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zhenek [66]
3 years ago
8

Make b the subject of this equation A = 1/2 x b x h

Mathematics
1 answer:
aalyn [17]3 years ago
8 0

The equation is b=\frac{2A}{h}

Step-by-step explanation:

Let us revise how to make a variable subject of an equation

  1. Write the equation and circle the variable you want to make it subject
  2. Keep it in one side and move all other in the other side
  3. Make the coefficient of the subject 1

∵ A = \frac{1}{2} × b × h

∵ b is the subject

∴ Multiply the two sides by 2

∴ 2A = b × h

- Divide both sides by h

∴ \frac{2A}{h}= b

- Switch the two sides

∴ b=\frac{2A}{h}

The equation is b=\frac{2A}{h}

Learn more:

You can learn more about the equations in brainly.com/question/10708697

#LearnwithBrainly

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Mark the statements that are true.
lara [203]

Answer:

Correct answers:

A. An angle that measures \frac{\pi}{6}  radians also measures  30^o

C. An angle that measures 180^o  also measures \pi  radians

Step-by-step explanation:

Recall the formula to transform radians to degrees and vice-versa:

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Therefore we can investigate each of the statements, and find that when we have a \frac{\pi}{6}  radians angle, then its degree formula becomes:

\angle\,degrees=\frac{180^o}{\pi} \,* \,\angle radians\\\angle\,degrees=\frac{180^o}{\pi} \,* \,\frac{\pi}{6} \\\angle\,degrees=\frac{180^o}{6} \\\angle\,degrees=30^o

also when an angle measures 180^o  , its radian measure is:

\angle\,radians=\frac{\pi}{180^o} \,* \,\angle degrees\\\angle\,radians=\frac{\pi}{180^o} \,* \,180^o\\\angle\,radians=\pi

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7 0
3 years ago
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marishachu [46]

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Step-by-step explanation:

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Hello!

Let's multiply each thing here.

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Therefore, her change is $29.

I hope this helps!

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