Answer:
$1.25
Step-by-step explanation:
3.2/2.56=1.25
To get 76% of 75 you turn the fraction to a decimal, then multiply it to the number. 76% as a decimal us 0.76 and 0.76 * 75 = 57
So, Ciaran got 57 out of 75 questions right.
9514 1404 393
Answer:
A. 2
Step-by-step explanation:
The perimeter is the sum of the side lengths:
48 = (3t +3t) +(4t +4t) +(7t +6)
42 = 21t . . . . . . . . . . . . . . . . . . . collect terms, subtract 6
2 = t . . . . . . . . divide by 21
Answer:
1) (x + 12)²+(y+6)²= 28
comparing above equation with(x-h)²+(y-k)²=r²
we get
r=√28
h=-12
k=-6
;.centre=(-12,-6)
radius =√28 units
2) x²+(y+7)²=15
comparing above equation with(x-h)²+(y-k)²=r²
we get
r=√15
h=0
k=-7
;.centre=(0,-7)
radius=√15 units
3) (x + 4)²+(y - 1)² = 4
comparing above equation with(x-h)²+(y-k)²=r²
we get
r=√4=2units
h=-4
k=1
;.centre=(-4,1)
radius=√2units
4) (x+3)²+(y-1)²= 8
comparing above equation with(x-h)²+(y-k)²=r²
we get
r=√8=2√2units
h=-3
k=1
;.centre=(-3,1)
radius=2√2units
