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gayaneshka [121]
2 years ago
11

Help!?Who can help me with this?

Mathematics
1 answer:
Sonbull [250]2 years ago
6 0
What he/she said is correct
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8(5x–3)–11(3x+7)=102
enyata [817]
40x - 24 - 33x - 77 = 102
40x - 33x = 102 + 24 + 77
7x = 203
x = 29
7 0
3 years ago
Read 2 more answers
The distribution of the number of occurrences of the letter t on the pages of a book is found to be a normal distribution with a
Leno4ka [110]
The distribution of the number of occurrences of the letter t on the pages of a book is found to be a normal distribution with a mean of 44 and a standard deviation of 18. If there are 500 pages in the book, which sentence most closely summarizes the data?

A. The letter t occurs less than 26 times on approximately 170 of these pages. 

B. The letter t occurs less than 26 times on approximately 15 of these pages. 

C. The letter t occurs more than 26 times on approximately 420 of these pages. 

D. The letter t occurs more than 26 times on approximately 80 of these pages.

.Answer: 
<span>mean = 44 </span>
<span>sd = 18 </span>
<span>that means that "26" is 1 s.d. down, or at the 16th %ile </span>


<span>so, there is a .16 chance that "t" will occur less than 26 times on any single page. </span>
<span>consequently, there is a .84 chance that it will occur more than 26 times on any single page. </span>

<span>Using that information, and knowing that 16% of 500 is 80, and 84% of 500 is 420, can you see where "C" is correct? </span>
4 0
3 years ago
Read 2 more answers
Anybody know the answer??
Nady [450]

If you solve for theta, it would be 3pi/4

4 0
3 years ago
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Write a related subtraction fact for 7+3=10
saveliy_v [14]

family fact:

7+3 =10

3+7 = 10

10-3 =7

10-7 = 3

4 0
3 years ago
Read 2 more answers
Evaluate: 7( 14 - 8) - 6²<br><br><br>5<br><br>6<br><br>7<br><br>8 <br><br>please help if possible 3
irakobra [83]

Answer:

6

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

7(14 - 8) - 6²

<u>Step 2: Evaluate</u>

  1. Exponents:                                                                                                        7(14 - 8) - 36
  2. (Parenthesis) Subtract:                                                                                     7(6) - 36
  3. Multiply:                                                                                                             42 - 36
  4. Subtract:                                                                                                             6
4 0
2 years ago
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