Answer:
Loading,please wait...
Step-by-step explanation:
Answer:
7:50
Step-by-step explanation:
We need both measures in the same units. Let's convert meters to cm.
1 m = 100 cm, so 3 m = 300 cm
Now we write the ratio and reduce it.
42 cm to 3 m =
= 42 cm to 300 cm
= 42:300
= 14:100
= 7:50
Answer: -4
Step-by-step explanation:
-1.5(4-r)=-12
Divide both sides by -1.5
4-r=8
-r=4
r=-4
Therefore, the value of r is -4
Answer:8
Step-by-step explanation:(
x
+
4
)
2
+
(
y
−
7
)
2
=
64
This is the form of a circle. Use this form to determine the center and radius of the circle.
(
x
−
h
)
2
+
(
y
−
k
)
2
=
r
2
Match the values in this circle to those of the standard form. The variable
r
represents the radius of the circle,
h
represents the x-offset from the origin, and
k
represents the y-offset from origin.
r
=
8
h
=
−
4
k
=
7
The center of the circle is found at
(
h
,
k
)
.
Center:
(
−
4
,
7
)
These values represent the important values for graphing and analyzing a circle.
Center:
(
−
4
,
7
)
Radius:
8
Answer:
s = 2t
Step-by-step explanation:
At the end of a snow storm, Audrey saw there was a lot of snow on her front lawn. The temperature increased and the snow began to melt at a steady rate. There was a depth of 10 inches of snow on the lawn when the storm ended and then it started melting at a rate of 2 inches per hour. Write an equation for S, in terms of t, representing the depth of snow on Audreys lawn, in inches, t hours after the snow stopped falling.
2 inches = 1 hour
10 inches = x hour
2x = 10
x = 10/2
x = 5
Creating an equation
S ∝ t
S = kt
k = s/t
k = 2/1
k = 2
The equation for S, in terms of t, representing the depth of snow on Audreys lawn, in inches, t hours after the snow stopped falling is
S = 2t
