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2 years ago

How many hours is 8 to 3 o'clock

Mathematics

2 answers:

julsineya [31]2 years ago

6 0

There will be 7 hours

sammy [17]2 years ago

4 0

8 to 12 is 4 hours and 12 to 3 is 3 hours. So the total hours is 7 hours

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Five percent is the same as 1:20?

disa [49]

No, The answer is 120% and 0.5% = 0.05

Hope this helped!

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3 years ago

Whats the square root of 45

Nady [450]

Answer:

6.71

Step-by-step explanation:

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Round it.

6.71

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2 years ago

What is the inverse of the function F (X) equals 2X +1

Liono4ka [1.6K]

Answer: $f^{-1}(x)=\frac{x-1}{2}$

Step-by-step explanation:

To find the inverse of a function start by replacing f(x) with x and replace the original x with y.

$f(x)=2x+1\\x=2y+1$

Now solve for y

$x=2y+1\\x-1=2y+1-1\\x-1=2y\\\frac{x-1}{2} =\frac{2y}{2}\\\frac{x-1}{2} =y$

Finally, replace y with the inverse of f(x), $f^{-1}(x)$

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1 year ago

A right rectangular prism has a length of 9, a width of 4, and a height of 5. How many unit cubes can fit in the prism?

Serjik [45]

Answer:

The answer is 54 cubes.

Step-by-step explanation:

5 0

2 years ago

-X² + 5x - 6 = 2<br> Using the quadratic formula

Ivenika [448]

$-x^2+5x-6=2\\-x^2+5x-6-2=0\\-x^2+5x-8=0\\$

↝ Form into $ax^2+bx+c = 0$ where a > 0 (Optional)

$x^2-5x+8=0$ ↝ Multiply -1 for both sides.

↝ Then proceed with the Quadratic Formula.

x = [-b ± (√b²-4ac)]/2a ↝ Quadratic Formula

$x=\frac{-(-5)+-\sqrt{(-5)^2-4(1)(8)}}{2(1)}\\x=\frac{5+-\sqrt{25-32}}{2}\\$

↝ As you can see that inside the square root, the numbers cannot be negative. Therefore, the solutions are imaginary.

↝ Solution with Real Numbers System ↝ There are no real solutions.

↝ Solution with Complex Number System ↝

$x=\frac{5+-\sqrt{25-32}}{2}\\x=\frac{5+-\sqrt{-7}}{2}\\x=\frac{5+-\sqrt{7}i }{2}$

Therefore, the answer for Complex Number System is (5±√7i)/2

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2 years ago