If a diagram has a scale of 1:100, that means that the real thing is 100 times larger. To find how long the real thing is, that means that we need to multiply the length on the diagram by 100. 100 * 15 is 1500. But, that is 1,500 cm. To convert it into meters, we need to divide by 100. That's because there's 100 centimeters in every meter. 1500/100 is 15, which means that the actual length of the car park is 15 meters.
I'll assume those are squares. We know D is an identity:
Dividing through by
That's A.
Dividing the original through by
Not quite B, wrong sign on tangent.
C has the wrong sign on cosine squared as well.
Identities: A & D
The factors of 100 are 1, 2<span>, 4, </span>5<span>, 10, 20, 25, 50 and 100. To find the </span>prime factorization<span>, first take any </span>two<span> of the factors that multiply to make 100. For instance, 25 x 4 = 100. Neither 25 nor four is a </span>prime number<span>, so each must be broken down further
There you go =)</span>
A. 30% is the correct. .30 is 30%
