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3 years ago

The range of the function given below is the set of all positive real numbers greater than 5.

Mathematics

1 answer:

Nonamiya [84]3 years ago

7 0

Answer:

B. False. The range is the set of ALL real numbers.

Step-by-step explanation:

That is false because we can substitute values of x which will give negative real numbers to give negative values of the function.

x = -10 : f(x) = 5 - 40 = -35.

The actual range is the set of all real numbers.

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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

Simplify the expression where possible. (-5x 2)^3

Drupady [299]

-1000x^3 hope this helps

3 0

3 years ago

Read 2 more answers

I really NEED HELP Ill give you a brainiest if you guys help me ASAP because I dont understand

MAXImum [283]

Answer:

<h2>I think it is B if I am wrong i am sooooo sorry!</h2>

Step-by-step explanation:

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8 0

2 years ago

Read 2 more answers

Slove for P. 5/7=p+4/7

Sever21 [200]

p= 1/7
Alright, so first, you need to flip the equation.It will turn into p+4/7=5/7
Next, you want to get the variable by itself so you need to subtract 4/7 from both sides. 5/7-4/7=1/7
p=1/7

5 0

3 years ago

Find five solutions for the linear equation 2x + y = 5, and plot the solutions as points on a coordinate plane.

WARRIOR [948]

Step-by-step explanation:

First put it in point slope for y = mx + b

y = -2x + 5

Now plug in what ever number you want for x and solve.

4 0

3 years ago