Answer:
B
Step-by-step explanation:
The equation of a circle is
(x-h)^2 + (y-k)^2 = r^2
h= 9, k = -7
r = 2, so r^2 = 4.
We now know that the equation must equal 4, so we can rule out answers A and C.
Plug in the values for h and k to get
(x-9)^2 + (y+7)^2 = 4
Choice B is correct!
Is it OK if I explain it before I write down the next term ?
-1 ___ 3 ___ 11 ___ 23 ___ 39 ___ ( )
The first blank is . . . . . " + 4 = " .
The second blank is . . " + 8 = " .
The third blank is . . . . " + 12 = " .
The fourth blank is . . . " + 16 = " .
So the fifth blank is . . . " + 20 = " and the next number is 59 .
Answer:
y
=
7
x
+
15
Step-by-step explanation:
Answer:
$480
Step-by-step explanation:
From the above question, we are told that:
A saleswoman earns 60% commission on all that she sells. Last month she sold $800 worth of merchandise.
The amount of commission (In dollars) she earned last month is calculated as:
60% of $800
= 60/100 × $800
= $480
Therefore, the amount of commission shoe earned last month in dollars = $480
Answer:
The first 5 terms of the sequence are 2, 4, 8, 16 and 32.
Step-by-step explanation:
Given:
= 2
= 2
-----------------(i)
To get the first 5 terms of the sequence, substitute in turn, n = 1, 2, 3, 4, 5 into equation (i).
The first term (when n = 1) has been given as:
= 2
The second term (when n = 2) is given as:
= 2
= 2 (but = 2 )
=> = 2(2)
=> = 4
The third term (when n = 3) is given as:
= 2
= 2 (but = 4 )
=> = 2(4)
=> = 8
The fourth term (when n = 4) is given as:
= 2
= 2 (but = 8 )
=> = 2(8)
=> = 16
The fifth term (when n = 5) is given as:
= 2
= 2 (but = 16 )
=> = 2(16)
=> = 32
Therefore, the first 5 terms of the sequence are 2, 4, 8, 16 and 32.
