Daniel, Jim and David share £80 in the ratio 3:6:7 respectively. David gets the biggest share,

Mathematics

1 answer:

shutvik [7]2 years ago

6 0

Answer:

Got my points deducted by a loser name PoeticAesthetics

Step-by-step explanation:

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Number 9 !!!! please answer !!!! explain how u got the answer and the answer of cpurse

storchak [24]

answer:

90 degrees + 28 degrees= 118 degrees

180-118= Z is 62 degrees

13y-1 = 24 2x-7 = 39

+1 +1 +7 +7

13y = 25 2x = 46

/13 /13 /2 /2

y = 1.92 X = 23

3 0

2 years ago

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Can someone please help me on this

Karolina [17]

it is a because it is the line is in the spot we're it is ststop to go

8 0

2 years ago

Please help! 30 points!

Rashid [163]

Answer: $64.2^{\circ}$

Step-by-step explanation:

According to the cosine rule

$\cos C=\dfrac{a^2+b^2-c^2}{2ab}$

Here, $a=83, b=111, c=165,\ C=180^{\circ}-\theta$

Putting values

$\Rightarrow \cos (180^{\circ}-\theta)=\dfrac{83^2+111^2-165^2}{2\times 83\times 111}\\\\\Rightarrow \cos(180^{\circ}-\theta)=\dfrac{6889+12321-27225}{18426}\\\\\Rightarrow \cos(180^{\circ}-\theta)=\dfrac{-8015}{18426}=-0.4349\\\\\Rightarrow 180^{\circ}-\theta=\cos^{-1}(-0.4349)=115.77^{\circ}\\\Rightarrow \theta=64.23\approx 64.2^{\circ}$