(x - 4y)²
(x - 4y)(x - 4y)
x(x - 4y) - 4y(x - 4y)
x(x) - x(4y) - 4y(x) + 4y(4y)
x² - 4xy - 4xy + 16y²
x² - 8xy + 16y²
Answer:
- 5x² + 3x + 27
Step-by-step explanation:
To find the polynomial subtract 5x² - 3x - 9 from 18, that is
18 - (5x² - 3x - 9) ← distribute parenthesis by - 1
= 18 - 5x² + 3x + 9
= - 5x² + 3x + 27 ← required polynomial
Answer:
A triangle similar to DEF will have an angle that measures 45 degrees, an angle that measures 65 degrees, and an angle that measures 70 degrees
Step-by-step explanation:
Given
See attachment for complete question
Required
Angles of a triangle similar to
First, calculate the angle at D
---- angle on a straight line
Collect like terms
Next, calculate the angle at F
---- angle on a straight line
Collect like terms
Lastly, the angle at E
--- angles in a triangle
Make E the subject
<em>A triangle similar to </em><em> will have 45, 70 and 65 degrees as its angles</em>
Answer:
y = 1x - 4
Step-by-step explanation:
y2 - y1 / x2 - x1
0 - 4 / 4 - 8
-4 / -4
1
y = 1x + b
0 = 1(4) + b
0 = 4 + b
-4 = b