8+8i
9514 1404 393
Answer:
45. (8√2)∠π/4
46. (7√2)∠3π/4
Step-by-step explanation:
The polar form of a+bi is ...
a +bi ⇔ (√(a²+b²))∠arctan(b/a)
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45. 8 +8i = (√(8² +8²))∠arctan(8/8) = (8√2)∠π/4
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46. -7 +7i = (√((-7)² +7²))∠arctan(7/-7) = (7√2)∠3π/4
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Additional comment
The arctan function usually returns a value in the range -π/2 to π/2. The quadrant of the desired result can be determined by the signs of the components of the vector. For negative real parts, π needs to be added to the value that is usually returned by the arctan function.
The probability of pulling out a green ball without looking is 3/8 or 0.375 as a decimal of the given problem there are 8 tennis balls in a bag.five of the balls are yellow and the other 3 are green
To find the probability of pulling out a green ball without looking, we need to determine the ratio of green balls to the total number of balls in the bag.
Given that there are 8 tennis balls in total, with 3 of them being green, the probability can be calculated as:
Probability = Number of green balls / Total number of balls
Probability = 3 green balls / 8 total balls
Simplifying this fraction, we have:
Probability = 3/8
Therefore, the probability of pulling out a green ball without looking is 3/8 or 0.375 as a decimal.
Learn more about probability here:
#SPJ2
Answer:
You will wrapping paper to cover the box.
Step-by-step explanation:
To find how much wrapping paper you will need to cover the box, you will have to find the surface area.
The surface area is the amount of area around the outside of an object.
The outside surface area of a box is given by
where h is the height, W is the width, and L is the length of the box.
From the information given we know that the height is 5 inches, the width is 9 inches, and the length is 12 inches.
Applying the above formula we get that
You will wrapping paper to cover the box.
pleaseeeee
Answer:
good point I don't know that either
Answer:
hey. pls complete your question.
Answer:
SAS
Step-by-step explanation:
You have two pairs of congruent sides that are congruent.
The included angles are vertical angles, so they are congruent.
That means you have two sides and the included angle in each triangle.
Answer: SAS