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2 years ago

Y = f(x) = -1^x find f(x) when x=3

Mathematics

2 answers:

irina1246 [14]2 years ago

5 0

yes, for plato users the answer is

-1!!

Anna [14]2 years ago

4 0

Hello :
<span>f(x) = (-1)^x
if x=3
f(3) = (-1)^3 = -1</span>

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A bag contains 4 blue marbles, 6 red marbles, 3 yellow marbles, and 5 black marbles. What is the probability that you choose two

Ronch [10]

Answer:

.065

Step-by-step explanation:

The total number of marbles is

4 blue marbles+ 6 red marbles+ 3 yellow marbles+5 black marbles=18

P(1st black) = Black/total = 5/18

You keep the marble

The total number of marbles is

4 blue marbles+ 6 red marbles+ 3 yellow marbles+4 black marbles=17

P(2st black) = Black/total = 4/17

Multiply the probabilities together

P(black,black)= 5/18 * 4/17 =10/153=.065359477 =.065

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2 years ago

When a number x is multiplied by 4, the result is 2/5. What is t he value of x

PIT_PIT [208]

The equation:

$x\cdot4=\dfrac{2}{5}\ \ \ \ |\text{divide both sides by 4}\\\\x=\dfrac{2}{5}:4\\\\x=\dfrac{2}{5}\cdot\dfrac{1}{4}\\\\x=\dfrac{1}{5}\cdot\dfrac{1}{2}\\\\\boxed{x=\dfrac{1}{10}}$

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2 years ago

If x represents one of the equal sides of the triangle, then which equation can be used to solve the problem?

Maksim231197 [3]

X + 2(x + 4) = 32
3x + 8 = 32
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x = 8

The lengths of the sides are 8, 12 and 12 (answer),

8 0

2 years ago

PLZ PLZ❓❓❓HELP

Liula [17]

Answer:

22.36

Step-by-step explanation:

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12 *.43= 5.16

5 0

2 years ago

J=UC solve for c please

mart [117]

»»————-　★　————-««

I believe your answer is:

$c=\frac{j}{u}; u\neq 0$

»»————-　★　————-««

Here’s why:

⸻⸻⸻⸻

$\boxed{\text{Solving for 'c'...}}}\\\\j = uc \\------------\\\rightarrow \frac{j=uc}{u}\\\\\rightarrow \frac{j}{u}=c\\\\\rightarrow \boxed{c=\frac{j}{u}}}; u\neq 0$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

8 0

2 years ago