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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>
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Need help!
Maslowich
Answer: Choice D) |K| = 57

------------------------------------------------------

Explanation:

The notation |K| means "the number of items in set K". It is similar to the notation n(K). In this case, we simply add up all the values in the circle labeled K. There are four of these values which are 13, 8, 17, 19. Add up these values to get 13+8+17+19 = 57. So there are 57 items in set K.
4 0
3 years ago
A friend makes three pancakes for breakfast. One of the pancakes is burned on both sides, one is burned on only one side, and th
Semmy [17]

Answer:

50%

Step-by-step explanation:

Given that one side of the pancake is burned. The pancake you were served cannot be the one that is not burned on either side. Therefore, you were either served the pancake burned on both sides, or the pancake that was only burned in one side. Thus, there is a 50% percent chance that the other side is also burned.

7 0
3 years ago
A triangle has two sides of length 0.6 and 1.6. what compound inequality describes the possible lengths for the third side, x?​
Leona [35]

Step-by-step explanation:

two sides of length =0.6 and 1.6

lengths for the third side,X =?

= 0.6+1.6=2.2

lengths for the third side of X=2.2

6 0
3 years ago
Write a polynomial in standard form with the zeros -4,0, 1, and 4.
gavmur [86]

Answer: x^4-x^3-16x^2+16x

Step-by-step explanation:

Factor theorem : If x=a is a zero of a polynomial p(x) then (x-a) is a factor of p(x).

Given: Zeroes of polynomial : -4,0, 1, and 4.

Then Factors = (x-(-4)), (x-0), (x-1) and (x-4)   [By factor theorem ]

=(x+4), (x-0), (x-1) and (x-4)

Multiplying these factors to get polynomial in standard form.

(x+4)\times(x-0)\times(x-1)\times(x-4)  \\\\= x(x+4)(x-4)(x-1)\\\\= x(x^2-4^2)(x-1)\\\\= x(x^2-16)(x-1)\\\\= x(x^2-16)(x-1)\\\\=x(x^2x+x^2\left(-1\right)+\left(-16\right)x+\left(-16\right)\left(-1\right))\\\\= x(x^3-x^2-16x+16)\\\\=x^4-x^3-16x^2+16x

Hence, B is the correct option.

8 0
3 years ago
Estimate to 7.864 times 3.29
tankabanditka [31]
I will answer in 30 min
3 0
3 years ago
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