3 years ago

The verbal

Mathematics

1 answer:

crimeas [40]3 years ago

8 0

Answer:

Good hand writing. What a joke

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I really gave him a piece of my mind

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A 4. What is the measurement of this angle? • 130 • 120 • 140 • 100

Whitepunk [10]

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120 deg

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Solve the equation, and check your solution. -3/5n = -9

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2 years ago

Among 9 electrical components exactly one is known not to function properly. if 4 components are randomly selected, find the pro

seraphim [82]

Answer:

0.4444

Step-by-step explanation:

Use the following property to ease the calculation:

P(At least one)=1-P(None)

Total number of electrical components: 9

Number that does not function well :1

Number that functions well : 8

We have $^8C_4=70$ ways to to choose 4 good components from 8.

We have $^9C_4=126$ ways to choose 4 components from a total of 9.

If all function properly then none is bad, we $^1C_0=1$ way to do this.

P(At least one)= $1-\frac{^8C_4*^1C_0}{^9C_4}$

P(At least one)= $1-\frac{70*1}{126}$

P(At least one)=0.4444

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2 years ago

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