Answer:
15 ft.
Step-by-step explanation:
the ratio of the real room to the blueprint is 21/3.5, which simplifies to 6.
You have to multiply 6 by 2.5 to get 15
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;
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:
brainly.com/question/12827625
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Answer:1.04%
Step-by-step explanation:
12.5/12 = 1.04166667
when we round this to the nearest hundredth its 1.04%
Each is 30° because you do 90/3 is 30
Answer:
In 10 minutes, he could type 510 words
Step-by-step explanation:
153/3=51 51 words a minute 51 times 10=510