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3 years ago

Help!! help on 33 please .

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

5 0

Description: They didn't distribute the 3 to both x and 5, so they just had 3x+5.
actual problem:
3(x+5)=3x+15
3x+15=3x+15
subtract 3x from both sides and end up with
15=15

Correct Answer: 15=15

You might be interested in

Y=4 over 5x-2 in standard form step by step

Yuri [45]

Standard form : Ax + By = C

y = 4/5x - 2....subtract 4/5 from both sides
-4/5x + y = -2 ....multiply both sides by -5
4x - 5y = 10 <== standard form

5 0

3 years ago

If you draw just one card for me standard deck what are the chances you will draw a non-prime number

bixtya [17]

Answer:

53.85%

Step-by-step explanation:

there are 24 prime cards in a deck

52-24=28

28 is the number of non prime cards in a deck of cards

then you do 28/52=53.85%

3 0

3 years ago

Assume that the Poisson distribution applies and that the mean number of hurricanes in a certain area is 5.8 per year. a. Find t

maw [93]

Answer:

a. 0.098

b. 4.41

c. Yes, it does.

Step-by-step explanation:

The Poisson distribution's equation is:

P(x) = (nˣ*e⁻ⁿ)/x!

where P is the probability, n is mean number, and x the number of the event happens, so:

$P(3) = \frac{5.8^3*e^{-5.8}}{3!}$

P(3) = 0.098

For 45 years, the years that are expected to have 3 hurricanes are

P(3) * 45 = 0.098*45 = 4.41

Yes, it does. The Poisson distribution works well because the observed value of the number of years that 3 hurricanes occur is 45-year period is very close to the calculated value.

8 0

3 years ago

Light bulbs manufactured at a certain factory have a 3% probability of being defective. what is the probability that 5 out of a

lbvjy [14]

A common discrete distribution is used in statistics, as opposed to a continuous distribution is called a Binomial distribution. The probability that 5 out of a shipment of 30 will be defective is 0.001617.

<h3>What is Binomial distribution?</h3>

A common discrete distribution is used in statistics, as opposed to a continuous distribution is called a Binomial distribution. It is given by the formula,

P(x) = ⁿCₓ pˣ q⁽ⁿ⁻ˣ⁾

Where,

x is the number of successes needed,

n is the number of trials or sample size,

p is the probability of a single success, and

q is the probability of a single failure.

The probability of the bulb being defective is 3%(0.03) and the probability of the bulb not being defective is 97%(0.97).

Now, it is needed to be found that the probability that 5 out of a shipment of 30 will be defective can be written as,

P(x) = ⁿCₓ pˣ q⁽ⁿ⁻ˣ⁾

P(x=5) = ³⁰C₅ (0.03)⁵ (0.97)²⁵

P(x=5) = 0.001617

Hence, the probability that 5 out of a shipment of 30 will be defective is 0.001617.

Learn more about Binomial Distribution:

brainly.com/question/14565246

#SPJ2

3 0

2 years ago

I need help with shapes, can someone help me with this problem

posledela

Answer:

90%

Step-by-step explanation:

9/10's of the two rectangles are shaded and 9/10 = 90%

7 0

3 years ago

Read 2 more answers