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Crazy boy [7]
3 years ago
13

-4r + 1 = -2r - 17 a. 9b. 11c. -18d. -16​

Mathematics
1 answer:
alukav5142 [94]3 years ago
6 0
The answer would be 9
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9.973 rounded to the nearest hundredth
DaniilM [7]

The hundredths place is the second digit to the right of the decimal point. In this case, it's 7. When rounding, we want to look at the number in the thousandths place, or 3.

If the number is 0 to 4, you round the hundredths digit down to remain the same. If the thousandths digit is 5 to 9, you round up a number.

In this case, since the number is 3, we just keep 7 the same. So, the answer would be:

9.97

4 0
3 years ago
I need help with these questions
Katarina [22]

Answer:

I'm not on this level of school

8 0
3 years ago
First, decide whether the distribution is a discrete probability distribution, then select the reason for making this decision.
Lyrx [107]

It is not a <u>probability distribution</u>, as the sum of the probabilities is more than 1, thus, the correct option is No, considering that:

c) Since the sum of the probabilities is not equal to 1.

-----------------------------------------

For the sequence (x, P(X = x)) representing a probability distribution, it is needed that:

  • All probabilities are between 0 and 1, that is, for all values of x, 0 \leq P(X = x) \leq 1.
  • The sum of all probabilities is 1, that is: \sum_{i = 1}^n P(x_i) = 1

In this problem, the sum of the probabilities is:

\sum_{i = 1}^n P(x_i) = 0.39 + 0.69 + 0.12 = 1.20

<u>Sum is not 1,</u> thus it is not a probability distribution, and the correct option is:

c) Since the sum of the probabilities is not equal to 1.

A similar problem is given at brainly.com/question/24858659

8 0
3 years ago
Need help with this asap <br> 5x+2+2x-10
Bess [88]

Answer:

7x - 8

Step-by-step explanation:

5x + 2 + 2x - 10

Rearrange terms:

5x + 2x - 10 + 2

Combine like terms (add 2x and 5x):

= 7x - 10 + 2

Combine like terms (add -10 and 2):

= 7x - 8 (This is the simplified form).

6 0
3 years ago
lily receives 30 messages on her cell phone. of those messages,1/5 are picture messages and 7/8 of the remainder are text messag
rodikova [14]
She receives 21. 1/5 of 30 is 6, or the number of picture messages Lilly receives. 7/8 of 24, the number of remaining messages, is equal to 21.
7 0
3 years ago
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