You're right but just to simplify your life, make the formula this...
A=2(wl+hl+hw)
w=width
h=height
l=length
Easy, just fill in the "variables."
Example,
l=2
w=2
h=2
Plug it in..
2(2*2+2*2+2*2)
2(4+4+4)
2(12)
24
Thus, your surface area example...
Easy.
Answer:
Explanation:
In a right triangle the angle between the hypotenuse and the adjacent leg to the angle are related by the trigonometric ratio cosine.
Cosine is the ratio of the adjacent leg to the hypotenuse:
In the right triangle ART, AT is the hypotenuse, AR is the ajacent leg to the angle 66º, and RT is the opposite leg to the angle 66º.
Then, the length of AT and 12.5 is related by the cosine ratio:
Multiplying both sides of the equation by 12.5in:
← answer
Answer:
No, because 70% of a class of 30 students would be 21, not 24
Step-by-step explanation:
13. 3(x-6)-8=-2 (you have to plug in x-6 as x in the equation
3x-18-8=-2 (distribute 3)
3x-26=-2 (combine like terms)
3x=24 (subtract 26 to both sides)
x=8 (divide 3 to both sides)
14. -2(3(5y+5)=-4
-2(15y+5)=-4
-30y-10=-4
30y=6
y=1/5
15. (3x-5) +2x = 90
16. Let m be the number of minutes
0.75m+32 = 47
Using this equation you can find the number of minutes.
0.75m = 15 ( subtract 32 to both sides)
m= 20 (divide 0.75 to both sides)
Vera called 20 minutes beyond her allowed minutes.
Here I hope that this helped you out hon :)
Answer:
54 is the area
Step-by-step explanation:
you do 6 x 9=54
