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spayn [35]
3 years ago
8

Write the reciprocal of -2/7

Mathematics
1 answer:
gtnhenbr [62]3 years ago
7 0

Answer:

answer is -7/2

Step-by-step explanation:

You might be interested in
In high school, some students have been confused to believe that 22/7 is already the actual value of π or an acceptable approxim
jarptica [38.1K]

Answer:

Since it has smaller absolute and relative errors, 355/113 is a better aproximation for \pi than 22/7

Step-by-step explanation:

The formula for the absolute error is:

Absolute error = |Actual Value - Measured Value|

The formula for the relative error is:

Relative error = |Absolute error/Actual value|

I am going to consider the actual value of \pi as 3.14159265359.

In the case of 22/7:

22/7 = 3.14285714286.

Absolute error = |3.14159265359 - 3.14285714286| = 0.00126448927

Relative error = 0.00126448927/3.14159265359 = 0.00040249943 = 0.04%

In the case of 355/113

355/113 = 3.14159292035

Absolute error = |3.14159265359 - 3.14159292035| = 0.00000026676

Relative error = 0.00000026676/3.14159265359 = 0.000000085 = 0.0000085%

Since it has smaller absolute and relative errors, 355/113 is a better aproximation for \pi than 22/7

5 0
4 years ago
Simplify: (-2x - 3) – (3x2 – 8x + 9). Choose the standard form of the answer.
lawyer [7]

Answer:

C

Step-by-step explanation:

Given

(- 2x - 3) - (3x² - 8x + 9) ← distribute parenthesis

= - 2x - 3 - 3x² + 8x - 9 ← collect like terms

= - 3x² + 6x - 12 → C

7 0
3 years ago
.
Romashka-Z-Leto [24]

Answe13

Step-by-step explanation:

11111

1122

8 0
3 years ago
Factor completely, then place the factors in the proper locatio<br> y2x - yx - 20
katovenus [111]
I don’t believe it is factorable
6 0
4 years ago
For every bag of trail mix the local Scout Guide troop sells,they earn $0.45. write an expression to represent this situation.
maw [93]

Step-by-step explanation:

0.45x, where x = number of bags sold

Hope this helped. Have a good day!

7 0
3 years ago
Read 2 more answers
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