A, C, and E
Any numbers that, when multiplied, produce the number 7.82 have the same value as 2.3 * 3.4. Some numbers include 2 * 3.91 and 17 * 0.46. A, C, and E, when simplified all equal 7.82
Cos 157.5º=-cos (180º-157.5º)=-cos 22.5=-cos(45/2)
cos Ф/2=⁺₋√((1+cosФ)/2).
In this case 157.5º is in the second quadrant, therefore we use the following equation:
cos Ф/2=-√((1+cosФ)/2). (we will have a negative number)
cos 157.5º=-cos (45/2)=-√((1+cos 45º)/2)
=-√((1+√2/2)/2)
=-√((2+√2)/4)
=-√(2+√2) / 2 (≈-0.92387...)
Answer: cos 157.5º= -√(2+√2) / 2
If I understand the question correctly, the answer should be A. A fraction can really look like anything, larger numbers over smaller, or smaller over larger. No different when you are dividing two fractions.
Answer:
592
Step-by-step explanation:
Kelby drank 168 glasses of water per week
i.e 24 glasses per day
Since 8 eight-ounce glass of water is for every 50 pounds.
1 eight-ounce glass is for = 50/8 pounds
and 24 glasses of water is for = 50*24/8
= 150pounds
So kelby probably weighs 150 pounds
