Answer:
M-7
Step-by-step explanation:
"seven less than m" means you're taking 7 away from the value of m. The equation for this would simply be "M-7".
3x + 1y = ¹/₃ ⇒ 9x + 3y = 1
2x - 3y = 2²/₃ ⇒ 2x - 3y = 2²/₃
11x = 3²/₃
11 11
x = ¹/₃
3x + y = ¹/₃
3(¹/₃) + y = ¹/₃
1 + y = ¹/₃
- 1 - 1
y = ⁻²/₃
(x, y) = (¹/₃, ⁻²/₃)
Answer:
(
x
+
4
)
(
x
+
9
)
=
0
Your answer would be x=-4 and x=-9.
Explanation::
(
x
+
4
)
(
x
+
9
)
x
times
x
=
x
2
x
(
9
)
+
x
(
4
)
=
13
x
4
times
9
=
36
=
x
2
+
13
x
+
36
PEMDAS
2(12)x(12)/2
24x12/2
288/2
144
Answer:
3,451 cm³
Step-by-step explanation:
The ball is a sphere.
Formula for finding the volume of a sphere = ⁴/3*πr³
Volume of the 3 balls = 3(⁴/3*πr³)
Where,
radius (r) = ½ of diameter = ½(13) = 6.5 cm
Plug in the values into the formula:
Volume of the 3 balls = 3(⁴/3*π*6.5³)
= 4*π*274.625
= 3,451.03953 ≈ 3,451 cm³