Answer:
an equation is 116-2x = 180
the congruent angles each measure 32
Step-by-step explanation:
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So, she paid (75-17.34=57.66) for the purchase
Or, the jeans costed 57.66-3.26=54.4 (prize minus sales tax)
But she got a 10 dollars off! so that means that the jeans actually costed 64.4
now, the 64.40 was the prize discounted by 30%:
64.40=(100-30)%*x
where x was the original prize
64.40=0.7x
644=7x
x=644/7
x=92
so the original prize was 92 dollars.
The answers are x=6 or x=-1.
To solve this, we first use the quotient rule for the natural logarithm. It says that ln(x/y) = ln(x) - ln(y). Applying this, we take our original equation,

and rewrite it as

We undo natural log by raising e to both sides:

Once this is canceled we are left with:

If we view this as a proportion, we can cross multiply:
(x-3)(x) = 2(x+3)
Using the distributive property on both sides we have:
x²-3x=2x+6
Cancel the 2x from the right hand side by subtracting:
x²-3x-2x=2x+6-2x
x²-5x=6
Cancel the 6 by subtracting:
x²-5x-6=0
This is easily factorable. We want factors of -6 that sum to -5; -6(1) = -6 and -6+1=-5:
(x-6)(x+1)=0
Using the zero product property, we know either x-6=0 or x+1=0; thus x=6 or x=-1.
Given:
The table of values of a linear relationship.
x y
-1 -1
0 1
1 3
2 5
To find:
The equation for the given table of values.
Solution:
If a linear function passes through the two points, then the equation of the linear relationship is

Consider any two point from the given table. Let the two points are (-1,-1) and (0,1). So, the equation of the linear relationship is




Using distributive property, we get


Subtracting 1 from both sides, we get


Therefore, the required equation is
. Hence, the correct option is D.