I’m going to guess 3751? Because if it doubles every twelve years then it multiplies by .1667 every year so multiply .1667 by 12 doubles the number, so multiplying .1667 by 15 should be 3751 if rounded.
When using the X method to solve, you can plug in the values given to you in the answers. 8 and 11 multiplied does equal 88 but when added they don't equal to 26 so A is wrong. 4 and 22 do equal 26 but when multiplied, they don't equal to 88 so B is also wrong. 22 and 4 added together equals 26 and multiplied it equals to 88. So C is your answer.
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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
Answer:
around 254.47
Step-by-step explanation:
pi*r^2 is the equation. the radius is 9 so in the equation the r^2 is equal to 81 since 9*9 =81. 81*pi is equal to 254.47
