3 years ago

What is 99.957 rounded nearest hundredth

Mathematics

2 answers:

MArishka [77]3 years ago

8 0

99.96 Or 9.960 If you prefer

Romashka [77]3 years ago

8 0

The answer would be 99.96.

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What are the exact solutions of x2 = 5x + 2? (1 point)

bazaltina [42]

Answer:

A. x equals 5 plus or minus the square root of thirty-three all over 2

Step-by-step explanation:

Let's move all the terms to one side:

$x^2=5x+2$

$x^2-5x-2=0$

Now, we want to use the quadratic formula, which states that for a quadratic equation of the form $ax^2+bx+c=0$ , the roots can be found with the equation: $x=\frac{-b+\sqrt{b^2-4ac} }{2a}$ or $x=\frac{-b-\sqrt{b^2-4ac} }{2a}$ .

Here, a = 1, b = -5, and c = -2, so plug these in:

$x=\frac{-(-5)+\sqrt{(-5)^2-4(1)(-2)} }{2(1)}=x=\frac{5+\sqrt{25+8} }{2}=\frac{5+\sqrt{33} }{2}$

$x=\frac{-(-5)-\sqrt{(-5)^2-4(1)(-2)} }{2(1)}=x=\frac{5-\sqrt{25+8} }{2}=\frac{5-\sqrt{33} }{2}$

Thus, the answer is A.

Hope this helps!

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son4ous [18]

The answers

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3. O

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Given that f(x) = 2x + 5 and g(x) = x − 7, solve for f(g(x)) when x = −3.

WITCHER [35]

G(-3) = -3-7 = -10;
f(g(-3))=f(-10) = 2 x (-10) + 5 = - 20 + 5 = -15.

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I hope this helps you

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Answer:

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