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arsen [322]
3 years ago
9

Ahhhhh can someone please help its on quadratic equations

Mathematics
1 answer:
Temka [501]3 years ago
5 0
1. -9/2, 9/2

2. 3-4(squared)2/4, 3+4(squared)2

3. -3(squared)2, 3(squared)2
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ABCD ~ EFGH
vredina [299]

Answer:

FG = 20 in

Step-by-step explanation:

∵ ABCD ≈ EFGH

∴ AD/EH = BC/FG

∵ AD = 45 in

∵ EH = 60 in

∴ BC = 15 in

∴ 45/60 = 15/FG

∴ FG = (60 × 15) ÷ 45 = 20 in

4 0
3 years ago
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Answer:

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A third-grade class has 12 girls and 13 boys. A fourth-grade class has 10 boys and 11 girls. When picking teams for PE, one capt
yulyashka [42]
I think the answer is C) 120/143
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3 years ago
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The smallest of the three circles with center D has a radius
otez555 [7]

Answer:

464 π in²

Step-by-step explanation:

The smallest circle has a radius of 8 in.

The middle circle has a radius of 8 + 4 = 12 in.

The largest circle has a radius of 12 + 4 = 16 in.

So the sum of the areas is:

π (8 in)² + π (12 in)² + π (16 in)²

= 64π in² + 144π in² + 256π in²

= 464π in²

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3 years ago
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Z varies jointly with y and the square of x. If z =128 when y =4 and x=-4, find z when x=2 and y=-5.
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z= -160

Step-by-step explanation:

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4 years ago
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