Answer:
A) (x-1)^2+(y+4)^2=4
Step-by-step explanation:
Here's the equation of a circle with center and radius:
(x-h)^2+(y-k)^2=r^2 with the center being at the point (h, k)
and the radius being r.
(x-1)^2+(y-(-4))^2=2^2
(x-1)^2+(y+4)^2=4
The standard deviation<span> is used in making an investment decision to measure the amount of historical volatility, or risk, </span>associated<span> with an investment relative to its annual rate of return. It indicates how much the current return is deviating from its expected historical normal returns.</span>
I guess you want to find the values of x & y. If so:
7x+2y=24
8x+2y=30
1) multiply the 1st equation by (-1)==> -7x-2y=-24
2) Now add -7x-2y=-24 to 8x+2y=30 ==> x + 0y = 6 ==> x = 6
3) replace x by 6 in any of te two equation & you will find y= - 9
Don't really need to post the options to know what the expression(s) should look like.
"Sum of" tells you its addition and because it's addition the order of the two terms (the 3 and the N) don't matter.
Your correct expressions are:
3 + n
or
n + 3
<span>[square root (8x^9y^4)]²=</span><span>8x^9y^4
</span>[3x^4y^2 square root (2x)]²=9x^8y^4 .2x=18<span>x^9y^4
the answer is
</span>square root (18x^9y^4=
<span>B. 3x^4y^2 square root (2x)
</span>
square root (2)- square root (10)/ square root (2)+square root (10)
(√2-√10) /√2+√10=(√2-√10) (√2-√10)/(√2+√10)(√2-√10 )=(√2-√10)²/2-10
2+10-2√5/-8=(√5-6)/4, it is the same of
<span>A. -3/2+1/4 square root (10)
</span>
27^2/3 =∛27²=∛3^3)^2=∛3^3x2=<span>∛3^2)^3=3^2=9
</span>
the answer is
<span>C. 9</span>