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Over [174]
3 years ago
12

Simplify to create a equivalent expression.

Mathematics
2 answers:
Ratling [72]3 years ago
7 0

Answer:

\boxed{\bold{66k+9}}

Explanation:

Expand \bold{5\left(10k+1\right): \ 50k+5}

= \bold{50k+5+2\left(2+8k\right)}

Expand \bold{2\left(2+8k\right): \ 4+16k}

= \bold{50k+5+4+16k}

Simplify \bold{50k+5+4+16k: \ 66k+9}

= \bold{66k+9}

Mordancy.

zhenek [66]3 years ago
6 0

Answer:

66k + 9

Step-by-step explanation:

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A machine making computer chips isn't working correctly, and 5% of the computer chips it makes are defective. If an inspector ch
Rainbow [258]

Answer:

0.25% probability that they are both defective

Step-by-step explanation:

For each computer chip, there are only two possible outcomes. Either they are defective, or they are not. The probability of a computer chip being defective is independent of other chips. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

5% of the computer chips it makes are defective.

This means that p = 0.05

If an inspector chooses two computer chips randomly (meaning they are independent from each other), what is the probability that they are both defective?

This is P(X = 2) when n = 2. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{2,2}.(0.05)^{2}.(0.95)^{0} = 0.0025

0.25% probability that they are both defective

4 0
3 years ago
A rectangle has a total area of 1116 square feet. If the length of the rectangle is 12 ft, what is the width of the rectangle?
Pani-rosa [81]

the width of the rectangle is 93

5 0
3 years ago
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HURRY PLS<br><br> what number is 0.01 more than 253,498 ?
Arisa [49]

Answer:

253,498.1?

Step-by-step explanation:

7 0
3 years ago
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The moon is about 240,000 miles from earth what is the distance written as a whole number multiplied by the power of 10
algol [13]
24 times 10 with the exponent as 4
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Sean's grandfather is three years older than four times Sean's age. If Sean's grandfather is 63, which equation can be used to f
Elodia [21]
60 divided by 4.
EXPLANATION:
If his grandfathers age is 3 more than whatever 4 times seans age is. we can do 63 - 3. which is 60.
Then you fond seans age. 60 divided by 4 is the equation to find seans age.
sry its a bad explanation but I hope the answer helps!
5 0
2 years ago
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