Answer:
1:3
Step-by-step explanation:
Down arrows: 4 out of 12
4:12
1:3
Answer:
4
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(6-(-2))/(3-1)
m=8/2
m=4
Option a. 1/4 is the right answer
Step-by-step explanation:
Given expression is:

Here
we know that
a = x
In order to find the number which should be added
comparing with the formula


So, we will add the square of 1/2 which is 1/4
Hence,
Option a. 1/4 is the right answer
Keywords: Expressions, polynomials
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Answer:

Step-by-step explanation:
-2z - xy = x + 7
Add 2z to both sides:
-2z + 2z - xy = x + 7 + 2z
-xy = x + 7 + 2z
Next, subtract x from both sides:
-xy - x = x - x + 7 + 2z
- xy - x = 7 + 2z
Factor out -x from the left-hand side of the equation:
- x(y + 1) = 7 + 2z
Divide both sides by - (y + 1) to isolate x:


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B, D and F are midpoints
so
DB = 1/2 (AE)
BF = 1/2 (CE)
DF = 1/2(AC)
in this case you only need to find out DF = ?
and you also know AC = 50
so
DF = 1/2 (AC)
DF = 1/2(50)
DF = 25
answer
DF = 25