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3 years ago

I need help with number 2

Mathematics

2 answers:

Romashka [77]3 years ago

7 0

Answer:

Unlikely.

Step-by-step explanation:

Since the percentage is at least greater than 0%, it is not impossible. However, since it is less than 50%, it is highly unlikely.

Shtirlitz [24]3 years ago

4 0

Answer:1st because of the formula

Step-by-step explanation:

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Jan spends part of her year as a member of a gym. She then finds a better deal at another gym, so she cancels her membership wit

ivann1987 [24]

Answer:

Number of months spent in first gym = 9

Number of months spent in second gym = 3

Step-by-step explanation:

Let she spent x months in a year at first gym and y months in a year at second gym

Now, there are 12 months in one year

⇒ x + y = 12

y = 12 - x .......(1)

Now, total money she spent in one year = $825

⇒ 75·x + 50·y = 825 .........(2)

Putting value of y from equation (1) in equation (2)

75·x + 50·(12 - x) = 825

⇒ 75·x - 50·x + 600 = 825

⇒ 25·x = 225

⇒ x = 9

Now, putting this value of x in equation(1)

⇒ y = 12 - 9

⇒ y = 3

Hence, number of months spent in first gym = 9

And number of months spent in second gym = 3

7 0

4 years ago

X^2-4x-5=0 <br> Use quadratic formula to solve

iVinArrow [24]

the answer is x1= -1 , x2= 5

8 0

3 years ago

Read 2 more answers

3x+5 and g(x)= x^2-6 find F(4)

Novosadov [1.4K]

Answer:

Which expression has a greatest common factor of 3h?

Step-by-step explanation:

4 0

3 years ago

Can someone please help me on this

Natali5045456 [20]

Is there anything else on the paper that can help me with that? like any questions at the top?

7 0

3 years ago

A government sample survey plans to measure the LDL (bad) cholesterol level of an SRS of men aged 20 to 34.

svet-max [94.6K]

Answer:

The sampling distribution of x is N(118, 2.5).

Step-by-step explanation:

We have that:

The mean of the population is $\mu = 118$

The standard deviation of the population is $\sigma = 25$ .

(a) Choose an SRS of 100 men from this population. What is the sampling distribution of x? (Use the units of mg/dL.)

The mean of the sampling distribution is the same as the mean of the population.

The standard deviation of the sampling distribution is the standard deviation of the population divided by the square root of the sample size. So

$s = \frac{25}{\sqrt{100}} = 2.5$

This means that the sampling distribution of x is N(118, 2.5).

7 0

3 years ago