Answer:
x = 10
Step-by-step explanation:
By the converse of the side-splitter theorem, if
, then KM ∥ JN.
Substitute the expressions into the proportion:

Cross-multiply:
(x – 5)(x+4) = x(x – 3).
Distribute:

Multiply and simplify:

Solve for x: x = 10
Therefore, the value of x that would make KM parallel to JN is 10.
ANSWER
3) b
EXPLANATION
Given that:

and

Recall that the sine and cosine functions are equal for complementary angles.
This implies that,


If the average of four scores is going to be 93,
then the four scores will add up to (4 x 93) = 372 .
The first three scores add up to (95 + 92 + 89) = 276 .
In order to reach a 93 average for four scores,
Brenda needs (372 - 276) = 96 on the fourth test.
Yay Brenda ! It'll be tough, but you can do it !
Hi!
(x+a)·(x+b) = x²+xa+xb+ab = x²-12x-45
x² = x²
xa+xb = (a+b)x = -12x ⇒ (a+b) = -12
ab = -45
When (a+b) = -12 and ab = -45?
+3-15 = -12 and (+3)(-15) = -45
-3-15 = -18 and (-3)(-15) = +45
+3+15 = +18 and (+3)(+15) = +45
-3+15 = +12 and (-3+15) = -45
Answer:
(x+3)(x-15)