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2 years ago

This question consists of 2 parts, a and b.

Mathematics

1 answer:

Svetlanka [38]2 years ago

4 0

Answer:

A: 700
B: he put the decimal point in the wrong place

Step-by-step explanation:

Part A: The problem 49/0.07 can be rewritten as 4900/7 by multiplying numerator and denominator by 100. Then it is more clear that the correct answer is (49/7)×100 = 700.

___

Part B: I've always had trouble reading Marco's mind, so I cannot tell you what mistake he made. I can tell you the decimal point in his result is in the wrong place.

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vekshin1

Answer:

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The sum of the angles of any triangles is 180°. We know the measures of the two other angles. So we subtract them from 180° to find that third angle.

180° - 76° - 66° = 38°

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----------- = -----------

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Cross multiply to find b (the side). We carry out five places in these calculations to get more accuracy.

3 * sin 76° = b * sin 38°

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--------------- = --------------- = ---------------- = 5.73044

sin 38° 0.29636 0.29636

To the nearest tenth, b - 5.7 units.

Step-by-step explanation:

google hope this helps

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2 years ago

Six times a number x and was added to 90 and the result is -42. What is the number

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According to the question,

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<h3>Solution:</h3>

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<h2>Answer:</h2>

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Ok

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set y=0
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use quadratic formula
if you have ax^2+bx+c=0, then
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3 years ago