Answer:
Step-by-step explanation:
<h3>Given</h3>
- a = 2i + 9j, b = –4i + 5j, c = i – 3j, d = 14j
<h3>To find</h3>
<h3>Solution</h3>
- (a – b) – (2d – c) =
- 2i + 9j - (–4i + 5j) - (2(14j) - (i – 3j)) =
- 2i + 9j + 4i - 5j - 28j + i - 3j =
- (2 + 4 + 1)i + (9 - 5 - 28 - 3)j =
- 7i + (-27)j =
- 7i - 27j
4/9 and 1/11
product means multiplying
4 times 1
4*1=4
9 times 11
9*11=99
answer: 4/99
For 3 the sides are going to be equal since the angles are equal, I’ll explain the comments
160% of 19 is 30.4
Convert 160 into a decimal: 160%/100 = 1.6
Multiply the decimal by 19: 1.6 × 19 = 30.4 <-- our answer.
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0.9% of 54 is 0.486
Convert 0.9% in a decimal: 0.9%/100 = 0.009
Multiply the decimal by 54: 0.009 × 54 = 0.486 <-- our answer.
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15% of 376 is 56.4
Convert the percentage into a decimal: 15%/100 = 0.15
Multiply the decimal by 376: 0.15 × 376 = 56.4 <-- our answer.