It contains 160 grams of Zinc. Given that, the ratio of Cooper is 19 to Copper grams of 760 grams. Divide 760 grams by 19 equals 40. Then just multiple 40 by the ratio of Zinc given of 4. Leading to an answer of 160 grams of Zinc.
Answer:
13) B
14) A
Step-by-step explanation:
13) Knowing that the interior angles of a triangle add up to 180, we can see that angle A is 53°. To find length c, we can use either sine or cosine. Let's use sine:
sin 37° = b/c = 15.9/c ---> c = 15.9/sin 37 = 26.4
To solve for side a, use cosine:
cos 37° = a/26.4 ---> a = 26.4cos37 = 21.1
14) Again, knowing that the interior angles of a triangle add up to 180, we know that angle B is 52°. This time,let's use cosine (although you may choose sine if you want):
cos 38° = b/16 ---> b = 16cos38 = 12.6
To find side a, use sine:
sin 38° = a/16 ---> a = 16sin38 = 9.9
Answer:
A
Explanation:
The whole numbers are the numbers that we use to count like 1, 2, 3, ...
Then, integer numbers are the set that contains the whole numbers and the negative numbers, so the integer number are like ... -3, -2, -1, 0, 1, 2, 3, ...
Therefore, -648 is an integer number.
Finally, the rational numbers are numbers that can be written as a/b, where a and b are integers.
So, the answer is A because rational numbers contain integer numbers, integer numbers contain whole numbers and -648 is a integer number.
I think its 8 because 64 divided by 8 is 8.
