Answer:
12
Step-by-step explanation:
Plug the given values into the equation to solve.
a² - b²
(4)² - (-2)²
16 - 4
12
somebody help this person
Answer: 3 1/2
Step-by-step explanation:
Change to common denominator of 6.
2 1/3 = 2 2/6. (Multiply fraction by 3/3 to get 2/6)
Now you can add.
2 2/6
+ 1 1/6
—————
3 3/6
3/6 can be simplified to 1/2 by dividing numerator and denominator by 6.
answer = 3 1/2
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
