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kow [346]
3 years ago
12

Does anyone have the answers for this?!

Mathematics
1 answer:
geniusboy [140]3 years ago
7 0

We don't need the answers.  Let's do the problems.

In triangle ABC with sides a,b,c labeled in the usual way, the Law of Sines is

\dfrac{\sin A}{a} = \dfrac{\sin B}{b} = \dfrac{\sin C}{c}

Side a is opposite vertex A, etc.

1. A=46, B=29, a=x, b=5

a/sin A = b/sin B

a = b(sin A)/sin B

x = (5) sin 46 / sin 29 = 7.41878636786

Answer: x=7.4

2.  We don't have to spell it all out with a, b and c.

x/sin 65 = 22/sin 53

x = 22 (sin 65)/sin 53 = 24.96604654309146

Answer: x=25.0

3. x/sin 15 = 12/sin 128

x = 12 sin 15/sin 128 = 3.941352991713482

Answer: 3.9

4. x = 18 sin 73 / sin 59 =  20.081827192002002 = 20.1

5. Trickier, we need the missing angle 180-19-26=135

x = 32 sin 19 / sin 135 = 14.73353278 = 14.7

6. 180-78-75=27

x = 28 sin 27 / sin 75 = 13.16015541 = 13.2

7. 180-51-70=59

x = 9 sin 59 / sin 70 = 8.20960549830328 = 8.2

8. 180-52-33=95

x/ sin 33 = 16/sin 95

x = 16 sin 33 / sin 95 = 8.747511482 = 8.7

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Evaluate the following expressions if ×=2,y=3 and Z=4. a.4×+×-3over ×+10 b.2y-5yover y+5. c.yz-×. d.9+y+zover y+2​
sammy [17]

Answer:

A= 7 11/12 or 7.916 or  95.12

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When a bakery opened this morning the ratio of pineapple muffins to the number of mango muffins was 3:2. After 144 pineapple muf
Elena L [17]
3x-\ pineapple\\
2x-\ mango\\\\
after\ selling\ 144\ pineapple:\\
3y-\ pineapple\\
5y-\ mango\\\\
3x-144=3y\ \ | add\ 144\\
2x=5y\\\\
3x=3y+144\ \ \ | divide\ by\ 3\\
2x=5y\\\\
x=y+48\\2x=5y\\\\
2(y+48)=5y\\
2y+96=5y\ \ \ | subtract\ 2y\\
96=3y\ \ \ | divide\ by\ 3\\
32=y\\
x=32+48=80\\\\
There\ were\ 240\ pineapple\ muffins.

6 0
3 years ago
In 2010, the population of a city was 241,000. From 2010 to 2015, the population grew by 5%. From 2015 to 2020, it fell by 4%. T
lawyer [7]

Answer:

242, 900 people

Step-by-step explanation:

To begin, it says that the population grew by 5%.

(241000)(1.00 + 0.05) = <em>population of the city in 2015</em>

(241000)(1.05) = 253050

253050 is the population of the city in 2015. From 2015 to 2020 it fell four percent.

(253050)(1.00 - 0.04) = <em>population of the city in 2020</em>

(253050)(0.96) = 242928

242928 is the exact population of the city. However, it says to round to the nearest hundred. Since 28 is less than 50, then it would round down to 900.

Therefore, the answer would be 242, 900 people.

4 0
3 years ago
At a water park, 27 out of 90 tickets sold were child tickets. what percentage of the tickets were child tickets?
Alik [6]
You do 27 divided by 90 27/90=0.3 and then move the decimal two places which would give you 30%
3 0
3 years ago
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