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rosijanka [135]
3 years ago
13

Solve for x: 2x +3=9

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
7 0

Answer:

x=3

Step-by-step explanation:

2(3)+3=9

6+3=9

9=9

pishuonlain [190]3 years ago
4 0

Answer: x=3

<u>Subtract 3 from both sides</u>

<u></u>2x+3-3=9-3\\2x=6<u></u>

<u></u>

<u>Divide both sides by 2</u>

<u></u>2x/2=6/2\\x=3<u></u>

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5 + 17х + 9 = 2х 21x 14
babunello [35]

Answer:

simplify x=0 is the correct answer

3 0
3 years ago
If p = .8 and n = 50, then we can conclude that the sampling distribution of pˆ is approximately a normal distribution
FrozenT [24]

Answer:

Yes we can conclude.

Step-by-step explanation:

The sampling distribution of \hat{p} can be approximated as a Normal Distribution only if:

np and nq are both equal to or greater than 10. i.e.

  • np ≥ 10
  • nq ≥ 10

Both of these conditions must be met in order to approximate the sampling distribution of \hat{p} as Normal Distribution.

From the given data:

n = 50

p = 0.80

q = 1 - p = 1 - 0.80 = 0.20

np = 50(0.80) = 40

nq = 50(0.20) = 10

This  means the conditions that np and nq must be equal to or greater than 10 is being satisfied. So, we can conclude that the sampling distribution of pˆ is approximately a normal distribution

6 0
3 years ago
Assume the population of regulation basketball weights are normally distributed with a mean of 22 and a standard deviation of 1
ankoles [38]

Answer: 0.0228

Step-by-step explanation:

please check photo explanation

6 0
3 years ago
Why is ln natural logarithm?
klemol [59]
I think its because log e is ln so ln is a natural logarithm.
6 0
3 years ago
Read 2 more answers
A business bought 500 lamps for $10,000. They want to mark them up 25%. What is the retail price of each lamp?
zavuch27 [327]

Answer:

$25 a lamp

Step-by-step explanation:

First divide $10,000  by 500 lamps to find how much one of them cost

That is $20 a lamp so then multiply .25 *20 or 1/4 *20

you get 5 than add 20 +5=25

8 0
3 years ago
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