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Evgesh-ka [11]
3 years ago
10

What is the measure of ∠A?

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
6 0

Answer:

A = 60.07°

Step-by-step explanation:

Sin A = \frac{opposite}{hypotenuse}

Sin A = \frac{13}{15\\}

Sin A = 0.867

A = Sin⁻¹ 0.867

A = 60.07°

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loris [4]

Answer: a. Radius of circle = \sqrt{85}

b. The equation of this circle : (x-3)^2+(y-10)^2=85

Step-by-step explanation:

Given : Center of the circle = (3,10)

Circle is passing through (12,12).

a. To find the radius we apply distance formula (∵ Radius is the distance from center to any point ion the circle.)

Radius of circle = \sqrt{(12-3)^2+(12-10)^2}

Radius of circle = \sqrt{(9)^2+(2)^2}=\sqrt{81+4}=\sqrt{85}

i.e. Radius of circle = \sqrt{85}

b. Equation of a circle = (x-h)^2+(y-k)^2=r^2 , where (h,k)=Center and r=radius of the circle.

Put the values of (h,k)= (3,10) and r= \sqrt{85} , we get

(x-3)^2+(y-10)^2=(\sqrt{85})^2

(x-3)^2+(y-10)^2=85

∴  The equation of this circle :(x-3)^2+(y-10)^2=85

6 0
3 years ago
What is the percent decrease of $65.50 to $52.40
Ray Of Light [21]
<span>Divide 52.4 by 65.5 and multiply by 100. That is the percent of the 52.4 compared to 65.5.

</span>
5 0
3 years ago
Sandrena and her friends brought frozen yogurt for 55 cents per ounce.their total was $10.45.how many ounces did they buy?
lianna [129]
You would divide 10.45 by .55 and you would get 19 so 19 is your answer hope this helps
6 0
4 years ago
Please help me... I really need it.
MAXImum [283]

Answer:

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Step-by-step explanation:

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There are 20 chocolate candies in a bag.
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