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sattari [20]
3 years ago
8

-((-7) +(4)(-12)+(-3)(11)+(-2))

Mathematics
2 answers:
Zolol [24]3 years ago
6 0

Answer:

90

Step-by-step explanation:

Recall Order of Operations rules that require that computations inside parentheses must be done first.  Next, multiplication be done before addition or subtraction.  

-((-7) +(4)(-12)+(-3)(11)+(-2))  can be re-written as

-            ((-7) +(4)(-12)+(-3)(11)+(-2)), which in turn becomes:

-( -7 - 48 - 33 - 2 ), or

-( -55 - 35), or

- (-90), or 90

lakkis [162]3 years ago
3 0

Answer:

<em>90</em>

Step-by-step explanation:

-((-7) + 4 × (-12) + (-3) × 11 + (-2))

-(-7 + 4 × (-12) + (-3) × 11 + (-2))

-(-7 - 48 - 33 - 2)

-(-90) → 90

Final Answer - 90

Hope this helped! :)

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Bezzdna [24]

Answer:

42.1

Step-by-step explanation:

The height of the main triangle is,

h = 47√3/2 (since it's an 30-60-90 triangle)

so to find x,

tan(44) = h/x

x = h/tan(44)

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Answered by GAUTHMATH

8 0
3 years ago
Christy drove 135 miles in 2.5 hours what was her average speed in miles per hour
vlada-n [284]
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I hope this helps!
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3 years ago
Help I'm not sure if this is the answer?<br><br> (This question is about trigonometric ratios)
dem82 [27]

9514 1404 393

Answer:

  (b) 15.32

Step-by-step explanation:

You can use your triangle sense to answer this.

The side x will always be shorter than the hypotenuse, 20. This eliminates the last two choices.

If the angle is 45°, then the sides are equal at about 0.707 times the length of the hypotenuse. That would make them 0.707×20 = 14.14. Since the angle is greater than 45°, the opposite side will be greater than 14.14. Only one answer choice fits between 14 and 20: the second choice -- 15.32.

__

The mnemonic SOH CAH TOA reminds you of the relation ...

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__

The attachment is intended to show how the triangle side lengths change with angle.

3 0
3 years ago
A system of linear inequalities is shown below:
Yuki888 [10]
The 4th selection is appropriate:
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3 years ago
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zzz [600]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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