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Evgesh-ka [11]
3 years ago
13

Someone help me please I don't get this :\

Mathematics
1 answer:
Mrac [35]3 years ago
7 0
F(x)'s domain is the extent of its x-values and the function x^2 + 3 extends to infinity and negative infinity so its domain is all real #s, 
f(x)'s range is its y-values and f(x) is only defined for and values above 3, so its range is y>= 3

f(x)^-1 is the function  (x-3)^(1/2) which is a square root function and x >= 3 because if x were to be 2 there would be a negative in the square root which means the y-value would be on the imaginary axis. 
the range is y>= 0 because the output of the square root function can never be negative in this context as it is not being multiplied by a negative on the front 
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Which number is greater: 1/4 or 5/4 ?
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Answer:

1/4 < 5/4

Step-by-step explanation:

Since the numbers have the same denominator, we compare the numerators

1<5

so 1/4 < 5/4

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3. Here is a diagram of a softball field:
Crank

a. Length of the fence around the field = perimeter of quarter circle = 892.7 ft.

b. The area of the outfield is about 39,584 sq. ft..

<h3>What is the Perimeter of a Quarter Circle?</h3>

Perimeter of circle = 2πr

Perimeter of a quarter circle = 2r + 1/4(2πr).

a. The length of the fence around the field = perimeter of the quarter circle fence

= 2r + 1/4(2πr).

r = 250 ft

Plug in the value

The length of the fence around the field = 2(250) + 1/4(2 × π × 250)

= 892.7 ft.

b. Size of the outfield = area of the full field (quarter circle) - area of the infield (cicle)

= 1/4(πR²) - πr²

R = radius of the full field = 250 ft

r = radius of the infield = 110/2 = 55 ft

Plug in the values

Size of the outfield = 1/4(π × 250²) - π × 55²

= 49,087 - 9,503

= 39,584 sq. ft.

Learn more about perimeter of quarter circle on:

brainly.com/question/15976233

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2 years ago
PLS SOLVE BRAILEST GIVEN
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\sqrt{-2x^2} = \sqrt{-1}  \cdot \sqrt{2}\cdot  \sqrt{x^2} = ix\sqrt2

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Answer:

B and C are correct

Step-by-step explanation:

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