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Ghella [55]
3 years ago
11

Find the range of the function f(x) = 4x - 7,

Mathematics
1 answer:
umka21 [38]3 years ago
7 0

Answer:

  range: {-27, -11, 5, 25}

Step-by-step explanation:

Evaluating the function for the given domain values gives the range values ...

  {-27, -11, 5, 25}

__

For example, 4(-5)-7 = -20-7 = -27.

It's a matter of doing the arithmetic. A spreadsheet or calculator that works with lists can be helpful.

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In triangle, prove that tan A -cot B - cot C=tanA.cotB.cotC​
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See picture.

Step-by-step explanation:

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3 years ago
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Answer:

B

Step-by-step explanation:

∠ ABC = 9x + 5 ( alternate angles )

∠ ABC and ∠ DCB are sam- side interior angles and sum to 180° , that is

9x + 5 + 16x = 180

25x + 5 = 180 ( subtract 5 from both sides )

25x = 175 ( divide both sides by 25 )

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aliina [53]
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3 years ago
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andrew11 [14]

Answer: AE = 120.83 m  DE= 148.66 m

The perimeter of the pentagon is 699.49

Sketch attached.

Step-by-step explanation: First we have to imagine the shape of the pentagon. In order to satisfy the requirement  "that E is 50 m from the side AB and 30 m from the side BC," <em><u>this must be a concave pentagon. </u></em>

To determine the lengths of sides AE and DE, subtract the given distances of E from the lines, and use those values in the Pythagorean Theorem.

AE: 110^{2}+50^{2}=14600     \sqrt{14600}=120.8304597

DE: 100^{2}+110^{2}=22100   \sqrt{22100}=148.6606875

Add those lengths and the remaining sides of the "rectangle shown below" to calculate the perimeter.

280+150+120.83+148.66= 699.49

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F

Step-by-step explanation:

if t is the total acreage and its reduced by 8%, then t -0.08

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