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2 years ago

D. 20.0 Math question no Guessing and Please show work

Mathematics

1 answer:

Vikki [24]2 years ago

6 0

Pythagoras theorem
${a}^{2} = {b}^{2} + {c}^{2}$
Now in your case
${b}^{2} = {9}^{2} + {12}^{2}$
$\sqrt{b}$

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Can someone quickly help me solve this ?!

Rainbow [258]

Answer: 8

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2 years ago

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During a certain day, a worker made 81 parts. He usually does 45 parts per day. What was the percent by which he increased the n

SIZIF [17.4K]

45/81 = .55
Turn this into a percent: .55 x 100
55 percent
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2 years ago

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HELP Me NOW NOW NOW NOW

german

Answer:

The answer is 9/16.

Step-by-step explanation:

Using Indices Law,

${( \frac{a}{b}) }^{n} ⇒ \frac{ {a}^{n} }{ {b}^{n} }$

So for this question :

${ (\frac{3}{4}) }^{2}$

$= \frac{ {3}^{2} }{ {4}^{2} }$

$= \frac{3 \times 3}{4 \times 4}$

$= \frac{9}{16}$

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3 years ago

What does x+x+x+x+x-1+1+1+1= ?<br><br> (Giving this for 30 points)

77julia77 [94]

First, let's add all the x's.

x + x + x + x + x = 5x

5x - 1 + 1 + 1 + 1

Now, let's add together all the 1's that are being added (not the 1 that is being subtracted from 5x).

1 + 1 + 1 = 3

5x - 1 + 3

3 - 1 = 2

5x + 2

There's no way you can actually solve this unless you know the value of x; without x's value, this is as simplified as the expression is going to get.

Hope this helps!

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2 years ago

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Consider a simple example of moral hazard. Suppose that Woodrow goes into a casino to make one bet a day. The casino is very bas

Neko [114]

Answer:

The expected value of the safe bet equal $0

Step-by-step explanation:

$S=\left\{s_1,s_2,...,s_n\right\}$

is a finite numeric sample space and

$P(X=s_k)=p_k$ for k=1, 2,..., n

is its probability distribution, then the expected value of the distribution is defined as

$E(X)=s_1P(X=s_1)+s_2P(X=s_2)+...+s_nP(X=s_n)X)$

What is the expected value of the safe bet?

In the safe bet we have only two possible outcomes: head or tail. Woodrow wins $100 with head and “wins” $-100 with tail So the sample space of incomes in one bet is

S = {100,-100}

Since the coin is supposed to be fair,

P(X=100)=0.5

P(X=-100)=0.5

and the expected value is

E(X) = 100*0.5 - 100*0.5 = 0

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3 years ago