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Komok [63]
2 years ago
12

Calculate the area of a circle whose diameter is 7cm.​

Mathematics
1 answer:
Tema [17]2 years ago
4 0

Answer:

49π (or ~154) cm²

Step-by-step explanation:

A = area

A = πr²

r = radius

r = 7

A = π(7)²

= 49π

= 153.938040026 → 154 cm²

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Part B: In complete sentences, explain how a circle can be used to find the circumcenter of the triangle graphed below.
Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

<u><em>Part B:</em></u>

The center of the circumscribed circle around a triangle is equidistant from vertices of that triangle. To find the circumcenter need to draw at least two perpendicular bisectors to the sides of the given triangle. Point of intersect of them is center of the circumscribed circle.

<u><em>Part C:</em></u>

Coordinates of the midpoint of line BC ( y = - 1 ) are

( \frac{-6+2}{2} , \frac{-1-1}{2} ) = <em>( - 2 , - 1 )</em> and the equation of the line ⊥ to BC is <em>x = - 2</em>

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3 0
1 year ago
Write 600 as a product of it's primse factors
givi [52]

Answer:

2*2*2*3*5*5

or

2^3 *3* 5^2

Step-by-step explanation:

600  = 60*10

These are not prime so keep going, breaking 60 and 10 down

        = 6*10  * 5*2

6 and 10 are not prime so keep going ( 5 and 2 are prime)

    = 3*2  * 5*2  * 5*2

All of the numbers are prime, so we normally write them in order from smallest to largest

2*2*2*3*5*5

We can write with exponents

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8 0
2 years ago
How many cups = 3 5/8 gallons
WITCHER [35]

Answer: 58 cup

Step-by-step explanation:

Cause each gallant have 16 got and their 3 galla

on which is 48 than 5/8 of a gallon is 10 than the answer is 58 when I add it up

5 0
2 years ago
The two pictures are the questions and question five is what i need help with.
Mama L [17]

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Step-by-step explanation:

5 0
2 years ago
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IceJOKER [234]

Answer:

x= -4, -3, 3

Step-by-step explanation:

You must factor this equation.

Once you factor, you get (x+4)(x-3)(x+3)

Set this equal to 0 and solve.

You get -4,-3, and 3.

6 0
3 years ago
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