A grocery store offers a 15% discount on your entire purchase when you spend more than $60. You have $85 to spend on groceries a
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The length of b and angle B and C are 3cm, 45 degrees and 79 degrees respectively.
<h3>How to determine the parameters</h3>To determine the angles and length of sides, we use the sine rule
The sine rule is thus:
Given;
- a = 2. 5cm
- c = 3. 6cm
- ∠A = 43°
Let's find angle C
cross multiply
0. 682 × 3. 6 = sin C × 2. 5
sin C = 2. 4552/ 2. 5
C =
C = 79°
To find length of b
substitute the values
b = 2. 59 cm
b = 3cm
To find angle B, we have
cross multiply
0. 682 × 2. 59= sin B × 2. 5
sin B = 0. 7065
B = 45°
Hence, the length of b and angle B and C are 3cm, 45 degrees and 79 degrees respectively.
Learn more about sine rule here:
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Answer:
- £5200.68
Step-by-step explanation:
<u>Given:</u>
- Investment P = £4900
- Interest rate r = 1.5% or r = 0.015
- Time t = 4 years
- Number of compounds per year n = 1
<u>Find the future amount:</u>