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3 years ago

If a quantity increases by 25% and then decreases by 25%, will that result be the original quantity? Explain.

Mathematics

1 answer:

dangina [55]3 years ago

5 0

Yes it will because it is going up the exact same amount as it is going down

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A random sample of 38 wheel chair users were asked whether they preferred cushion type A or B, and 28 of them preferred type A w

-BARSIC- [3]

Answer:

The statement that cushion A is twice as popular as cushion B cannot be verified

Step-by-step explanation:

From the question we are told that:

Sample size n=38

Type a size A $X_a=28$

Type a size B $X_b=10$

Generally the probability of choosing cushion A P(a) is mathematically given by

$P(a)=\frac{28}{38}$

$P(a)=0.73$

Generally the equation for A to be twice as popular as B is mathematically given by

$P(b)+2P(b)=3P$

Therefore Hypothesis

$Null H_0: p \leq \frac{2P}{3P} \\Altenative H_A:p>\frac{2P}{3P}$

Generally the equation normal approx of p value is mathematically given by

$z=\frac{x-np_0-0.5}{\sqrt{np_0(1-p_0)} }$

$z=\frac{28-(38*2/3)_0-0.5}{\sqrt{38*2/3*1/3} }$

$z=0.75$

Therefore from distribution table

$Pvalue=1-\theta (0.75)$

$Pvalue=0.227$

Therefore there is no sufficient evidence to disagree with the Null hypothesis $H_0$

Therefore the statement that cushion A is twice as popular as cushion B cannot be verified

7 0

3 years ago

Determine the value of the variable in the simplified expressions. What is the value of X? Gx+h^-3=1/g^6+1/h^3. X=_____. What is

swat32

Answer:

x=-6

y=4

Step-by-step explanation:

i just took the quiz

hope i could help

5 0

2 years ago

Read 2 more answers

Help me with 2, 8, and 10 plz

OverLord2011 [107]

For #2:

3x^2 + 4 – 2x^2 + 6

You need to combine your like terms:
 3x^2 – 2x^2= x^2

4 + 6 = 10

This will now give you:

X^2 +10

3 0

3 years ago

Write a division problem with as the dividend and 3 as the divisor. Then, find the quotient.

Mekhanik [1.2K]

Step-by-step explanation:

The dividend is the number which is being divided and the divisor is what you divided by. An example is:

12 ÷ 3. The quotient is 4.

4 0

2 years ago

Read 2 more answers

August 22 3months later what day would it be

Brut [27]

August 22, September 22, October 22, November 22

3 Months later would be November 22

6 0

3 years ago