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Brums [2.3K]
3 years ago
10

The area of a circle is 4​ pi square kilometers. what is the radius?

Mathematics
1 answer:
Rasek [7]3 years ago
6 0
Can you type that again?
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Before a renovation, a movie theater had 134 seats. After the renovation, the theater has 188 seats. What is the approximate per
noname [10]

Answer: 40.3%

Step-by-step explanation:

now-before = seats added

188-134 = 54

54/134*100=approx. 49.29% which is rounded to 40.3%

3 0
2 years ago
Helppppppppp pleaseeee Someoneeeee pleaseeee I neeed
Stella [2.4K]

Answer:

The minimum value of f(x) is 2

Step-by-step explanation:

  • To find the minimum value of the function f(x), you should find the value of x which has the minimum value of y, so we will use the differentiation to find it
  • Differentiate f(x) with respect to x and equate it by 0 to find x, then substitute the value of x in f(x) to find the minimum value of f(x)

∵ f(x) = 2x² - 4x + 4

→ Find f'(x)

∵ f'(x) = 2(2)x^{2-1} - 4(1)x^{1-1} + 0

∴ f'(x) = 4x - 4

→ Equate f'(x) by 0

∵ f'(x) = 0

∴ 4x - 4 = 0

→ Add 4 to both sides

∵ 4x - 4 + 4 = 0 + 4

∴ 4x = 4

→ Divide both sides by 4

∴ x = 1

→ The minimum value is f(1)

∵ f(1) = 2(1)² - 4(1) + 4

∴ f(1) = 2 - 4 + 4

∴ f(1) = 2

∴ The minimum value of f(x) is 2

7 0
3 years ago
GENIUS OR ANYONE HELP ME PLZ PLZ PLZ!!!!
sukhopar [10]

Answer:

\frac{16}{4}, \frac{22}{7},\sqrt{5}, \sqrt{3}

Step-by-step explanation:

i got it right

8 0
3 years ago
Read 2 more answers
True or False, Explain your choice...<br><br>No irrational number are whole number​
bezimeni [28]
True… irrational numbers focus more around square roots that cant be simplified into a single number, or symbols like pi. while not all rational numbers are whole, an irrational number can never be whole.
4 0
3 years ago
F s(x) = 2 – x2 and t(x) = 3x, which value is equivalent to (s*t)(-7)
Natalija [7]
S(x) = 2 - x²

t(x) = 3x

s(t(x)) = st(x)

s(t(x)) :

s(3x)

So in s(x) = 2 - x²,  to solve for s(3x) we replace x with 3x

s(x) = 2 - x²

s(3x) = 2 - (3x)²

          =  2 - 9x²

st(x) = 2 - 9x²

st(-7) = 2 - 9*(-7)(-7)

         = 2 - 9*49 = 2 - 441 = -439

st(-7) = -439
5 0
3 years ago
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