Answer:
2
Step-by-step explanation:
Using the rule of radicals
×
⇔ 
Simplifying the radicals

= 
=
×
= 4

= 
=
×
= 2
Thus
+ 2
- 2
= 4
+ 2
- 4
← collect like terms
= 2
$95.00 minus $9.50 equals $85.50
Answer:
question 1: B
question 2: AB: 7 BC: 8 CD: 7 DA: 8
(pls mark brainliest)
The quadratic formula is x equals negative b plus or minus the square root of b squared minus four times a times c, all over 2a.
Looking at the equation, we can find the values for a, b, and c
a=7
b= -10
c= -2
So then putting that back into standard form, which is ax^2+bx+c, we know Haley's function in standard form is 7x^2-10x-2
Answer:
CD = 45
Step-by-step explanation:
CE = 180
( x + 6 ) + ( 4x - 21 ) = 180
5x - 15 = 180
5x = 195
x = 39
substitute x in CD
CD = x + 6
CD = 39 + 6
CD = 45