1 2 3 4 5 6 7 8 9 10 Kadesha is simplifying the expression below. Negative (x minus 3) minus 2 (x minus 1) She lists the steps that she uses to simplify the expression as follows: Step 1: Distribute –1 through (x minus 3), and distribute –2 through (x minus 1). Step 2: Rewrite the expression as Negative x minus 3 minus 2 x minus 2. Step 3: Combine –x and –2x, and combine –3 and –2. Step 4: The simplified expression is Negative 3 x minus 5. In which step did Kadesha make the first error?

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168

a reflection across the x axis and a 90 degree rotation left and right.

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough