Please help help help

Answers

Answer 1

Answer: Just perform the given functions:(x+7)/x=1+ 7/x
Correct answer is: C

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What’s the complex number in polar form with argument theta between 0 and 2pie?
8+8i

Answers

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)

45. 8 +8i = (√(8² +8²))∠arctan(8/8) = (8√2)∠π/4

46. -7 +7i = (√((-7)² +7²))∠arctan(7/-7) = (7√2)∠3π/4

_____

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.

there are 8 tennis balls in a bag.five of the balls are yellow and the other 3 are green, what's the probability of pulling out a green ball without looking? write your answer as a decimal

Answers

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:

brainly.com/question/28369642

#SPJ2

I think
3/8 = 0.375
3 divide by 8 = 0.375

A rectangular gift box is 9inches inches wide, 12 inches long and 5 inches tall. How much wrapping paper is needed to cover the box exactly

Answers

Answer:

You will $426 \:in^2$ 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

$S=2(h \cdot W) + 2(h\cdot L) + 2(W \cdot L)$

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

$S=2(5 \cdot 9) + 2(5 \cdot 12) + 2(9 \cdot 12) \nS=2\cdot \:45+2\cdot \:60+2\cdot \:108\nS=90+120+216\nS=426 \:in^2$

You will $426 \:in^2$ wrapping paper to cover the box.

Ik desperate please help the question is: how many times more people will there be in the town after 15 years than after 10 years??? I need help ASAP!??!?!?!?!? 20 points?!?!?!!
pleaseeeee