Answer:
B
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos30° = , then
cos30° = = = ( cross- multiply )
2x = 20 ( divide both sides by 2 )
x = 10 → B
Answer:
(a) The solutions are:
(b) The solutions are:
(c) The solutions are:
(d) The solutions are:
(e) The solutions are:
(f) The solutions are:
(g) The solutions are:
(h) The solutions are:
Step-by-step explanation:
To find the solutions of these quadratic equations you must:
(a) For
The solutions are:
(b) For
The solutions are:
(c) For
The solutions are:
(d) For
For a quadratic equation of the form the solutions are:
The solutions are:
(e) For
The solutions are:
(f) For
The solutions are:
(g) For
Using the Zero Factor Theorem: = 0 if and only if = 0 or = 0
The solutions are:
(h) For
Using the Zero Factor Theorem: = 0 if and only if = 0 or = 0
The solutions are:
45 people are present
Explanation: 60x1/4=15
60-15=45
<span>The answer would be:
B. ∠DEC is an exterior angle.
C. ∠ABE and ∠EBC are supplementary angles.
</span>
∠BEC is an interior angle as it was located inside the triangle. ∠DEC is an exterior angle since it was located outside the triangle. ∠ABE and ∠EBC are supplementary angles because their sum is 180. ∠BCF is not making a supplementary angle with ∠BEC.<span>
∠BEC and </span>∠EBC is a remote interior angle to exterior ∠BCF. I think it should be false since the option only put one of the remote interior angles.
Answer:
ok
Step-by-step explanation:
not really hard if you concentrate
right now check the curve and see if you'll see x axis