3 years ago

Estimate the sum or difference 1/2 - 1/3

Mathematics

2 answers:

valina [46]3 years ago

7 0

1/6 would be the answer.

vekshin13 years ago

3 0

1/6 :)) I hope this helped! There is also an app called "photomath" that does the problem for you!

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Montano1993 [528]

the answer is c i used a algebra calculator

7 0

3 years ago

If c=25 and B=75 degrees, find a. Round to the nearest tenth.

worty [1.4K]

Answer:

a=6.9

Step-by-step explanation:

Since you know that C is a right angle, you can use the Law of Sines to find a. The first step is to find the size of the angle A, which is 180-74-90=16. Now, you set up a ratio that involves 3 knowns and one unknown to get $\frac{\sin(90^\circ)}{25} = \frac{\sin(16^\circ)}{a}$ , which after cross multiplying yields $a=\sin(16^\circ)\cdot25\approx 6.9$ . PM me if you have any questions?