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4 years ago

11

The Martinez family visit the aquarium and saw 483 salt water fish and 358 freshwater fish later that month workers moved 139 fi

sh to a new aquarium how many fish we Remained

1 answer:

VARVARA [1.3K]4 years ago

6 0

Answer:

702

Step-by-step explanation:

The total number of Fish in the aquarium is got by adding up the

Number of Salt Water Fish, and

Number of Fresh water Fish

Number of Salt water Fish = 483

Number of Fres hwater Fish = 358

Total Fish in Aquarium = 483 + 358 = 841

Later, 139 were moved to a new aquarium, the number of fish remaining is 841 MINUS 139. That is:

841 - 139 = 702 fish remaining now

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Answer:

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4 years ago

Suppose that X is a random variable with mean 30 and standard deviation 4. Also suppose that Y is a random variable with mean 50

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Answer:

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Step-by-step explanation:

In general

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how in this problem Cov[XY] = 0, then

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3 years ago

What is the length of BC , rounded to the nearest tenth?

Arte-miy333 [17]

Step $1$

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<u>Find the length of the segment AB</u>

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substitute the values

$AB^{2}=5^{2}+12^{2}$

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Step $2$

In the right triangle ADB

<u>Find the cosine of the angle BAD</u>

we know that

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Step $3$

In the right triangle ABC

<u>Find the length of the segment AC</u>

we know that

$cos(BAC)=cos (BAD)=\frac{5}{13}$

$cos(BAC)=\frac{adjacent\ side }{hypotenuse}=\frac{AB}{AC}$

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solve for AC

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Step $4$

<u>Find the length of the segment DC</u>

we know that

$DC=AC-AD$

we have

$AC=33.8\ units$

$AD=5\ units$

substitute the values

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<u>Find the length of the segment BC</u>

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$BC^{2} =BD^{2}+DC^{2}$

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3 years ago

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Answer:

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Therefore, each of the volunteers donated $\frac{470}{32-n}$ millimeters of blood.

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3 years ago

Read 2 more answers