3 years ago

Which expression represents the sum of (2x - 5y) and (x + 2y)?

Mathematics

1 answer:

Fantom [35]3 years ago

8 0

Answer:

B. 3x-3y

Step-by-step explanation:

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Which number is prime? 36 38 37 35

Nadusha1986 [10]

Answer:

Step-by-step explanation:

35 is 1×35/ 5×7

36 is 1×36/ 2×18/ 3×12/ 4×9/ 6×6/ 2²×3²

37 is 1×37

38 is 1×38/ 2×19

8 0

3 years ago

The volume of the Atlantic Ocean is about 3.1⋅10173.1 \cdot 10^{17}3.1⋅10173, point, 1, dot, 10, start superscript, 17, end supe

Serga [27]

Answer: The annual flow of the Mississippi river would fit in the Atlantic ocean $4.92\times10^5$ times.

Step-by-step explanation:

Given: Volume of Atlantic Ocean= $3.1\times10^{17}$ cubic meters

Annual flow of Mississippi river = $6.3\times10^{11}$ cubic meters.

then, the number of times the annual flow of the Mississippi river would fit in the Atlantic ocean = $\dfrac{\text{ Volume of Atlantic Ocean}}{\text{Annual flow of Mississippi river}}$

$=\dfrac{3.1\times10^{17}}{6.3\times10^{11}}\ \ \=0.492063492063\times10^{17-11}\ \ [\dfrac{a^m}{a^n}=a^{m-n}]\\\\=0.492063492063\times10^6\approx4.92\times10^5$