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shusha [124]
3 years ago
13

Answer 20 and 21 please

Mathematics
1 answer:
weeeeeb [17]3 years ago
7 0

Answer:

20 is unreal numbers and 21 is no solution

Step-by-step explanation:

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Drake needs to drill holes in a wooden plank. The holes will have a diameter of 0.5 millimeters, with an error allowance of 0.05
Tanzania [10]

Answer:

 |x − 0.5| = 0.05

Step-by-step explanation:

Here x represents the diameter,

Since, an error of 0.05 millimeters is allowance in diameter,

Thus, the maximum acceptable diameter = x + 0.05,

And, the minimum acceptable diameter = x - 0.05

According to the question,

The holes will have a diameter of 0.5 millimeters,

Thus, x - 0.05 < 0.5  and 0.5 < x + 0.05

⇒ x - 0.5 < 0.05 and x - 0.5 > - 0.05  

⇒ x - 0.5 < 0.05 and -(x -0.5) < 0.05

⇒ |x-0.5| < 0.05

⇒ Option D is correct.

6 0
2 years ago
What is 5x5x5x5 plz tell me
Llana [10]
5 times 5 times 5 times 5 is 20

So just count by 5

Hope this help
6 0
3 years ago
Read 2 more answers
6) Lynn wrote two integers on the chalkboard. The integers she wrote were 45 and -17. What is
lana [24]
45+-17
This is the same as subtracting 17 from 45
45-17=28
8 0
3 years ago
Find the values of a and b such that<br> x^2 + 3x + 4 = (x + a)^2+ b
sesenic [268]

Answer:

x {}^{2}  + 3x + 4 = (x  + a) {}^{2}  + b \\ x {}^{2}  + 3x + 4 = x {}^{2}  + 2ax + a {}^{2} + b \\   = x {}^{2}  + a {}^{2}  + 2ax + b \\  2a = 3 \\ b = 4 \\ a  =  \frac{3}{2}  \\ b = 4

8 0
3 years ago
What is the median for this data set?
Sever21 [200]
The meridian for this set is 3.005 (option C)

Note ➡The word Median is lime the "average" for all of the values of the particular problem
8 0
3 years ago
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