No.
Perpendicular lines are lines that intersect at a 90° angle.
If two lines are perpendicular, they create four 90° angles.
However, for two lines to intersect, they do not necessarily have to intersect at a 90° angle.
<em>All roses are flowers, but not all flowers are roses.</em>
<em>All perpendicular lines are intersecting lines, but not all intersecting lines are perpendicular.</em>
Answer:
y = -2/5x + 2
Step-by-step explanation:
<h2><u>
Answer:</u></h2><h2>

</h2><h2 /><h2><u>
Solution Steps:</u></h2>
____________________________
<h3>1.) To find lateral surface the formula is: </h3>
<h3 /><h3>2.) Solve:</h3>
<h3 />
____________________________
<h3 />
Answer: "
x = 1 + √5 " or "
x = 1 − √5" .
______________________________________________________Given:
______________________________________________________ " x² − 2x − <span>4 = 0 " ;
______________________________________________Solve for "x" by using the "quadratic formula" :
</span>Note: This equation is already written in "quadratic format" ; that is:
" ax² + bx + c = 0 " ; { "a

0" } ;
in which: "a = 1" {the implied coefficient of "1" ;
since "1", multiplied by any value, equals that same value};
"b = -2 " ;
"c = -4 " ;
_______________________________________________________The quadratic equation formula:
x = { - b ± √(b² − 4 ac) } / 2a ; {"a

0"} ;
______________________________________________________Substitute our known values:
______________________________________________________ → x = { - (-2) ± √[(-2)² − 4(1)(-4)] } / 2(1) ;
→ x = { 2 ± √(4 − 4(-4) } / 2 ;
→ x = { 2 ± √(4 − (-16) } / 2 ;
→ x = { 2 ± √(4 + 16) } / 2 ;
→ x = { 2 ± √(20) } / 2 ;
→ x = { 2 ± √4 √5} / 2 ;
→ x = { 2 ± 2√5} / 2 ;
→ x = 1 ± √
5 ;
_______________________________________________________→ "
x = 1 + √
5"
or "
x = 1 −
√
5"
.
_______________________________________________________
Answer:
3 +4 i
Step-by-step explanation:
x + sqrt(yz)
Let x = 3 y=2 and z = -8
3 + sqrt(2*-8)
3+ sqrt(-16)
3 + sqrt(16) sqrt(-1)
We know sqrt(-1) = i
3 +4 i