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3 years ago

Maths makes me cry please help me LOL

Mathematics

2 answers:

fredd [130]3 years ago

6 0

To find BC:

• we can see that there is a right angle triangle

• to make it easier use the concept

SOH: Sine° = Opposite/ Hypo

CAH: Cos° = Adjacent/ Hypo

TOA: Tan° = Oppo / Adjacent

(look the CAPITAL letter there, it'll helps us later)

So, we are given: 16 (hypo)

we want to find BC : Opposite

WE HAVE (H) and (O) thefore we use SOH

sine 5° = BC/ 16

(then move 16)

sin 5° x 16 = BC

Answer: 1.3944.. (round off to 3 significant figures)

answer: 1.39m

shtirl [24]3 years ago

3 0

Answer:

i dont see a picture

Step-by-step explanation:

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2 years ago

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3 years ago

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3 years ago

Al saves pennies. He agreed to give 3/7 of his pennies to Bev if she would give 3/7 of what she got from Al to Carl and if Carl

ser-zykov [4K]

Answer:

2744 pennies.

Step-by-step explanation:

Let x represent the number of pennies Al have initially.

We have been given that Al agreed to give 3/7 of his pennies to Bev, so number of pennies Bev will get would be $\frac{3}{7}x$ .

We are also told that Bev gave 3/7 of what she got from Al to Carl, so number of pennies that Carl will get would be $\frac{3}{7}x\cdot \frac{3}{7}=\frac{9}{49}x$ .

Further, Carl gave 3/7 of what he got from Bev to Dani, so number of pennies that Dani will get would be $\frac{9}{49}x\cdot \frac{3}{7}=\frac{27}{343}x$ .