3 years ago

Anyone know how to do #3 on this trig worksheet

Mathematics

1 answer:

STatiana [176]3 years ago

7 0

The answer I'm pretty sure is B but I can't really explain it, sorry

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Match each expression in the left column with the correct product in the right column.

lesya692 [45]

Answer:

-6

-6i

Step-by-step explanation:

1) √4 . √-3 . √-3

$\sqrt{4} = 2$

$\sqrt{-3} . \sqrt{-3} = (\sqrt{-3})^2$

$\sqrt{4} . (\sqrt{-3})^2 = 2 \times -3 =$ -6

2) √-4 . √-3 . √-3

$\sqrt{-4} = 2i$ .

Therefore, $\sqrt{-4} . \sqrt{-3} . \sqrt{-3} = 2. \sqrt{-1} \times -3 = 2i \times (-3) =$ - 6i

3) √4 . √3 . √-3

$\sqrt{4} = 2$

$\sqrt{3} . \sqrt{-3} = (\sqrt{3})^2 . \sqrt{-1}$

$\implies 2 \times 3i =$ 6i

4) √4 . √3 . √3

$\sqrt{4} = 2$

$\sqrt{3} . \sqrt{3} = (\sqrt{3})^2 = 3$

Therefore, √4 . √3 . √3 = 2 . 3 = 6

5 0

3 years ago

8s+4(4s-3)=4(6s+4)-4

elena55 [62]

Answer:

There is no solution.

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3 years ago

Please answer this correctly without making mistakes

ddd [48]

Answer:

589

Step-by-step explanation:

l x w

19x11

5x31

5x45

589

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3 years ago

What is the formula to find the SA of a pyramid

shusha [124]

Answer:

SA= 12pl+B

Step-by-step explanation:

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3 years ago

A class consists of 55% bots and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% o

oksian1 [2.3K]

Answer:

0.1575

Step-by-step explanation:

Probability of picking a girl is 0.45 and probability of a girl scoring A is 0.35.

Therefore probability of a girl scoring A is 0.45*0.35=0.1575

8 0

3 years ago