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adelina 88 [10]
3 years ago
6

Rewrite the expression as an equivalent expression with fewer terms: 31-4-(5r+7​

Mathematics
1 answer:
asambeis [7]3 years ago
7 0

Answer:

Expression: 20-5r

Step-by-step explanation:

Given

Expression: 31-4-(5r+7)

Required

Rewrite with fewer terms

Expression: 31-4-(5r+7)

Open Bracket

Expression: 31-4-5r-7

Collect Like Terms

Expression: 31-4-7-5r

Expression: 20-5r

<em>Hence, the equivalent is 20 - 5r</em>

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Which term best describes a proof in which you assume the opposite of what u want to prove​
ANTONII [103]

Answer:

The Latin phrase is "reduction ad absurd um", meaning reduction to absurdity. You assume the opposite and show that logically it leads to a contradiction and therefore cannot be true.

Hope this helps.

8 0
3 years ago
Given 6, 8, and 11 as the three sides of a triangle, classify it as one of the following:
Katyanochek1 [597]

9514 1404 393

Answer:

  C. Obtuse

Step-by-step explanation:

The "form factor" I use for this is ...

  a^2 + b^2 - c^2 = 6^2 + 8^2 - 11^2 = 36 +64 -121 = -21

The value is negative, indicating an OBTUSE triangle.

__

<em>Additional comment</em>

In this expression, 'a' and 'b' are the two shortest sides (in no particular order) and 'c' is the longest side. The interpretation is ...

  negative — obtuse

  zero — right

  positive — acute

__

If you're familiar with Pythagorean triples, you know that the 3-4-5 right triangle triple can be doubled to give 6-8-10. The long side of 11 is longer than the hypotenuse for the right triangle, so would correspond to a largest angle greater than 90°. The 6-8-11 triangle would be OBTUSE.

5 0
3 years ago
Read 2 more answers
What is the square root 3175 by division method
Vedmedyk [2.9K]

56.347..........

just simply put the value 3175 under division root and make pairs of 31 and 75.Now think of a number whose square will be nearest to 31 and that ll be 5.Now write 5 in the quotient and 5 also 5 under the divider.Now by multiplying 5 with the 5 in the quotient you ll get 25 write this under 31.And by adding 5 in the divider 5 youll get 10.write this under the divider.no by subtracting 25 from 31 you ll get 6 and by bringing 75 down it ll be 675.Now think of a number again and write it with 10.Like 6 into 6 is 36 and when you multiply 6 with 106 you ll get nearest number to 675 that ll be 636.Now because its giving a remainder just add a .0 in the question and continue to solve it the same way.And as it ll be a continuous answer so just add continuty dots........ or just round it off to nearest whole number

4 0
3 years ago
Read 2 more answers
A large diamond with a mass of 712.04 grams was recently discovered in a mine. if the density of the diamond is 3.51 grams over
fredd [130]

Answer:

202.9 cm^3

Step-by-step explanation:

Mass is 712.04 grams

Density is 3.51 grams/cm^3

Volume = (712.04 g)/(3.51 grams/cm^3) = 202.9 cm^3

8 0
2 years ago
While Dylan was visiting his sister in Fairview, he bought a microscope that was marked down 60% from an original price of $75.
sergiy2304 [10]

Answer:

68599999999999999ihjg

6 0
3 years ago
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