Answer:
Width is 18 inches
Perimeter is 99 inches
Area is 567 square inches
Step-by-step explanation:
The ratio of width to length is 4 : 7
The length is 31.5 inches
The width = (31.5 ×4) ÷ 7 = 18 inches
Perimeter = 2(length + width)
Perimeter = 2(31.5 + 18) inches = 99 inches
Area =length × width
Area = 31.5 inches × 18 inches = 576 square inches.
Answer:
Volume of prism is 60 cm^3.
Step-by-step explanation:
The volume of prism can be found using formula:
V= B*h
Where B= base area and h= height.
In the question, we are given Base area B= 10cm^2 and height h= 6cm.
Putting values in the formula:
V= B8h
V= 10* 6
V = 60 cm^3
So, volume of prism is 60 cm^3.
Answer:
If
x
y
=
sin
x
, using the product rule:
y
+
x
y
'
=
cos
x
□
y
'
+
y
'
+
x
y
'
'
=
−
sin
x
△
△
x
+
□
⇒
2
y
'
x
+
y
'
'
+
y
+
x
y
'
=
−
sin
x
x
+
cos
x
As
y
=
sin
x
x
and
y
+
x
y
'
=
cos
x
:
2
y
'
x
+
y
'
'
+
cos
x
=
−
y
+
cos
x
⇒y''+2y,
x+y=0
Answer: 0.720
Step-by-step explanation:
0.720 = 18/25
0.51 = 51/100
0.144 = 18/125
0.023 = 23/1000