2 years ago

???? ??? Answer ....

Mathematics

1 answer:

devlian [24]2 years ago

3 0

Answer would be C because the cost is independent

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A circle has a center at (4, -7) and a radius of 4 units.

elena-s [515]

Answer:

The third one

Step-by-step explanation:

The equation for a circle is $(x-h)^{2} +(y-k)^{2} =r^{2}$

(h, k) is the center

5 0

2 years ago

A farmer raises cows and chickens. The farmer has a total of 25 animals. One day he counts the legs of all of his animals and co

KengaRu [80]

Answer:

Step-by-step explanation:

x + y = 25 ...........................(1)

{4x + 2y =64} / 2 divide the equation by 2

2x + y = 32 ........................(3)

Step Two

subtract (1) from (3)

2x + y = 32

x + y = 25

x = 7

Therefore from equation 1 we get x + y = 25

but x = 7

7 + y = 25 Subtract 7 from both sides.

y = 25 - 7

y = 18

Check

4*x + 2*y = 64

4*7 + 2*18 =? 64

28 + 36 = ? 64

64 = 64

The checks out to be the right answer.

6 0

2 years ago

Please help someone

ioda

Idek no it sorry .......

3 0

2 years ago

Use the discriminant to determine the number of real solutions to the quadratic equation.

Naily [24]

Answer:

Step-by-step explanation:

Use discramnt formula

$b {}^{2} - 4ac$

Where 6 is a, 11 is b and 9 is c

$11 {}^{2} - 4(6)(9)$

$121 - 216 = - 95$

Since the discramnt is negative, there are no real solutions and it will only produce imaginary solutions

3 0

2 years ago

Dave designed a circular pool with a diameter of 24 meters. What is the area of the bottom of the pool round the nearest tenth

kolezko [41]

Answer:

450 m²

Step-by-step explanation:

Area of a circle: $\pi r^{2}$

r is radius and we need to divide the diameter value by 2 to obtain the radius

= 24 / 2 = 12m

Area of a circle = $\pi * 12^{2}$

= 452.57

≈ 450 m²

4 0

2 years ago