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4 years ago

VERY URGENT. BRAINLIEST TO FIRST CORRECT ANSWER ASAP.

Mathematics

1 answer:

vagabundo [1.1K]4 years ago

5 0

Answer:

B. 2 x 10^2 m^3

Step-by-step explanation:

Given

Volume of submarine when full of water= 7.8 × 10³ m³

Total mass of submarine =8× 10⁶ kg

Density of sea water= 1000 kg/m³

Volume to be occupied by sea water at given mass of submarine=?

Apply; Density=mass/volume ⇒⇒volume=mass/density

where M=mas, V=volume, D=density

$V=\frac{M}{D} \\\\\\\\V=\frac{8*10^6}{10^3} =8*10^3$

Excess volume= 8×10³ - 7.8× 10³ = 2×10² m³

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xenn [34]

Answer:

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Step-by-step explanation:

One mole is equal to 6.02214076x10^23 particles. In order to know the number counted by every human on Earth we simply multiply the number of humans times the count a "good counter" can achieve, 4x10^9x7.44x10^9 (for USA, change to 4x10^12 if you use de British English definition). Thus:

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3 years ago

The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. Which equation models t

Elden [556K]

$\bf \textit{Logarithm Cancellation Rules}
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log_a a^x = x\qquad \qquad \boxed{a^{log_a x}=x}\\\\
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3 years ago

Read 2 more answers

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kozerog [31]

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3 years ago

Write the expression fourteen added to the product of seven and a number

victus00 [196]

Answer:

(7×x)+14

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Hope this helps!

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3 years ago

14. Find the coordinates of the circumcenter for ∆DEF with coordinates D(1,1) E (7,1) and F(1,5). Show your work.

dimulka [17.4K]

The centroid C divides the length of each median PY, ZQ, and XR into the ratio of 2:1 as shown in the diagram below

a) CY = 10
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4 years ago