Answer:
<em>(2·4)² = 64 / (6*2)² = 144</em>
Step-by-step explanation:
Follow PEMDAS :
Parenthesis first, so:
2 * 4
==> 8
Then Exponent:
8 ^2
==> 64
(2·4)² = 64
Do the same for (6:2)² :
Parenthesis first :
6 * 2
==> 12
Then Exponent:
12^2
==> 144
(6:2)² = 144
your calculations for volume (pi x r^2 × h) and surface area (2 × pi × r (h+r)) are correct. However your ratio are incorrect. From the formulas the ratio of surface area to volume would be r×h:2(h+r)
Answer:
y = - 3x
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = 8 - 3x = - 3x + 8 ← is in slope- intercept form
with slope m = - 3
• Parallel lines have equal slopes , then
y = 3x + c ← is the partial equation
to find c substitute (0, 0 ) into the partial equation
0 = 0 + c ⇒ c = 0
y = - 3x ← equation of parallel line
12/4 is 3, and you can check this because 3 x 4 is 12.
Answer:
sin θ + cos θ
Step-by-step explanation:
(sin²θ + cos²θ) (sin θ + cos θ)
(1) (sin θ + cos θ)
sin θ + cos θ