3 years ago

Can u plz plz help me

2 answers:

rewona [7]3 years ago

8 0

Answer:

Raquel collected 30 marbles

Step-by-step explanation:

If there are 80 marbles, and Raquel has collected 3/8 of them, he has collected 30

3 0

Raquel collected 30 marbles.

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nalin [4]

Steps:

Writing down the equation. x^2 + 1 = 0.
Subtract 1 from both sides. x^2 = -1
Square root (I am going to use the abbreviation sqrt) on both sides. x = sqrt (-1)
sqrt (-1) is simplified as i (or imaginary number). Because of the sqrt, it would be plus or minus.
(x+i)(x-i) is your answer. If you are in a lower math class (mentioning 10th grade or below), you should just put no solution.

5 0

3 years ago

erma4kov [3.2K]

*see attachment for the figure referred to

Answer:

4 units

Step-by-step explanation:

Given that $tan(f) = \frac{2}{1}$ , therefore, it follows that: