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devlian [24]
3 years ago
14

When resting, a spring measures 73.3 millimeters. When the spring is

Mathematics
1 answer:
Firlakuza [10]3 years ago
4 0

Answer:

  -30%

Step-by-step explanation:

The percentage change in length is given by ...

  percent change = ((new length) -(original length))/(original length) × 100%

  = (51.29 -73.3)/73.3 × 100%

  = -22.01/73.3 × 100% = -0.30027 × 100%

  = -30%

The decrease in the length of the spring was 30%.

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For a concert event, there are $30 reserved seat tickets and $20 general admission tickets. There are 1500 reserved seats availa
Amanda [17]

Answer:

The system of inequalities is as follows:

30x + 20y ≥ 61,000

x ≤ 1500

x + y ≤ 2800

x ≥ 0

y ≥ 0

Step-by-step explanation:

The system of inequalities can be explained as follows:

30x + 20y ≥ 61,000 <= Indicating a take in of at least $61,000 in ticket sales.

x ≤ 1500 <= Indicating that 500 reserved seats are available.

x + y ≤ 2800 <= Indicating limit of the paid ticket holders to 2800.

x ≥ 0  <= Indicating ticket x must be equal or greater than 0.

y ≥ 0 <= Indicating ticket y must be equal or greater than 0.

5 0
3 years ago
NEED URGENT HELP ON 5 QUESTIONS SIMILAR TO THIS!!!!! WILL GIBE BRAINLIEST AND 5 STARS IF CORRECT QUICKLY! - 50 POINT - also, no
miv72 [106K]

Answer:

As X → - ∞ , y → ∞ and as x→ ∞ , y → ∞

<h3>option c is the correct option.</h3>

Step-by-step explanation:

let f(x) = y = 3x² - 5x + 2

y = 3x² - 5x + 2

= x ( 3x - 5 ) + 2

y = ∞ ( 3 ( ∞ - 5 ) ) + 2

= ∞ (∞ ) + 2

y = ∞

y → ∞ as x → ∞

Now,

as x → - ∞

y = x ( 3x - 5 ) + 2

= ∞ ( 3 ( - ∞ ) - 5 ) + 2

= - ∞ ( - ∞ ) + 2

∞² + 2 = ∞

Hence , Option C is the correct answer.

6 0
4 years ago
If f(x) = 3x-2, find f(8) - f(5)
neonofarm [45]

Answer:

9

Step-by-step explanation:

f(8)=3(8)-2=22

f(5)=3(5)-2=13

22-13=9

4 0
3 years ago
Read 2 more answers
In a class 22 of students, 14 have a brother and 9 have a sister. There are 2 students who do not have any siblings. What is the
djyliett [7]
I believe this is the way to solve it.
 22 - 2 = 20
 20 is 90.9% of 22
So the probability of choosing a student with a sibling at random should be 90.9% (or you can round up to 91%)

I hope this helps :)
5 0
4 years ago
As a rule of thumb, the sampling distribution of the sample proportion can be approximated by a normal probability distribution
netineya [11]

As a rule of thumb, when each component is selected independently from the same population, the sampling distribution of the sample percentage may be estimated by a regular probability distribution.

<h2>Why is it crucial to use the thumb rule?</h2>
  • One of our primary, simple-to-learn ways to handle complexity is the rule of thumb. Real thumb rules take into account operating, security, and financial constraints.
  • They inform us of the likely location of a practical solution. Additionally, they reveal which tactics are most prone to failure.
<h3>What is sampling distribution?</h3>
  • A statistic that is obtained by sampled data from a bigger population is known as a sampling distribution.
  • It depicts an array of potential results that may result from a statistic, such as the mean or mode of a certain parameter because there is really a population.

Therefore the main solution is- from the identical group, each component is individually chosen.

Learn more about sampling distribution here:

brainly.com/question/13501743

#SPJ4

8 0
2 years ago
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