Answer:
d ≈ 21.26 units
Step-by-step explanation:
calculate the distance d using the distance formula
d =
with (x₁, y₁ ) = (- 3, 8 ) and (x₂, y₂ ) = (13 - 6 )
d =
=
=
=
=
≈ 21.26 units ( to 2 dec. places )
X = plan A and y = plan B
7x + 9y = 720
5x + 3y = 360.....multiply by -3
---------------
7x + 9y = 720
-15x - 9y = -1080 (result of multiplying by -3)
---------------add
-8x = - 360
x = -360/-8
x = 45 minutes <== plan A
5x + 3y = 360
5(45) + 3y = 360
225 + 3y = 360
3y = 360 - 225
3y = 135
y = 135/3
y = 45 minutes <== plan B
so both plans last 45 minutes <==
Answer:
r ≈ 6 inches
Step-by-step explanation:
r=≈5.99696 which rounds to 6
Answer:
<h2>
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Step-by-step explanation:
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<em><u>Hence</u></em><em><u>,</u></em>
Answer:
I'm pretty sure it's D
Step-by-step explanation:
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