3 years ago

Which of the following is equal to 20x + 8y - 80?

Mathematics

2 answers:

Andrews [41]3 years ago

5 0

It would be C because if you take out the four, the coefficients are multiples of 4 so it simplifies down.

JulsSmile [24]3 years ago

4 0

It would be C because it make way more sense than the others

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Olin [163]

Answer:

-6.3

Step-by-step explanation:

2.6 * 10 (10 hours and 2.6 degrees) = 26

19.7 - 26 = -6.3

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3 years ago

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ololo11 [35]

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2 years ago

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What is the base of a triangle with a height of 14 cm and an area of 42 square cm?

sasho [114]

Answer:

$6cm$

Step-by-step explanation:

$area = \frac{1}{2} \times base \times height \\ 42 = \frac{1}{2} \times b \times 14 \\ 42 = \frac{14b}{2} \\ 42 = 7b \\ \frac{42}{7} = \frac{7b}{7} \\ base = 6cm$