Answer:
3.5x10^3
Step-by-step explanation:
3.5x10^2 = 350
350x10 = 3500
3500 = 3.5x10^3
(6x + 3) - 5x
(3 + 6x) - 5x.....commutative
3 + (6x - 5x).....associative
3 + (6 - 5)x...distributive
3 + 1x....subtraction
3 + x....multiplicative identity
Answer:
84
Step-by-step explanation:
Calculator:280÷100×30=84
Answer:
22.4
Step-by-step explanation:
using altitude theorem, the height of the triangle is 20
let y = height
10/y = y/40
y² = 400
y =
or 20
Now we can us the Pythagorean Theorem to find 'x':
10² + 20² = x²
100 + 400 = x²
x=
≈ 22.4