3 years ago

5. The measures of two complementary angles are

Mathematics

1 answer:

77julia77 [94]3 years ago

7 0

Answer:

Step-by-step explanation:

measures of complementary angles always add up to 90°

(3y - 1) + (4y + 7) = 90

3y + 4y - 1 + 7 = 90

7y + 6 = 90

7y = 90 - 6

7y = 84

y = 84/7

y = 12

To Calculate the measure of each of the angles replace variable y with 12

3(12) - 1 = 35 degrees

4(12) + 7 = 55 degrees

35 + 55 = 90°

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aliya0001 [1]

Answer:

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Can you guys help me please :(

ale4655 [162]

Answer:

720 m²

Step-by-step explanation:

Area = base × height

= 12 × 6

= 72 mm²

≈ 720 m² (1 mm = 10 m)

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