2 years ago

16. (a + b)(3a - b)(2a +76)

Mathematics

1 answer:

balu736 [363]2 years ago

7 0

6a^3+228a^2+4a^2b+152ab-2ab-76b^2

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Ainat [17]

Answer:

a) 5

b) 20

c) 28

d) 10

Step-by-step explanation:

a) 7-2=5

b) 2(7)+3(2)

= 14+6

= 20

c) 2(7)(3)= 28

d) (7-2)^2

= (14-4)

= 10

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2 years ago

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3 years ago

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3 years ago

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3 years ago

Calculate the angle of depression, x, if the boat is 850 ft. away from the lighthouse and the lighthouse is 250 ft. high. Round

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Firstly , we can draw diagram

we can see that

adjacent = 850

opposite =250

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