will be about  0.05%  too small. 

That's very close.  When you turn in an answer that's only
0.05% wrong, the teacher knows that you know how to solve
the problem, and that's way more important than the answer.  

For the circle in your picture, the diameter is 17in, the radius
is 8.5in, and the area must be  (pi) (8.5)² square inches.
You can go ahead and work that out.
5 0
4 years ago
What is the answer to the distance formula of (-1,8), (7,-9)
Lady_Fox [76]

The answer is 25, it moves 8 points x and 17 points y.

7 0
3 years ago
Need help 10-14 idk and to do ??
Kryger [21]
10-14 is -4. Think of it as 14-10=4 but you turn the 4 into a negative number. Hope that answers
4 0
3 years ago
Find the change from £ 3 after spending£1.38 and £0.22
Virty [35]
The remainder will be;
3-(1.38+0.22)
=3-1.6
=1.4 pounds
5 0
4 years ago
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