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Furkat [3]
3 years ago
7

the rectangular post shown at the right measures 2w-30 by w. the poster has an area of 5400 cm^2. what is The value of w ?

Mathematics
1 answer:
borishaifa [10]3 years ago
3 0

Step-by-step explanation:

w(2w - 30) = 5400

2w²- 30w = 5400

2w² - 30w - 5400 = 0

(w - 60 ) ( w + 45 ) = 0

w= 60 w= - 45

only take the positive value

therefore w = 60

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Answer:

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3 0
3 years ago
P=2L+2w what is L on this problem
Korolek [52]
Since this is the equation to find the perimeter of a rectangle, L represents the length of the rectangle

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4 0
3 years ago
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Inessa [10]

Answer:

4 people will be expected to win the prize

Step-by-step explanation:

Out of 15 people, 5 won a prize

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3 0
4 years ago
Find the surface area of each figure?Please help
kolbaska11 [484]
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Surface area of the cube
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6(2.5 x 2.5) = 37.5m²

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Surface area of the rectangle prism
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2(11 x 7) + 2(9 x 7) + 2(9 x 11) = 478m²

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Overlapping area
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4 0
3 years ago
What is the solution set of the equation 30/x^2-9 +1=5/x-3
gizmo_the_mogwai [7]
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8 0
3 years ago
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