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Vikki [24]
3 years ago
9

I don't know what the answer is.

Mathematics
2 answers:
Ksenya-84 [330]3 years ago
6 0

Answer:

C.) 87

Step-by-step explanation:

if you look at it from the other side, its counting down from 91 from the left.

professor190 [17]3 years ago
4 0

Answer: 87

No explanation :)

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Answer:

2/1 or 2

Step-by-step explanation:

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3 years ago
A school gives awards in five subjects to a class of 30 students but no one is allowed to win more than one award. how many outc
kupik [55]
6 cause u have to multiply 30 and 5
6 0
3 years ago
A surveyor leave her base camp and drive 42 km on a bearing of 032, she then drive 28km on a bearing of 154.How far is she then
aleksklad [387]

Answer:

Step-by-step explanation:

The scenario is represented in the attached photo. Triangle ABC is formed. AB represents her distance from her base camp. We would determine BC by applying the law of Cosines which is expressed as

a² = b² + c² - 2abCosA

Where a,b and c are the length of each side of the triangle and B is the angle corresponding to b. It becomes

AB² = AC² + BC² - 2(AC × BC)CosC

AB² = 42² + 28² - 2(42 × 28)Cos58

AB² = 1764 + 784 - 2(1176Cos58)

AB² = 2548 - 1246.37 = 1301.63

AB = √1301.63

AB = 36.08 km

To find the bearing, we would determine angle B by applying sine rule

AB/SinC = AC/SinB

36.08/Sin58 = 42/SinB

Cross multiplying, it becomes

36.08SinB = 42Sin58

SinB = 42Sin58/36.08 = 0.987

B = Sin^-1(0.987)

B = 81°

Therefore, her bearing from the base camp is

360 - 81 = 279°

8 0
2 years ago
If the sin 30° is 1 over 2, then the cos ____° = _____. (4 points) 60° ; 1 over 2 30° ; square root 2 over 2 60° ; square root 3
umka21 [38]

Step-by-step explanation:

\sin 30 \degree =  \cos 60 \degree = \frac{1}{2}  \\

5 0
2 years ago
Read 2 more answers
Please help!!! Thank you!!!
Bess [88]

Answer:

1.  180°   ∑triangle angles=180°

2. 2x

3. 52°

5 0
2 years ago
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