Please take just a few seconds longer and write "inverse cosine" as either:
arccos x or
-1
cos x or
cos ^(-1) x
A is true, since for any given x in [0, pi], there is exactly one associated y-value.
C is false. For one input (x) value, there is more than 1 associated y-value.
Answer:
x < -12
General Formulas and Concepts:
<u>Pre-Algebra</u>
Step-by-step explanation:
<u>Step 1: Define</u>
-6x > 72
<u>Step 2: Solve for </u><em><u>x</u></em>
- Divide -6 on both sides: x < -12
Here we see that any value <em>x</em> smaller than -12 would work as a solution to the inequality.
4x + 8(3x-7) = 22x -65 distributive property
4x +24x -56 = 22x -65distributive property
28x -56 = 22x -65 additive property
6x = -9 subtractive property
x = -3/2 division
Answer:
The ratio is 4:12:15.
Step-by-step explanation:
we need to make the first ratio (Sylvia's to John's) comparable to second one (John's to Peter's). Since John is in both ratios, we use his number to make it the same. 3 and 4 can both be multiplied into 12. So, multiply the first ratio by 4 and the second by 3.
Put it together, and you get 4:12:15.
Hope it helps :P