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Aleksandr [31]
3 years ago
10

Estimate the sum 523+117

Mathematics
2 answers:
Anna [14]3 years ago
8 0
Sum of 523+117
700
..
..
..
..



gogolik [260]3 years ago
5 0
I think the sum will be 640
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Answer:

b) x^2 + 6x + 8

Step-by-step explanation:

Para ampliar la habitación cuadrada, se agregaron 4 metros de largo y 2 metros de ancho, como se muestra en la figura.

Deje que la longitud y el ancho de la habitación antes de la expansión sean x.

La nueva longitud de la sala es (x + 4).

El nuevo ancho de la sala es (x + 2).

La nueva área de la sala será:

(x + 4)(x + 2)\\x^2 + 2x + 4x + 8\\x^2 + 6x + 8\\\\

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Step-by-step explanation:

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3 years ago
If x and y vary inversely and x = 5 when y = -3.5, what is the value of x when y = 10?
Solnce55 [7]

Answer:

Step-by-step explanation:

k = xy

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k = (5)(-3.5)

= - 17.5

Finding value of x when y = 10

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3 years ago
Which term best describes lines that meet at right angles ?
Sholpan [36]

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Step-by-step explanation:

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ANTONII [103]

Answer:

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Step-by-step explanation:

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So

N(t) = 285(1.75)^{t}

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8 0
3 years ago
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