Given:
Right triangle DEF right-angled at F.
ED=97 (hypotenuse)
DF=72 (opposite side of angle E)
FE=65 (adjacent side of angle E)
Cosine of angle E
=(adjacent side)/(hypotenuse)
=FE/ED
=65/97
=0.6701 (to four decimal places)
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Is (2,2) a solution of the inequality y≤3x-5?
Simply write the y-coordinate in lieu of y and write the x-coordinate in lieu of x:-
2≤3(2)-5
Multiply:-
2≤6-5
2≤1
2 <em>is </em>less than 1, but it's not equal to 1.
So the right option is:-
(2,2) would be a solution if the inequality was y<3x-5
<h3>Good luck.</h3>
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This answer would be b because
Yes the triangle is a right triangle
I can help with 5 - 7.
5. 19.6 (Rounds up to 20.)
6. 56.7 (Rounds up to 57.)
7. 9.86 (Rounds up to 10.)
Sorry I couldn't help with more.
I hope this does help.