Answer:
she makes $6.676 an hour
Step-by-step explanation:
402.17-93.26-41.86=267.05/40=6.67625
The answer is false, they are parallel not perpendicular
Answer:
<h3>
x = -5, y = 7</h3>
Step-by-step explanation:
-3x + y = 22 ⇒ y = 3x + 22
-12x - 10y = -10 and y = 3x + 22
-12x - 10(3x + 22) = -10
-12x - 30x - 220 = -10
+220 +220
- 42x = 210
÷(-42) ÷(-42)
x = -5
y = 3(-5) + 22 = -15 + 22 = 7
<u>We are given the equation:</u>
log₂(x-3) + log₂x - log₂(x+2) = 2
<u>When is it defined:</u>
in this equation, log₂(x-3) and log₂(x+2) can only be defined when
x-3 >0 and x+2 > 0
solving for the values of x, we get:
x > 3 and x > -2
which basically means x > 3
<em>Because we are looking for an inequality which is true for both x>-2 and x>3</em>
Hence, x will have a value greater than 3
<u>Solving for x:</u>
using the product rule <em>[logₐb + logₐc = logₐ(bc)]</em>
log₂[(x-3)(x)] - log₂(x+2) = 2
using the quotient rule <em>[logₐb - logₐc = logₐ(b/c)]</em>
log₂[(x-3)(x) / (x+2)] = 2
from the property <em>[ aˣ = b ⇒ logₐb = x]</em>
(x² - 3x) / (x+2) = 2²
x² - 3x = 4x + 8
x² - 7x - 8 = 0
x² + x - 8x - 8 = 0
x(x+1) - 8(x+1) = 0
(x-8)(x+1) = 0
(x-8) = 0 OR (x+1) = 0
x = 8 OR x = -1
We know that the equation is defined only for x > 3
We can see that x = 8 satisfies that inequality
Therefore, x = 8