Answer:
A = 40.0 (3 sig. fig)
C = 40
c = 15
Step-by-step explanation:
Using sin law,
sinA/15 = sin100/23
A = 40.0 (3 sig. fig)
Using angle sum of triange,
C = 180 - 40.0 - 100 = 40
Since angleA = angleC, by side equal opp angles, c = 15
Answer:
1. x = 0, 4, -9
2. x = 3, 3, -5
3. 2x^3 - 9x^2 + 7x + 6
4. x = -6, -8, -15
5. 2x^3+10x^2+12x
Factor out the common factor:
2x (x^2+5x+6 )
Factor what's left in parentheses:
2x (x + 2) (x + 3)
6. x = 0, 4, -9
Step-by-step explanation:
Answer:
First answer = 36
Second answer = 9
Third answer =1/4
Step-by-step explanation:
Answer: im guessing you need the amount of compound b
Step-by-step explanation:
1 think out problem
compound A =222m compound B=3 milliliters of compound A used for every 2 milliliters of compound B
write compound B as an equation which is:
a=3+2b
compound a equation is: a=222
to continue you have to make compound B equation equal b
a=3+2b
-2b -2b
a-2b=3
-a -a
-2b/-2=3/-2-a/-2
b= -3/2+a/2
i am working on the substitution method: so now you substitute variables
problems are: b=-3/2+a/2 and a=222
substute a for a: b=-3/2+222/2
b=109.5
a=222
<u>compound A=222</u>
<u>compound B=109.5</u>
<u>add both for final answer or whatever: 109.5+222= 331.5</u>
<em>sorry for the long complicated answer hope you understand. i tried my best it should be right. sorry if my answer is wrong. </em>
Answer:
Let's call the length of the field "l", and the width of the field "w".
If the area of the field is 72 square meters, then we have:
l x w = 72
And if the length is 6 meters longer than the width, we have:
l = w+6
So looking at the first equation (l x w = 72), we can substitute the l for a w+6.
And we obtain:
(w+6) x (w) = 72
Which simplifies to w^2 + 6w = 72.
This quadratic equation is pretty easy to solve, you just need to factor it.
w^2 + 6w - 72 = 0
(w-6)(w+12)
This leaves the roots of the quadratic equation to be 6 and -12, but in this case, a width of -12 wouldn't make sense.
So, the width of the rectangular field is 6, and the length of the field is 12.
Let me know if this helps!
