<u>Answer:</u>
<u>ratios equivalent to 1/3=2/6,3/9</u>
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<u>Step-by-step explanation:</u>
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<u>Double number line is a diagram used when. quantities have different units.</u>
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<u>It shows each of the quantities on its own number line with corresponding pairs of values lined up.The values of each number line are not the same unless there is a 1:1 ratio between them.</u>
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<u>some ratios equivalent to 1:3 are;</u>
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<u>2:6,3:9,4:12,5:15,6:18,7:21,etc</u>
Answer:
A). X = -3
Step-by-step explanation:
Step 1: Add 20 to both sides.
Step 2: Divide both sides by 7.
Step 3: Check if solution is correct.
Answer:
see explanation
Step-by-step explanation:
Using the Addition/ Subtraction formulae for cosine
Consider the left side
cos(x - y) - cos(x + y)
= cosxcosy + sinxsiny - (cosxcosy - sinxsiny) ← distribute
= cosxcosy + sinxsiny - cosxcosy + sinxsiny ← collect like terms
= 2sinxsiny = right side ⇒ proven
The answer would be ~30~ because 2*2^3 = 2^4= 16 then 3*6=18 then 16+18-4=30
Hope this helps
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