Answer:
90. 04987916
Step-by-step explanation:
Let HI be a
and GH be c
and GI be b
and <GHI be B
Using the law of Cosines,
b^2= -2ac cos (B) + c^2 + a^2
= -2(42)(60) cos (123)+60^2+42^2
= -5040 cos (123) +3600+1764
= -5040(-0. 544639035) +5364
= 2744. 980736+5364
b^2= 8108. 980736
b= Sqrt ( 8108. 980736)
b= 90. 04987916
Answer:
They cost 25c
Step-by-step explanation:
100÷4 is 25
and boom mark brainliest pls
Answer:
The question is incorrect. if you are going to solve an equation for x you need to set it equal to something.
Answer:
.20
Step-by-step explanation:
The word percent literally means "Out of 100". With that being said, 20% can be written as a fraction, mixed number or whole number as follows: 1/5 (fraction), 20/100 (mixed number) or .20 (whole number).
Given that,
An expression : 4(n- 3²) + n
To find,
The equivalent expression.
Solution,
We have,
4(n- 3²) + n
As 3²= 9
= 4(n- 9) + n
Opening the brackets,
= 4n-4(9) + n
= 4n-36 +n
= 5n-36
Hence, the equivalent expression is 5n-36.
