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3 years ago

Which of the following is an irrational number?

2 answers:

7 0

Wouldn't 9.87 times 10 to the 4 = 9.87 x 10^4 = 98700 and be a rational number?

that was why I asked if none of the above was available.

11Alexandr11 [23.1K]3 years ago

3 0

The correct answer is D 9.87 times 10 to the 4

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What is the answer to 2/5(10p-15)=14?

satela [25.4K]

Answer:

P = 5

Step-by-step explanation:

2/5(10p) - 2/5(15)= 14

20p/5 - 30/5= 14

4p - 6= 14

4p = 20

p=5

8 0

3 years ago

A machine that fills 12-quart size packages of ice cream runs 8 hours a day, 7 days a week. The machine fills 900 ice cream pack

otez555 [7]

Answer:

Number of ice cream packaged each week = 604,800 Ice cream

Step-by-step explanation:

Given:

One package = 12 ice cream

Per day packing = 8 hour

Number of days work in a week = 7 days

Per hour packing = 900 package

Find:

Number of ice cream packaged each week :

Computation:

⇒ Number of ice cream packaged each week = Number of days work in a week × Per day packing hour × Per hour packing × Per package ice cream

⇒ Number of ice cream packaged each week = 7 × 8 × 900 × 12

⇒ Number of ice cream packaged each week = 604,800 Ice cream

8 0

3 years ago

In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal dist

Tcecarenko [31]

Answer:

a. 0.7291

b. 0.9968

c. 0.7259

Step-by-step explanation:

a. np and n(1-p) can be calculated as:

$np=23\times 0.48\\\\=11.04\\\\n(1-p)=23(1-0.52)\\\\=11.96$

#Both np and np(1-p) are greater than 5, hence, normal approximation is most appropriate:

$\mu_x=11.04\\\\\sigma^2=np(1-p)=0.48\times 0.52\times 23=5.7408$

#Define Y:

Y~(11.04,5.7408)

$P(X\leq 12)\approx P(Y\leq 12.5)\\\\P(Z\leq \frac{(12.5-11.04)}{\sqrt{5.7408}})=\\\\=1-0.2709\\\\=0.7291$

Hence, the probability of 12 or fewer is 0.8291

b. The probability that 5 or more fish were caught.

#Using normal approximation:

$P(X \geq 5) \approx P(Y \geq 4.5) = P(Z \geq\frac{ (4.5-11.04)}{\sqrt{(5.7408)}})\\\\=1-0.0032\\\\=0.9968$

Hence, the probability of catching 5+ is 0.9968

c. The probability of between 5 and 12 is calculated as;

-From b above $P(X\geq 5)=0.9968$ and a , $P(X\leq 12)$ =0.7291

$P(5\leq X\leq 120\approx P(4.5\leq Y\leq 12.5)\\\\=0.7291-(1-0.9968)\\\\=0.7259$

Hence, the probability of between 5 and 12 is 0.7259

4 0

3 years ago

You are given that a wheel has a radius of 2 feet and a spin rate of 10 revolutions per minute. Describe how you would determine

igomit [66]

Answer:

2.09.ft/min

Step-by-step explanation:

There is a formula for the linear velocity using rpm:

V = (2π)/60 * r * rpm

V = (2π)/60 * 2ft * 10 = 2.09ft/min

4 0

3 years ago

Read 2 more answers

Rectangle JKLM is reflected across the x-axis and then the y-axis. The point I was

Sunny_sXe [5.5K]

Reflection involves mirroring a point over a line.

When L is reflected across the x and y axes, the new coordinates are (7,3)

Given that:

$(x,y) \to (-7,-3)$

When a point is reflected across the x-axis, the rule is:

$(x,y) \to (x,-y)$

So, we have:

$(-7,-3) \to (-7,3)$

When a point is reflected across the y-axis, the rule is:

$(x,y) \to (-x,y)$

So, we have:

$(-7,3) \to (7,3)$

Hence, the new coordinates of L are (7,3)