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vesna_86 [32]
3 years ago
5

6

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
6 0

Answer:

  • 276

Step-by-step explanation:

<u>Let the number be x, then we have:</u>

  • 1/3*x - 20 = 72
  • 1/3x = 72 + 20
  • 1/3x = 92
  • x = 92*3
  • x = 276

The number is 276

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Find the range of f(x) = –x + 4 for the domain {–3, –2, –1, 1}.
marishachu [46]

Answer:

\boxed{ \{7, 6, 5, 3 \} }

Step-by-step explanation:

The domain is all possible values for x.

The range is all possible values for f(x) or y.

The domain given is {-3, -2, -1, 1}.

Plug x as {-3, -2, -1, 1} and find the f(x) or y values.

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5 0
3 years ago
(3+i)^2 = c+di, find the value of d.
inna [77]

Answer:

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Step-by-step explanation:

\displaystyle [3 + i]^2 = [3 + i][3 + i] = 9 + 6i + i^2 → 9 + 6i - 1 → 6i + 8

Therefore, the d-value is 6.

<u>Extended</u><u> </u><u>Information</u><u> </u><u>on</u><u> </u><u>the</u><u> </u><u>Complex</u><u> </u><u>Number</u><u> </u><u>System</u>

\displaystyle \sqrt{-1} = i \\ -1 = i^2 \\ -i = i^3 \\ 1 = i^4\:[every\:multiple\:of\:4]

I am joyous to assist you anytime.

3 0
3 years ago
Plz help I’m struggling
dimaraw [331]

Answer:

COA is 63 degrees

HOG is 76 degrees

AOH is 39 degrees

FOE is 39 degrees

Step-by-step explanation:

Hope this helps. Remember the one half of the side has to equal 180 degrees. Vertical angles are the same measure.

7 0
4 years ago
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