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stiv31 [10]
3 years ago
15

Which of the following values represents an index of refraction of an actual material? A. 1.25 B. 0 C. .25 D. .5

Mathematics
1 answer:
Artist 52 [7]3 years ago
6 0
A is your answer .-.
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The bike store marks up the wholesale cost of all of the bikes they sell by 30%.
Dmitrij [34]

Answer:

Suppose that the wholesale of a bike is A (A is the 100% in this case). If we have an increase of 30% for the sale price, we have the new price of:

Price = A + (30%/100%)A = A + 0.3*A = (1.3)*A

Then if we know that the price tag of the bike is $125, then we have:

$125 = (1.3)*A

$125/1.3 = A = $96.15

The wholesale cost of the bike is $96.15

6 0
3 years ago
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Any help at all would be deeply appreciated. i am DESPERATE
Lana71 [14]
The answers are C and D.
6 0
3 years ago
What is the 32nd term of 311, 305, 299
nata0808 [166]

Answer:

503

Step-by-step explanation:

For an arithmetic sequence, the n-th term is found by

a_n = a_1 + (n - 1)d

To find d (the common difference) we can simply subtract one of the terms by the last, for example:

d = 299 - 305 \\d = -6 \\

The common difference must be the same throughout the entire sequence, so we can do it once more just to be sure:

d = 305 - 311\\d = -6

We also have to know that a_1 stands for the first term of the sequence, which in this case is 311.

Now that we know this, let's find the 32nd term

a_{32} = 311 + (32 - 1)-6\\a_{32} = 311 + 192\\a_{32} = 503

Good luck!

4 0
3 years ago
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The vertices of ABC are A(2, -3), B(-3,-5), and C(4,1). For each translation,
Snezhnost [94]

Answer:

all of ABOVW

Step-by-step explanation:

6 0
3 years ago
A gazelle can change its speed from 0 to 45 mph in 2 seconds. What is the gazelle's acceleration?
Alex787 [66]

Answer:

average acceleration a=change in velocity / time it took to get to velocity  

a=(45-0)mph / 2s = 22.5 mph/hr/s

Step-by-step explanation:


3 0
3 years ago
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