Answer: 32 degrees
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
The scatter graph shows a decreasing correlation.
Its not A because it's a increasing correlation
its not C because it's neutral
its not D because it's a no correlation graph
Answer:
13 l of 15%, 13 l of 25%, 26 l of 70%
Step-by-step explanation:
solutions:
final solution:
This includes 0.45*52l= 23.4 l acid
Let's assume:
- amount of 15% solution= x
- amount of 25% solution= y
- amount of 70% solution= z
- and we have z=2y
so there are 2 equation:
or
- x+y+2y= 52 ⇒ x+3y= 52 ⇒ x= 52- 3y
- 0.15x+1.65y=23.4
- 0.15*(52-3y)+1.65y=23.4
- 7.8-0.45y+1.65y=23.4
- 1.2y=23.4-7.8
- 1.2y= 15.6
--------
- x= 52- 3*13= 13 l
- z= 2y= 2*13= 26 l
The area of rectangle is 15x - 25y + 30 sqaure units
<em><u>Solution:</u></em>
Given that, a rectangle with a length of 5 and a width of 3x - 5y + 6
To find: Area of rectangle
<em><u>The area of rectangle is given by formula:</u></em>

From given,
Length = 5
Width = 3x - 5y + 6
<em><u>Substituting the values in formula, we get,</u></em>

Thus area of rectangle is 15x - 25y + 30 sqaure units
Answer:D
Step-by-step explanation:
2x + 3y = 12
-2x -2x
3y = -2x + 12
/3 /3 /3
Y = -2/3x + 4