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Oksanka [162]
3 years ago
12

The length of a rectangle is 45 inches and the width is 8 inches. A similar rectangle has a width is 24 inches what is the perim

eter of the second rectangle?
Mathematics
2 answers:
Irina-Kira [14]3 years ago
8 0
The perimeter of the second rectangle would be 135.
Leona [35]3 years ago
7 0
The answer would be 135
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I am leaning pre-cal right now and I don't understand it. I did arctan (3/-5) but got it wrong, how do you do this?
Gemiola [76]

9514 1404 393

Answer:

  149.04°

Step-by-step explanation:

You must consider the signs of the components of the vector. The value -5+3i will be in the 2nd quadrant of the complex plane.

When you use the single-argument arctan function, it will tell you the angle is -30.96°, a 4th-quadrant angle. (arctan( ) is only capable of giving you 1st- or 4th-quadrant angles.)

You find the 2nd-quadrant angle by adding 180° to this value:

  -30.96° +180° = 149.04° = arg(-5+3i)

__

The attachments show the calculation using a suitable calculator (1st) and a spreadsheet (2nd). The spreadsheet function ATAN2(x,y) gives the 4-quadrant angle in radians, considering the signs of the two arguments. Here, we converted it to degrees. The calculator can be set to either degrees or radians.

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3 years ago
There are three consecutive integers. The product of the first and the last is 35 more than 5 times the second number. Find thes
mamaluj [8]

Answer:

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Step-by-step explanation:

Let x-1, x and x+1 be the consecutive integers

(x-1)(x+1) = 5x + 35

x² - 1 - 5x - 35 = 0

x² - 5x - 36 = 0

x² - 9x + 4x - 36= 0

x(x - 9) + 4(x - 9) = 0

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x = 9, -4

7 0
3 years ago
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Answer:

b+3 or 3+b

Step-by-step explanation:

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Answer: Hope This Helps!

Step-by-step explanation:

Use the distance formula to calculate the side length of each side of the triangle. If any 2 sides have equal side lengths, then the triangle is isosceles.

More precise info: Given the coordinates of the triangle's vertices, to prove that a triangle is an isosceles plot the 3 points (optional) use the distance formula to calculate the side length of each side of the triangle. If any 2 sides have equal side lengths, then the triangle is isosceles.

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A bag contains 8 red m&amp;m's, 3 brown m&amp;m’s, and 7 green m&amp;m’s. Draw one m&amp;m what’s the probability of drawing a b
Alekssandra [29.7K]

Answer:

8+3+7=18

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\frac{3  }{18 }

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2 years ago
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