Answer:
<u><em>Decimal</em></u><u><em>:</em></u>
h = 4.2 ft
<em><u>Fraction</u></em><em><u>:</u></em>
ft
Step-by-step explanation:
<u><em>Cross multiply.</em></u>
h · 15 = 9 · 7
<u><em>Simplify.</em></u>
15h = 63
<u><em>Divide each side by 15.</em></u>
15h ÷ 15 = 63 ÷ 15
<em><u>Simplify.</u></em>
h = 4.2
A. 2 parts is 7, so 7/2 is 3.5 = 1 part, then multiply by 3 to make the corresponding side which is 10.5 or 10 1/2
The diameter is the line that goes through the middle of a circle and the radius goes from the center to a point in the circle so r = d/2 or d =2r
C. d/2
Answer:
(x,y) = (8,7)
Step-by-step explanation:
Solve equation [2] for the variable x
[2] x = y + 15
Plug this in for variable x in equation [1]
[1] (y +15) + y = 1
[1] 2y = -14
Solve equation [1] for the variable y
[1] 2y = - 14
[1] y = - 7 By now we know this much :
x = y+15
y = -7
// Use the y value to solve for x
x = (-7)+15 = 8
Solution :
{x,y} = {8,-7}
A.) (-2,-4)
(7+3)/2=5, (10+2)/2=6
(-7+5,-10+6)
(-2,-4)
b.)r^2=244
10^2+12^2=244
r=2(61)^(1/2)
c.)(x+2)^2+(y+4)^2=244
