26
thursday 138 (46 x 63 / 21 = 138)
friday 99 (33 x 63 / 21 = 99)
27.
100% - 80% = 20%
20% = 0.2
150 * 0.2 = 30
answer: 30 students chose math
<u>Question</u><u>:</u>
In triangle JKL, the measure of angle L = 90°, KJ = 37, LK = 12, and JL = 35. What ratio represents the cosine of angle J?
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<u>Solution</u><u>:</u>
The triangle JKL should look like that in the attachment.
Cosine of J = adjacent side/hypotenuse
= LJ/KJ
= 35/37
Since the TOTAL area is 30 square inches, what you would do is divide 30/3, since you already know how wide it is. And the answer is 10. The envelope is 10 inches tall.
The points in the graph are (-1,0) and (3,0). I solved the equation using the Factoring method in solving quadratic equations. As I solved for finding x= -1 and 3, I substituted both to the equation in order to find y.
Answer:
A)30 565,98
B)638 438,95
C)3 915,2584
D)4 186,1695652
Step-by-step explanation:
