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Sauron [17]
3 years ago
5

2. Simplify the expression 3(-2p -r +5) - (4p + 2r - 9).

Mathematics
1 answer:
yanalaym [24]3 years ago
5 0

Answer:

-10p-5p+24

Step-by-step explanation:

-6p-3r+15-4p-2r+9

-10p-5p+24

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4(x+2)+3(2x +5) simplify your answer
denpristay [2]

Answer:

Step-by-step explanation:

4(x+2)+3(2x+5)

4x+8+6x+15

10x+23

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3 years ago
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The faces of triangular pyramid have a base of 5cm and a height of 11cm what is the lateral area of the pyramid
prisoha [69]

Answer:

55cm

Step-by-step explanation:

11 x 5 = 55, so the area of the pyrmid is 55cm.

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When a stepladder is placed as shown, is it possible for the lower ends of the ladder to be 12 feet apart? Explain​
nataly862011 [7]

Answer:

No, with the guides in between the two ladders, it is not possible for the lower ends of the ladder to be up to 12 feet apart

Step-by-step explanation:

The given parameters are;

The length of two sides of the step ladder = 12 feet

The maximum value allowable for the included angle between the two 12 feet ladders = 58°

Therefore, the maximum value of the third side facing the included angle is given as follows;

let "a" represent the maximum value of the third side formed by the distance apart of the lower end of the ladder, by cosine rule, we have;

a² = 12² + 12² - 2 × 12 × 12 × cos(58°) = 135.383251901

∴ a = √(12² + 12² - 2 × 12 × 12 × cos(58°)) ≈ 11.64

The maximum value of the third side formed by the distance apart of the lower end of the ladder = a ≈ 11.64 feet < 12 feet

Therefore, it is not possible for the lower ends of the ladder to be up to 12 feet apart.

5 0
3 years ago
Write an equation of the line that passes through (0, 3) and (−5, 2.5)
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Answer:

y=.1x+3 I think that is the answer

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