Answer:
B and E
Step-by-step explanation:
Given the rational expression
← factorise the denominator
2x² - 32 ← take out a common factor of 2 from each term
= 2(x² - 16) ← (x² - 16) is a difference of squares
= 2(x - 4)(x + 4)
The expression can now be written as
The denominator of the expression cannot be zero as this would make the expression undefined. Equating the denominator to zero and solving gives the values that x cannot be.
2(x - 4)(x + 4) = 0
Equate each factor to zero and solve for x
x - 4 = 0 ⇒ x = 4
x + 4 = 0 ⇒ x = - 4
These are the values of x that make the expression undefined.
x = 4 → B
x = - 4 → E
Answer: 1.32
Step-by-step explanation:
1 liter has 1000 ml
0.5 l = 2.59
500 ml = 2.59
_____
200 ml = 0.92
100 ml = 0.46
500 ml = 2.3
second deal is better by 29 cents
Answer:
m∠ABC = 130.4°
Step-by-step explanation:
Angle Bisector: The line that divides the angle into <u>two equal parts</u>.
If BD bisects ∠ABC then:
⇒ ∠ABD = ∠DBC
Given m∠ABD = 65.2° then:
⇒ ∠DBC = 65.2°
Therefore:
⇒ m∠ABC = m∠ABD + m∠DBC
⇒ m∠ABC = 65.2° + 65.2°
⇒ m∠ABC = 130.4°
Answer:
- Given and Explained Below.
Step-by-step explanation:
slope intercept form: y = mx + b ............where m is slope and b is y-intercept
<u>1st question:</u>
4x + y = 1
y = 1 - 4x
y = -4x + 1
<u>2nd question:</u>
x + 2y = 9
2y = 9 -x
y = (-x + 9)/2
y = 
