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nataly862011 [7]

3 years ago

6

Remi has $8.40 in a jar that contains only nickels and dimes. There are 108 coins in the jar. How many nickles are in the jar

2 answers:

Ivanshal [37]2 years ago

5 0

There are 21 nickles

Anit [1.1K]2 years ago

4 0

There are 21 nickles in the jar.

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What are the prime fractorization of 240?

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Answer:

The prime factorization of 240, with exponents, is 24 × 3 × 5.

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3 years ago

Use the following for the next two questions. A large company is interested in investing in software designed to allow a compute

Dmitriy789 [7]

the answer is 66.43

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8 0

3 years ago

Which expression is equal to (−4x2−1)(2x2+3)?

Leya [2.2K]

Answer:

The first one:

−8x4−14x2−3

Step-by-step explanation:

(-4•2-1)(2•2+3)

-4•2 = -8

-8 - 1 = -9

(-9)(2•2+3)

2•2 = 4

4+3 = 7

(-9)(7) = -63

Now we find the one that equals -63:

-8•4-14•2-3

(-8•4)-14•2-3

-32-14•2-3

-32-(14•2)-3

-32-28-3

(-32-28)-3

-60-3

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BAM! THE ANSWER!

7 0

3 years ago

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A particular telephone number is used to receive both voice calls and fax messages. suppose that 20% of the incoming calls invol

Phoenix [80]

Answer:

0.1091 or 10.91%

Step-by-step explanation:

We have been given that a particular telephone number is used to receive both voice calls and fax messages. suppose that 20% of the incoming calls involve fax messages and consider a sample of 20 calls. We are asked to find the probability that exactly 6 of the calls involve a fax message.

We will use Bernoulli's trials to solve our given problem.

$P(X=x)=^nC_x\cdot P^x(1-P)^{n-x}$

$P(X=6)=^{20}C_6\cdot (0.20)^6(1-0.20)^{20-6}$

$P(X=6)=\frac{20!}{6!(20-6)!}\cdot (0.20)^6(0.80)^{14}$

$P(X=6)=\frac{20!}{6!(14)!}\cdot (0.000064)(0.04398046511104)$

$P(X=6)=38760\cdot (0.000064)(0.04398046511104)$

$P(X=6)=0.1090997009730$

$P(X=6)\approx 0.1091\\$

Therefore, the probability that exactly 6 of the calls involve a fax message would be approximately 0.1091 or 10.91%.

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3 years ago

In a game, four cards are labeled N, S, E, and W. Two tiles are numbered 1 and 2. Two

nikitadnepr [17]

Answer:1/16

Step-by-step explanation:

1/4x1/2x1/2

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