Answer:
only first equation is an identity
Step-by-step explanaition
so in the first equation it shows the word sin 2 0. this means that it is definitely an equality however tan is not
Answer:
-21
28
Step-by-step explanation:
1) if r = -4
Substitute r = -4 in 3r - 9
= 3 * (-4) - 9
= -12 - 9
= -21
2) ( 4 / 7 ) * x = 16
4 * x = 16 * 7
x = 4 * 7
x = 28
Answer:
Step-by-step explanation:
Here the earlier price of the video game was $ 49 and now it's being sold for $ 300 . We need to calculate the percentage increase in price .
So the increase in cost is $( 300 - 49 ) = $ 251 .
So we can calculate the % increase as ,
<u>Subst</u><u>ituting</u><u> the</u><u> respective</u><u> values</u><u> </u><u>:</u><u>-</u>
Answer:
5 11/12 cups of melon
Step-by-step explanation:
The cups of melon he puts in the fruit salad is:
Number of cups of orange melon + Number of cups of green melon
= 3 1/4 cups + 2 2/3 cups
3 + 2 + (1/4 + 2/3)
The Least common denominator is 12
5 + (3 × 1 +4 × 2/12)
5 + (3 +8/12)
5 11/12 cups
Therefore, Jason put in 5 11/12 cups of melon in the fruit salad.
Those are vertical angles meaning that they are of equal measure. set the 2 measures equal and solve for x
3x - 25 = 6x - 80
55 = 3x
x = 18 1/3 - use this number to plug back in to calculate the actual angle measures
