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Bad White [126]
3 years ago
12

The radius of a circle is 17.5. Find the exact area of the circle.

Mathematics
1 answer:
guajiro [1.7K]3 years ago
4 0
If the radius is 17.5 I believe that the area is 962.11.
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If the given values in a right triangle are cos A =
Vlad1618 [11]
See the picture attached to better understand the problem

we know that
in the right triangle ABC
cos A=AC/AB
cos A=1/3
so
1/3=AC/AB----->AB=3*AC-----> square----> AB²=9*AC²---->  equation 1

applying the Pythagoras Theorem
BC²+AC²=AB²-----> 2²+AC²=AB²---> 4+AC²=AB²----> equation 2

substitute equation 1 in equation 2
4+AC²=9*AC²----> 8*AC²=4----> AC²=1/2----> AC=√2/2
so
AB²=9*AC²----> AB²=9*(√2/2)²----> AB=(3√2)/2

the answer is
the hypotenuse is (3√2)/2

5 0
3 years ago
A=10^x, b=10^yanda^y^*b*x=100then2xy=?​
sergejj [24]

Answer:

Here is your answer

Step-by-step explanation:

xy = 1

Hope you like it : )

7 0
2 years ago
On a Saturday, a library checked out 52 books. If 24 of the books were fiction , what is the ratio if non-fiction books to ficti
vekshin1
I would guess 28 to 24
4 0
2 years ago
Read 2 more answers
arius flipped a coin 500 times and it landed heads up 300 times. What is the relative frequency of the coin landing heads up bas
guajiro [1.7K]

Answer:

3/5

Step-by-step explanation:

500 time number of coin flipped =500

pro.of relative freq.of head =300

relative frequency =300/500

=3/5

3 0
3 years ago
Find the area of triangle ABC ​
Stells [14]
Area : 14
-you can count the squares in the coordinate plane near the triangle shape

-find the height of the triangle
height : 4

-find the base of the triangle
base: 7

use the triangle formula
1/2bh
and your answer will be 14
( sorry if incorrect, I’m pretty sure it is! )
7 0
3 years ago
Read 2 more answers
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