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Charra [1.4K]
3 years ago
15

What is 2+2-1+4-2+1-5+20 -Quick Maths

Mathematics
2 answers:
Anton [14]3 years ago
7 0
The answer would be 21
garik1379 [7]3 years ago
7 0
The answer for this question is 21
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The sum of the​ length, width, and height of a rectangular package is 126 inches. If the length is 2 inches longer than five tim
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Answer:

Step-by-step explanation:

The length and the width are based on the height.

height: h

length: 5h + 2

width: 3h - 2

If the sum of those is 126, then:

h + 5h + 2 + 3h - 2 = 126 and

9h = 126 so

h = 14

length is 5(14) + 2 which is 72

width is 3(14) - 2 which is 40

The volume is found by multiplying the length times the width times the height:

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<h2><u><em>66,130</em></u></h2>

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a ladder leans against the sufe of a house. the angle of elevation of the ladder is 70 degrees when the bottom of the ladder is
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≈ 35.1 ft

Step-by-step explanation:

The model is a right triangle with ladder being the hypotenuse and the angle between the ground and the ladder is 70°

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cos70° = \frac{adjacent}{hypotenuse} = \frac{12}{l} ( multiply both sides by l )

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The ladder is approx 35.1 ft long

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