Answer:
w = -3
Step-by-step explanation:
-23 = 13w + 2w + 22
Combine like terms (add 13w and 2w and subtract 22 from both sides)
-45 = 15w
Divide both sides by 15
w = -3
Answer:


Step-by-step explanation:
Standard form of a sideways parabola: 
Given equation:

Add x to both sides:


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<u>Standard form of circle equation</u>

(where (a,b) is the center and r is the radius)
Given equation:

Group like terms:

Divide by 2:

Factor by completing the square for each variable:

Rearrange into standard form:

Therefore, the circle has a center at (4.5, 2.5) and a radius of √23
Answer:
15/40 and 28/40
Step-by-step explanation:
3/8 = 15/40
7/10 = 28/40
15+28=43
1 3/40
(I wasn't sure what the question really wanted)
xx
The coefficients are the numbers next to a variable (which is X in this case). Therefore, the coefficients here are 4 and 8
Answer:
Second one is -30, 20, -50
Third one is 30, 24, 6
Step-by-step explanation: