Answer:
<h3>#1</h3>
- tangent = opposite leg / adjacent leg
- tan ∠F = DE/ EF
- tan ∠F = 24/7
<u>Option D</u>
<h3>#2</h3>
Sine and cosine are same for complementary angles.
- Complementary of 67° is 90° - 67° = 23°.
- sine 67° = cosine 23°
Answer:
<u>f(x)=x²-2x-2</u>
Step-by-step explanation:
<em><u>f(x)=ax²+bx+c</u></em>
f(0)=-2 => c= -2
f(1)= -3=> a+b-2=-3; a+b=-1
f(2)= -2; 4a+2b-2=-2; 4a+2b=0; 2a+b=0
a+b=-1 and 2a+b=0
2a+b-(a+b)=0+1=> a=1
2+b=0=> b=-2
f(x)=x²-2x-2
C should be the correct answer
Answer:
The resultant of the two vectors is (0,0).
Step-by-step explanation:
- The ordered pair is : (-6,5) and (6,-5).
- The resultant is the vector sum of two or more vectors. It is the result of adding two or more vectors together.
- The vector resultant is calculated as:
Abscissa of resultant= -6 + 6 = 0
Ordinate of the resultant= 5- 5= 0
- Hence the resultant has the co ordinate of (0,0).
