(x+2)^2+(y+5)^2=1
...........
Answer:
B is 6.
Step-by-step explanation:
We are trying to find a value for
such that:
is true for every
.
So let's choose
:




Divide both sides by -8:



Note: I didn't want to choose y to be 0 because the value of B would disappear from the equation. So you should be able to have chosen any x and y except for y=0 to solve the equation for B.
Check:
So let's check and use foil to multiply out the right hand side.




There was a 2 in front of that multplicapltiation:



This is exactly what we have on the left hand side of your given equation.
Answer:
The answer to your question is 1.875 gallons
Step-by-step explanation:
Data
distance = 50 mi
volume of gas = 1 gal
volume for 150 km = ?
Process
1.- Convert 50 mi into kilometers
1 mile ------------------- 1.6 km
x ------------------ 150 km
x = (150 x 1)/1.6
x = 93.75 mi
2.- Calculate the gallons wasted
1 gallon ----------------- 50 mi
x ---------------- 93.75 mi
x = (93.75 x 1)/50
x = 93.75/50
x = 1.875 gallons
Answer:
<em>1</em><em>7</em><em>,</em><em>1</em><em>2</em><em>8</em>
Step-by-step explanation:
<u>p</u><u>o</u><u>r</u><u>q</u><u>u</u><u>e</u><u> </u><u>1</u><u>7</u><u>,</u><u>1</u><u>2</u><u>8</u>
<u>por</u><u>que</u><u> </u><u>2</u><u>,</u><u>1</u><u>4</u><u>1</u><u> </u><u>x</u><u> </u><u>8</u><u> </u><u>=</u><u> </u><u>1</u><u>7</u><u>,</u><u>1</u><u>2</u><u>8</u>
<u>e</u><u>spero</u><u> ter</u><u> ajudado</u><u> e</u><u> bons</u><u> estudos</u>