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Ratling [72]
3 years ago
9

I need help with 25 and 26

Mathematics
1 answer:
valina [46]3 years ago
3 0

25.

The area is b * h, so

(2x + 7) * 4

which is greater than 100 units, so

(2x + 7) * 4 ≥ (don't look at =; only major) 100

8x + 28 ≥ 100

8x ≥ 100 - 28

8x ≥ 72

x ≥ 9

26.

The perimeter is 2 * (b + h), so

2 * (2x + 7 +4) = 2 * (2x + 11)= 4x + 22

which is greater than 50 units, so

4x + 22 ≥ (don't look at =; only major) 50

4x ≥ 50 - 22

4x ≥ 28

x ≥ 7

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