Answer:
Step-by-step explanation:
7.10
The third choice is the correct answer because c is subtracted when negative and 76 is the starting value
Answer:
109.5; B
Step-by-step explanation:
From your identity,
CosA = adjacent/ hypothenus
A represent an arbitrary angle between the sides in question.
In the question above, A=64
Hypothenus is the longest side and adjacent is the side just below the angle .
In the above case,
Hypothenus= X
adjacent =48
This means;
Cos64 = 48 /X
X = 48 / cos64; [ from cross multiplication and diving through by cos64]
X = 48 /0.4383 [ cos64 in radian = 0.4383]
= 109.51
= 109.5 to the nearest tenth.
Note( do your calculation of angle in radian or else, you won't get the answer)
Answer:
$55.96
Step-by-step explanation:
To find 30% of $79.95, we must multiply 79.95 by .3
We get 23.985, which can be rounded to the nearest 100th to get 23.99
So, 30% of $79.95 is $23.99
Now, we can just subtract to find the sale price.
$79.95 - $23.99 = $55.96