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mixas84 [53]
3 years ago
13

Ahh please help meeee

Mathematics
2 answers:
Anna [14]3 years ago
8 0
C is also the best answer
Andrews [41]3 years ago
3 0
The answer would be c
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HELP ME ASAP.. MY TEACHER IS ASKING FOR THE ANSWER ​
Solnce55 [7]

Answer:

a) 10.7 cm

b) 11.6 cm

c) 29.9 cm²

Step-by-step explanation:

a) sin(α)/a = sin(β)/b

sin(∠BCD)/BD = sin(DBC)/DC

sin(41°)/BD = sin(55°)/13.4

BD = 13.4*sin(41°)/sin(55°) = 10.73 cm ≈ 10.7 cm

b) From ΔBCD , ∠BDC = 180-(41+55) = 84°

∠ABD and ∠BDC are alternate interior angles, so they are congruent, and

∠ABD = ∠BDC  = 84°

AD²= AB² + BD² - 2*AB*BD*cos (∠ABD) =

= 5.6² + 10.73² - 2*5.6*10.73*cos(84°) = 133.93 cm²

AD =√(133.93) ≈11.6 cm

c) Area(ADB) = (1/2)*AB*BD*sin(∠ABD)=(1/2)*5.6*10.73*sin(84°) ≈ 29.9 cm²

5 0
3 years ago
The mean of 8 numbers is 4,6,4,7,(x),(x+1),8 and 2 is 5. Find x​
arsen [322]

Answer:

X=2.5

Step-by-step explanation:

4+6+4+7+X+(X+1)+8+2/8=5

31+X+(X+1)/8=5

40=31+X+(X+1)

9=X^2+X

X=2.5

5 0
3 years ago
Can anyone please help me on this question
MakcuM [25]

Answer:

d. 4x+1

Step-by-step explanation:

(5x+3)-(x+2)

5x-x=4x

3-2=1

Final answer= 4x+1

4 0
3 years ago
Help! what is the missing length?
matrenka [14]

Answer:

Hello! answer: 30

Step-by-step explanation:

32 × 30 = 960 HOPE THAT HELPS!

3 0
2 years ago
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Think About the Process At a little-known vacation spot, taxi fares are a bargain. A 28-mile taxi
scoray [572]

Answer:

$68.57

Step-by-step explanation:

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3 years ago
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