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3 years ago

Help!!!!!!!!!!!!!!!!! due in 15min

Mathematics

2 answers:

Kisachek [45]3 years ago

8 0

Answer:

Step-by-step explanation:

When you put the i out in place for x you multiply so

4x9=36

7x9=63

2x9=18

9x9=81

maxonik [38]3 years ago

5 0

Answer:

Step-by-step explanation:

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Events A and B are overlapping.

Karo-lina-s [1.5K]

Answer:

5/11

Step-by-step explanation:

Since the events are overlapping...

P(A or B) = P(A) + P(B) - P(A and B)

P(A) = 4/11

P(B) = 3/11

P(A and B) = 2/11

P(A or B) = 4/11 + 3/11 - 2/11

P(A or B) = 5/11

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3 years ago

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anzhelika [568]

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4 years ago

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If the sin 30° is one half, then the cos ________° = ________. 60°; one half 30°; square root 2 over 2 60°; square root 3 over 2

liberstina [14]

Answer:

60°; one half

Step-by-step explanation:

we know that

If two angles are complementary, then sine of one angle equals the cosine of the other angle and vice versa

$A+B=90^o$

$B=90^o-A$

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In this problem we have

$sin(30^o)=\frac{1}{2}$

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3 years ago

Please help! Find the area of the regular hexagon. Round your answer to the nearest tenth.

kicyunya [14]

Answer:

Here is the formula of what u want . so the answer would be A≈841.78 .

plz check the final answer yourself again ^^

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3 years ago

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Oksana_A [137]

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4 years ago

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