Answer:
13.3650978628
Step-by-step explanation:
Angle A=180-(Angle B+C)=180-117=63
Here,
b=BC, p=AC & AB=12
Using the relation of cos,
cosx=b/h
cos27=BC/15
15cos27=BC
Using a calculator,
BC=13.3650978628
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Option A is correct.
Put the values of x in 3^x and you will get the answer corresponding to option A
Step-by-step explanation:
product=× three=3 a number is unknown =x plus=+ five=5 is=equals to 20
3×x +5=20
3x+5=20
Subtract 5 from both sides
3x+5-5=20-5
3x=15
3x/3=15/3
x=5
Answer:
x = 17
Step-by-step explanation:
8x+4=7(x+3) - Equation
8x+4=7x+21 - Distribute the 7
8x-7x=21-4 - Isolate the x
x=17 - Answer