5(b - 0.18b).....use the distributive property
5b - 0.90b <== ur equivalent expression
Answer:
B
Step-by-step explanation:
B: 1 = 3×1 -2 = 1
4 = 3×2 -2
2x+5=27
subtract 5 from both sides:
2x=22
divide by 2 on both sides:
x=11
18b - 24c because you multiply the outside with everything inside
Answer:
mRT = 4√13 ≈ 14.42
mST = 10√2 ≈ 14.14
Step-by-step explanation:
Pythagorean Theorem: a² + b² = c²
Since we have right triangles, in order to find the missing side, we use Pythagorean Theorem:
mTR:
12² + 8² = c²
144 + 64 = c²
c² = 208
c = √208 = 4√13
mST:
15² = 5² + b²
225 - 25 = b²
b² = 200
b = √200 = 10√2
To get your decimals, simply evaluate the square roots:
4√13 = 14.4222
10√2 = 14.1421
