Answer:
solid...(-3,0)(-4,-1)...shaded below the line
slope = (-1-0) / (-4-(-3) = -1/(-4 + 3) = -1/-1 = 1
y = mx + b
-1 = 1(-4) + b
-1 = -4 + b
-1 + 4 = b
3 = b
this line is : y < = x + 3 <== (thats less then or equal)
====================
solid...(1,1)(2,-1)...shaded below the line
slope = (-1-1) / (2-1) = -2/1 = -2
y = mx + b
1 = -2(1) + b
1 = -2 + b
1 + 2 = b
3 = b
Step-by-step explanation:
Answer:
5.5 ft tall
Step-by-step explanation:
The shadows cast by the pole and by the woman form <em>similar triangles</em>.
In similar triangles, corresponding sides are in the same proportion.
Thus,
18/28.8 = x/8.8
Multiply each side of the equation by 8.8
x = 8.8 × 18/28.8 = 5.5 ft
The woman is 5.5 ft tall.
The expression is simplified to give 2 ( m² + m + 2Im ) = 0
<h3>
How to simplify the expression</h3>
Given the expression;
(1+m)²= (1-m)²+ 4lm,
Expand the expression
( 1 +m) ( 1 + m) = ( 1 + m) ( 1 - m) + 4Im
1 + m + m + m² = 1 - m + m - m² + 4Im
collect like terms
1 + 2m + m² = 1 - m² + 4Im
1 - 1 + m² + m² + 2m + 4Im
2m² + 2m + 4lm = 0
simplify
2 ( m² + m + 2Im ) = 0
Thus, the expression is simplified to give 2 ( m² + m + 2Im ) = 0
Learn more about factorization here:
brainly.com/question/11579257
#SPJ1
Step-by-step explanation:
Q3, B
Q4, I'm not too sure about this one but I think its D
