Answer:
2. tan 280°
3. -tan 80°
Step-by-step explanation:
Your calculator can help you figure this out.
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The tangent function is periodic with a period of 180°, so tan(100°) will be equal to tan(100°+k·180°) for any integer k. Answer choices include k values of ±1, so two of them are correct:
- tan(100°) = tan(100° -180°) = tan(-80°)
- tan(100°) = tan(100° +180°) = tan(280°)
(1) FOUR LESS THAN THE PRODUCT OF 4 AND A NUMBER is 4x - 5 = 5
(2) THE PRODUCT OF FOUR AND THE DIFFERENCE OF A NUMBER AND FIVE is 4 (x-5)
(3) THE PRODUCT OF FOUR AND THE SUM OF A NUMBER AND FIVE is
4 (x+5)
Step-by-step explanation:
I don't understand the question
<span>x = Joe's age and </span><span>y = James's age
</span><span>Joe is 10 years older than James - equation - x = y + 10
</span><span>In 8 years twice Joe's age will equal three times James's age - equation -
2(x+8) = 3(y+8)
</span>
<span>2(x+8) = 3(y+8) </span>
<span>2(y + 10 +8) = 3(y+8) { substitute y + 10 for x </span>
<span>2(y + 18) = 3(y + 8) </span>
<span>2y + 36 = 3y + 24 </span>
<span>12 = y </span>
<span>Joe is 22 and James is 12.</span>
Answer:
f^-1 (x)=1/5x-4/5
Step-by-step explanation:
y=5x+4
x=5y+4
5y=x-4
y=1/5x-4/5
