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3 years ago

Complete the Table provided below when considering a bicycle model.

Mathematics

1 answer:

Serga [27]3 years ago

3 0

Answer:

i) Height a = 6 feet

ii) height b = 6 feet + 1 feet = 7 feet .... since radius, r = 1 feet

iii) height c = 6 feet + 2 feet = 8 feet .... since diameter, = 2 $\times$ r = 2 feet

iv) height d = 6 feet + 1 feet = 7 feet

v) height e = 6 feet .... the point e is actually same point as point a but

at a distance of one revolution of the wheel from the point a

Step-by-step explanation:

i) Height a = 6 feet

ii) height b = 6 feet + 1 feet = 7 feet .... since radius, r = 1 feet

iii) height c = 6 feet + 2 feet = 8 feet .... since diameter, = 2 $\times$ r = 2 feet

iv) height d = 6 feet + 1 feet = 7 feet

v) height e = 6 feet .... the point e is actually same point as point a but at a distance of one revolution of the wheel from the point a

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At Appalachian State University it is known that 52% of undergraduates are female. If a sample of 150 undergraduate students was

In-s [12.5K]

Answer:

a. The sampling distribution will be approximately normal.

d. The mean of the sampling distribution will be close to 52%

g. The standard deviation of the sampling distribution will be 0.0408

Step-by-step explanation:

For this problem the sample size is large enough (n>30), and then the sampling distribution $\hat p$ would be approximately normal. The mean of the sampling distributions is given by $p=0.52$

The expected value for the sampling distribution would be 0.52 since $E(\hat p) = p$

And for the standard deviation we know that is given by:

$Sd= \sqrt{\frac{p (1-p)}{n}}=\sqrt{\frac{0.52(1-0.52)}{150}}=0.0408$

So the correct answers on this case are:

a. The sampling distribution will be approximately normal.

d. The mean of the sampling distribution will be close to 52%

g. The standard deviation of the sampling distribution will be 0.0408

3 0

3 years ago

Help Please, anyone good at domain values of composite functions.

Delicious77 [7]

Answer:

second choice

Step-by-step explanation:

$(f \circ g)(x) =$

$= f(g(x))$

$= f(-7x + 7)$

$= \sqrt{-7x + 7 + 3}$

$= \sqrt{-7x + 10}$

Let x = 5:

$(f \circ g)(5) = \sqrt{-7(5) + 10}$

$(f \circ g)(5) = \sqrt{-35 + 10}$

$(f \circ g)(5) = \sqrt{-25}$

Since using x = 5 gives the square root of a negative number, 5 is not in the domain of the composition of the functions.

Answer: second choice

3 0

3 years ago

What is the product of 3a + 5 and 2a2 + 4a – 2?

Triss [41]

Answer:

6a^3+ 22a^4+ 14a-10

Step-by-step explanation:

6a^3 10a^2 12a^2 20a -6a -10

7 0

3 years ago

14.12 = 1/2 (3.6x - 12.8)<br><br> show work

Sergio039 [100]

Answer:

x = 11.4

Step-by-step explanation:

14.12 = $\frac{1}{2}$ ( 3.6x - 12.8 )

Rewrite so that the equation is entirely in decimals;

14.12 = 0.5( 3.6x - 12.8 )

Distribute;

14.12 = 1.8x - 6.4

Inverse operations;

14.12 = 1.8x - 6.4

+6.4 +6.4

20.52 = 1.8x

/1.8 /1.8

11.4 = x

4 0

3 years ago

Read 2 more answers

Solve for the value of z.

Yuki888 [10]

z=18

3z+4+2z-4+90=180

5z+4-4+90=180

5z+90=180

5z=90

z=18

4 0

3 years ago