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3 years ago

1 is 4x - 3 equals 19 true false or open

Mathematics

1 answer:

Dafna11 [192]3 years ago

4 0

I belive the answer to 1 is false.

The answer to 2 is C:5

The answer to 3 is a:17.5. We can find this by dividing 42 by 2.4

Hope this helps!

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How many quarter inch cubes fit into 1 inch and 3 3/4 inch?

Anton [14]

1 inch = 4 cubes 3 3/4 = 15 cubes

8 0

3 years ago

Two in-line skaters, Nell and Kristin, start from the same point and skate in the same direction. Nell skates at 16 miles per ho

Paha777 [63]

First, we count how far reached the Nell:
3,5 * 16 = 56 miles

Secondly, we count how far reached the Kristin:
3,5 * 18 = 63 miles

Now we expect the difference in the distance between them:
63 - 56 = 7 miles

The results that Kristin about seven miles driven more than Nell.

8 0

3 years ago

Identify the expression for calculating the mean of a binomial distribution

TEA [102]

Option C: np is the expression used for calculating the mean of a binomial distribution.

Explanation:

From the options, we need to determine the expression that is used for calculating the mean of a binomial distribution.

Option A: npq

The variance of the binomial distribution can be calculated using the expression npq.

Hence, Option A is not the correct answer.

Option B: $\sqrt{npq}$

The standard deviation of the binomial distribution can be calculated using the expression $\sqrt{npq}$

Hence, Option B is not the correct answer.

Option C: np

The mean of the binomial distribution can be calculated using the expression np

Hence, Option C is the correct answer.

Option D: $\sum\left[x^{2} \cdot P(x)\right]-\mu^{2}$

The mean of the binomial distribution cannot be determined using the expression $\sum\left[x^{2} \cdot P(x)\right]-\mu^{2}$

Hence, Option D is not the correct answer.

8 0

4 years ago

5x+2(3+x) x =4 I don't know

disa [49]

Answer:

Step-by-step explanation:

5x+2(3+x)

The first step is to distribute the 2

5x+2*3 + 2x

5x+6+2x

Combine like terms

7x+6

Now substitute x=4

7*4+6

28+6

5 0

4 years ago

Benita washes several dogs each day. She is paid $25 to wash each dog. Which equation best represents this situation?

Alecsey [184]

Answer:

7x+25???

Step-by-step explanation:

That's what I think

8 0

3 years ago

Read 2 more answers