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Amanda [17]
4 years ago
14

Is scale drawings and dilations similar? If so, how?

Mathematics
1 answer:
marshall27 [118]4 years ago
4 0
A<span> <span>dilation </span></span><span><span>is a transformation that produces an image that is the </span><span>same shape </span><span>as the original, but is a </span><span>different size<span>.   </span></span>A dilation stretches or shrinks the original figure.   <span> 
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</span></span><span>http://www.virtualnerd.com/middle-math/ratios-proportions-percent/scale-drawings-models/scale-drawin...
^^^^^
will help</span>
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  1. Function
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Explanation:

If x repeats itself, then we don't have a function. For instance, relation 2 has the x value -4 show up twice. That input leads to multiple outputs which is why we don't have a function. Relation 4 is a similar story (this time the input 'u' shows up twice).

Relations 1 and 3 don't have this issue, so they are functions.

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A person invest $3000 in a bank the bank pays 6.75% interest compounded semi annually to the nearest 10th of a year how long mus
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Answer:

It would take 12.1 years.

Step-by-step explanation:

We are given with $3000 invested in bank pays 6.75% interest compounded semi annually to the nearest 10th. We are asked to find the number of years the bank reaches $6700.

Let's use the compound interest formula.

A= P(1+\frac{r}{n}) ^{nt}

We know A=6700

P=3000

r =0.0675

n=2(because compounded semiannually)

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Plug in the known values into the formula.

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2.23333= (1.03375)^{2t}

Take log on both sides

log(2.23333) = 2t log(1.03375)

Divide both sides by log(1.03375)

24.2067=2t

Divide both sides by 2.

t=12.10...

To round to nearest 10th, we get t=12.1 years.

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