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Annette [7]
3 years ago
6

Which expressions are equivalent to 4b? 1.b+2(b+2b) 2.3b+b 3.2(2b)

Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0

Answer:

b+2(b+2b) = 7b so this is incorrect.

3b + b = 4b (correct)

2 * 2b = 4b (correct)

The answer is 3b + b and 2 (2b)

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4 × square root of 3​
Oksi-84 [34.3K]

<h3><u>Solution</u><u>:</u></h3>

Please find the photograph for the square root of 3.

  1. Firstly, you have to write 3 as 3. 00 00 00.
  2. Then we should find out the root of the perfect square which is less than 3. Here, 1 is the required perfect square root because 1 × 1 = 1 only which is less than 3.
  3. Now 3 - 1 = 2 and we are placing 2 zeros after it so that it will be 200. Now we have to add 1 with the divisor 1 which will be 2. Then we have to select a number to be placed beside this 2 in such a way that if we multiply this combined number with the new number, then we will get a number which is less than 200. We see that if we place 7 after 2 and multiply 27 with 7, we get 189 which is less than 200.
  4. Now 200 - 189 = 11 and we are placing 2 zeros after it so that it will be 1100. Now we have to add 7 with the divisor 27 which will be 34. Then we have to select a number to be placed beside this 34 in such a way that if we multiply this combined number with the new number, then we will get a number which is less than 1100. We see that if we place 3 after 34 and multiply 3 with 343, we get 1029 which is less than 1100.
  5. Now 1100 - 1029 = 71 and we are placing 2 zeros after it so that it will be 7100. Now we have to add 3 with the divisor 343 which will be 346. Then we have to select a number to be placed beside this 346 in such a way that if we multiply this combined number with the new number, then we will get a number which is less than 7100. We see that if we place 2 after 346 and multiply 2 with 3462, we get 6924 which is less than 7100.
  6. So, we will get the quotient as 1.732 (corrected to three places of decimal).

4√3

= 4 × 1.732

= 6.928

<h3><u>Answer:</u></h3>

<u>6</u><u>.</u><u>9</u><u>2</u><u>8</u>

Hope it helps

8 0
3 years ago
Find the missing length. Round to the nearest tenth, If necessary.
ziro4ka [17]
Using the formula a² + b² = c² but reversing it to c² - b² = x² where x replaces the a for comprehension reasons

so this is the formula
c² - b² = x²

insert the numbers on the triangle in the picture
21² - 8² = 377

since 377 is squared and not the side length, we need to square root it to find x
√377 = 19.4~

Answer: x = 19.4
8 0
4 years ago
What is the difference of the two polynomials?<br><br> (9x2 + 8x) – (2x2 + 3x)
damaskus [11]
(9x^2+8x)-(2x^2+3x)
9x^2+8x-2x^2-3x
7x^2+5x

7 0
3 years ago
Read 2 more answers
What is the difference between domain and range?
alekssr [168]

Domain: all x values between the ends of a line on the x- axis

Range: all y values between the ends of a line on the y-axis

4 0
3 years ago
7/2 + x/2 = -5x + 5/3 <br><br> solve for x
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Answer:

give a heart and 5 stars

Step-by-step explanation:

7 0
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