3 years ago

PLEASE HELP!!

Mathematics

1 answer:

expeople1 [14]3 years ago

7 0

Answer:

$9^{4}$

Step-by-step explanation:

9^-5 = 9^4 x 9^-9

4-9 = -5

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Please show the solving

alisha [4.7K]

Step-by-step explanation:

YELLOW TRIANGLE:

$\sin(30) = \frac{x}{12} \\ x = 12 \sin(30) = 6$

PURPLE TRIANGLE:

Since one of the angle is 45°, x = BC = 6

To prove:

$\tan(45) = \frac{bc}{x} \\ bc = x \tan(45) = 6 \tan(45) = 6$

PINK TRIANGLE:

$\tan(60) = \frac{bc}{y} \\ y = \frac{bc}{ \tan(60) } \\ = \frac{6}{ \tan(60) } \\ = 2 \sqrt{3}$

8 0

3 years ago

12 tickets for $4.68 or 10 tickets for $4.50

ValentinkaMS [17]

4.68/12 = 0.39 per ticket
4.50/10 = 0.45 per ticket.

So, we are better off taking 12 tickets for $4.68

Hope this helps!

5 0

4 years ago

A square has a perimeter of 148 inches. How do you find the length of the diagonal of the square?

Sidana [21]

Answer:

52.33 inches

Step-by-step explanation:

Multiply the length of one side by the square root of 2.

In this case: 37, you would divide that by the square root of 2.

Hope this helps!

6 0

4 years ago

if six times a number is decreased by six, the result is the same as when three times the number is increased by twelve. find th

Yuliya22 [10]

I think the answer is 7, Please let me know if im wrong

8 0

3 years ago

Round your answer to the nearest hundredth.

kakasveta [241]

Step-by-step explanation:

cosB=4/5

B=36.86°

Hope it helps u

7 0

4 years ago

******PLEASE HELP!!******

PLEASE HELP!!