3 years ago

Consider this expression:

Mathematics

2 answers:

Ivenika [448]3 years ago

8 0

Answer:

-5+-2=-7

3-4=-1

answer is -7x+1

Rashid [163]3 years ago

4 0

Answer:

-7

Step-by-step explanation:

3 – 4 = –1

–5x – 2x = x

–5x – 2x = -7x

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If Marie were to paint her living room alone, it would take 7 hours. Her sister Barbara could do the job in 8 hours. How many ho

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Answer:

$\sf\longmapsto \: 3.73 hours$

Step-by-step explanation:

$\sf\longmapsto \: \frac{1}{7 } + \frac{1}{8}$

$\sf\longmapsto \: \frac{15}{56}$

Now, Reciprocal–

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3 years ago

Evaluate each expression. 8/7 + 4/7

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Answer:

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Step-by-step explanation:

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3 years ago

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A [2 -62] is the correct answer

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3 years ago

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nirvana33 [79]

Answer:

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Q3: 168

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Step-by-step explanation:

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3 years ago

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A forestal station receives the locations of two fires, one of them in a forest located 11 Km heading N69°W from the station. Th

loris [4]

Answer:

30.7 km

Step-by-step explanation:

The distance between the two fires can be found using the Law of Cosines. For ΔABC in which sides 'a' and 'b' are given, along with angle C, the third side is ...

c = √(a² +b² -2ab·cos(C))

The angle measured between the two fires is ...

180° -(69° -35°) = 146°

and the distance is ...

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3 years ago