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larisa86 [58]
3 years ago
7

Evaluate 9x^2y^-2 for x = -3 and y = 2. 324 20 1/4 9(-6)° 1/144

Mathematics
1 answer:
enyata [817]3 years ago
8 0

9514 1404 393

Answer:

  (b)  20 1/4

Step-by-step explanation:

9(-3)^2(2^-2) = 9(9)(1/4) = 81/4 = 20 1/4

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Step-by-step explanation:

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Un ascensor sube desde el primer piso al quinto piso, baja al segundo, sube al octavo. Si cada piso tiene 3 metros de altura, ¿c
german

Answer:

El ascensor recorrió unos 39 metros

Step-by-step explanation:

Segun la pregunta cada cada piso tiene 3 metros de altura, por lo tanto para calcular los metros que recorrió el ascensor tenemos que hacer el siguiente calculo:

metros desde el primer piso al quinto piso=3 metros*4=12 metros

metros desde el quinto piso al segundo piso=3 metros*3=9 metros

metros desde el segundo piso al octavo piso=3 metros*6=18 metros

Por lo tanto los metros que recorrió el ascensor=12 metros+9 metros+18 metros

metros que recorrió el ascensor=39 metros

El ascensor recorrió unos 39 metros

8 0
3 years ago
Please help me on this question as soon as possible if you don't know the right answer for this question do not answer this ques
umka2103 [35]
2b + 34greater then or equal to 54

5 0
3 years ago
On Wednesday, James slept for <img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D" id="TexFormula1" title="\frac{3}{8}" alt=
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Answer:

I believe he slept for 9 hours of the day

Step-by-step explanation:

⅜ of 24

24 ÷ 8 = 3

3 × 3 = 9

8 0
3 years ago
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