0.4x + 0.28 = 0.6x - 4.2
0.4 x - 0.6x = - 4.2 - 0.28
- 0.2x = -4.48
x = 22.4
Answer:
Matt's team
Step-by-step explanation:
Sarah's team finished in 1 hour and 30 min
Matt's team finished in 1 hour and 15 min
<span>the answer is </span><span>0.145833333</span>
Answer:
a> -32
Step-by-step explanation:
-40 < 2(a +12)
-40 < 2(a) +2(12) <em>(</em><em>expand</em><em>)</em>
-40 < 2a +24
-40 -24 < 2a <em>(</em><em>bring</em><em> </em><em>constant</em><em> </em><em>to</em><em> </em><em>one</em><em> </em><em>side</em><em>)</em>
-64 < 2a <em>(</em><em>simplify</em><em>)</em>
2a > -64
a > -64 ÷2
a > -32
Answer:
A
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x + 4)² + (y - 1)² = 25 ← is in standard form
with centre = (- 4, 1 ) and r = 
= 5 → A
