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Umnica [9.8K]
3 years ago
11

Find the center and the radius of the circle with the equation:

Mathematics
1 answer:
zmey [24]3 years ago
3 0

Answer:

D

Step-by-step explanation:

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the height of a right angled triangle is 7cm long and hypotenuse is 25cm long.what will be the area of the triangle​
photoshop1234 [79]
Since you’re already given one of the sides of the triangles as well as the triangle’s hypotenuse, you’ll want to find the third side to find the area.

To find the third side length, we’ll use the Pythagorean Theorem:

a^2 + b^2 = c^2

“a” and “b” can be used interchangeably, so we can substitute the known side length of 7 cm into “a”. 25 cm substitutes for “c” since it’s the hypotenuse.

(25)^2 - (7)^2 = c^2

c = 24

Area of triangle = (1/2)bh, where “b” and “h” are interchangeable.

Area of triangle = (1/2)(24)(7) = 84 cm^2
3 0
2 years ago
A rectangular lawn has a circumference of 86 meters. one of the sides is 20 meters. how big an area does the lawn have?
inysia [295]

Answer:

0

Step-by-step explanation:

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6 0
3 years ago
David can finish painting the room in six hours and his elder brother Anthony can finish it in four hours if both brothers paint
lbvjy [14]

Answer:

2.4 hours

Step-by-step explanation:

David's time = 6 hours

Anthony's time = 4 hours

the combined time is given by the following formula

1/ (david's time) + 1/(anthony's time) = 1/total time

1/6 + 1/4 = 1/Total

4/24 + 6/24 = 1/Total

10/24 = 1/ total   (taking reciprocal of both sides)

24/10 = total

total time = 24/10 = 2.4 hours

5 0
3 years ago
What is the sum of the geometric series in which A1 = 4, r = 3, and An = 324?
koban [17]
The answer would be 328
3 0
3 years ago
These points are linear.
posledela

Answer:

3

Step-by-step explanation:

Select an ordered pair: (2, 7)

Select another ordered pair: (6, 19)

slope = (difference in y)/(difference in x)

slope = (19 - 7)(6 - 2)

slope = 12/4

slope = 3

4 0
2 years ago
Read 2 more answers
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