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marusya05 [52]
3 years ago
14

What's the recommend amount of UV protection that sunglasses should provide?

Mathematics
2 answers:
BabaBlast [244]3 years ago
7 0
They should screen out 99 to 100 percent of uv rays. Hope this helps!
olga55 [171]3 years ago
6 0
Sunglasses that block 100 percent<span> of the harmful UV and have good optical quality.</span>
You might be interested in
S KM ∥ JN? Why or why not?
bixtya [17]

Given: We have the given figure through which we can see

LK=16,

KJ=10,

LM=24,

MN=15

To Find: Whether KM || JN and the reasoning behind it.

Solution: Yes, KM || JN because \frac{16}{10}= \frac{24}{15}

Explanation:

For this solution, we use the concept of Similar Triangles.

Now, KM || JN if ΔLKM ~ ΔLJN (i.e., if ΔLKM is similar to ΔLJN).

Now, ∠MLK=∠NLJ

To prove similarity of the two triangles, we have to show that the sides are proportional. In other words, LK:KJ = LM:LN

LK:KJ=LM:LN\\\\ \frac{LK}{KJ} =\frac{LM}{LN}\\\\\frac{16}{26}= \frac{24}{39}\\\\

which is true as both sides simplify to \frac{8}{13}

Thus, we see that ΔLKM ~ ΔLJN (i.e., if ΔLKM is similar to ΔLJN).

Therefore, KM || JN.

To come to the reasoning, notice that

\frac{LK}{LJ} =\frac{LM}{LN}\\\\\frac{LK}{LK+KJ} =\frac{LM}{LM+MN}\\\\\frac{LK+KJ}{LK} =\frac{LM+MN}{LM}\\\\1+\frac{KJ}{LK}=1+ \frac{MN}{LM}\\\\\frac{LK}{KJ} =\frac{LM}{MN}

In other words, \frac{16}{10}= \frac{24}{15}


4 0
3 years ago
Read 2 more answers
Max invests some money in a savings bond.
Mars2501 [29]

Answer:

£5650

Step-by-step explanation:

The money max invested in the saving bond = x

After one year the intrest will be 2% of x

Amount = £5763

Amount = Principcal + Interest

= £5763 = x + 2% multiplied x

£5763 = x + 2x/100

= 50x/50 + x/50 = 5763

= 51x/50 = £5763

51x = 5763x50

51x = 288, 150

x = 288,150/51

x = 5650

So the money max invested = £5650

7 0
2 years ago
ms. ling's cooking class made 3 gallons of blackberry jam and 14 cups of strawberry jam. how many cups of jam did the class make
PtichkaEL [24]
1 gallon=16 cups
3 times 16=48

plus 14 mroe
48+14=62 cups total
4 0
3 years ago
What is <br> 6 3/5<br><br> Write your answer as a mixed number.
galina1969 [7]

Answer:

33/5

Step-by-step explanation:

6 3/5 = 33/5

6 x 5 = 30

30 + 3 = 33

33/5.

4 0
2 years ago
Read 2 more answers
PLEASE HELP NOW!!!!!!
34kurt

Answer:

Mass and volume

Step-by-step explanation:

Formula Density=Mass/Volume

6 0
2 years ago
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