Answer:
7
Step-by-step explanation:
Answer:
Solution given:
letA=(10,-4)
B=(-2,-4)
centre[C](h,k)=
radius=
units
we have
Equation of a circle is;
(x-h)²+(y-k)²=r²
(x-4)²+(y+4)²=36
or.
x²-8x+16+y²+8y+16=36
x²-8x+8y+y²=36-32
x²-8x+8y+y²=4
<u>T</u><u>h</u><u>e</u><u> </u><u>e</u><u>q</u><u>u</u><u>a</u><u>t</u><u>i</u><u>o</u><u>n</u><u> </u><u>i</u><u>s</u><u> </u><u>(x-4)²+(y+4)²=36</u><u> </u><u>o</u><u>r</u><u> </u><u>x²-8x+8y+y²=4</u><u>.</u>
Answer:
125 percent
Step-by-step explanation:
The proportion is
40 percent
------ = ----------
32 100
Using cross products
40*100 =32 * percent
Divide by 32
4000/32 = percent
125 = percent
Answer:
c = x + 2.
Step-by-step explanation:
Let the correct temperature be x degrees and the temperature of the faulty thermometer be c degrees.
Assuming you need to solve for x:
-6(x + 6) - 10 = -2(5 + 4x)
start by distributing your numbers outside the front of your parentheses:
-6x - 36 - 10 = -10 - 8x
then combine like terms:
-6x - 46 = -10 - 8x ... add 10 to both sides (which technically could have cancelled out in the step prior, but regardless)
-6x - 36 = -8x ... add 6x to both sides
-36 = -2x ... divide both sides by -2
x = 18
