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gregori [183]
3 years ago
13

Help Me Please its math >.<

Mathematics
1 answer:
ratelena [41]3 years ago
8 0
I can only do number 1 sorry :(
4x+y=2x-y what you have to do is sort the numbers into x and y so it becomes 4x - 2x = -y -y. (Remember when it crosses the = it becomes minus!) Then solve it to get 2x = -2y = 3      so x is 0.66 and y is -0.66 I guess?
I am probably wrong because I am not good at algebra but good at other stuff
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Given: Triangle ABC, mmBC=24 cm, line segment AL- &lt; bisector
Furkat [3]

The value of line AL is 21. 51cm

<h3>How to determine the length</h3>

To find line AL,

Using

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Sin 90 = x/ 24

1 = x/24

Cross multiply

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Now, let's find line AC

Sin angle B = line AC/24

Note that to find angle B

angle A + angle B + angle C = 180

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x + 2x + 90 = 180

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3x = 180-90

x = 30°

Angle B = 2 × 30 = 60°

Sin 60 = x/ 24

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Cross multiply

x = 24 × 0. 8660

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We have the angle of A  in the given triangle to be divide into two by the bisector, angle A = 15°

To find line AL, we use

Cos = adjacent/ line AL

Cos 15 = 20. 78/ line AL

Line AL = 20. 78/ cos 15

Line AL = 20. 78 / 0. 9659

Line AL = 21. 51 cm

Thus, the value of line AL is 21. 51cm

Learn more about trigonometry ratio here:

brainly.com/question/24349828

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Let's buils the intersection plane:
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\frac{CP'}{CD}=  \frac{P'Q'}{RD}  \\  \frac{2}{5}  =\frac{1}{RD}  \\ RD=2.5,
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Substiting into Expression. 18 +a a=4
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18+a, a=4

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