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astra-53 [7]
3 years ago
9

A fish is swimming at a constant rate for the ocean floor the equation Y equals negative 7X -3 can be used to represent this sit

uation, where y is the depth of the fish in meters below sea level and x is the number of seconds the fish has been swimming. Which statement best describes the depth of the fish, given this equation?
Mathematics
1 answer:
Mashutka [201]3 years ago
7 0

Answer:

the answer choices are 109 89 849 99

Step-by-step explanation:

yep

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Divide 110 g of salt in ratio 5 : 8 : 9; what is the result ?
vekshin1

110grams÷22 =5

5+8+ 9 =22

5 x5=25

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The ratio is 25:40:45

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In an arithmetic sequence, = 5 and = 11.
Free_Kalibri [48]

Answer:

1134.62 (THE SUM OF 20 TERMS)

Step-by-step explanation:

First we write out our given information:

a8=2a2

a11=18

an is an arithmetic sequence.

Where here an means the nth term of our sequence.

What does an arithmetic sequence mean? It means to get to the next term in your sequence you add a constant (c) each time:

an+1=an+c

Equivalently:

an+1−an(n+1)−n=c

So an is of slope c (c2 is another constant):

an=cn+c2

Where here c2=a0 (Substitute in n=0 and see why that has to be the case if we let a0 exist)

Now we use the other given information to try to come up with a solution.

Let n=2:

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Let n=8, using the above equation we have:

a8=8c+c2=2a2=4c+2c2

Let n=11

a11=18

a11=11c+c2

But a11−a8=(11c+c2)−(8c+c2)=3c

Hence, a11=3c+a8

a11=3c+4c+2c2=18

a11=3c+8c+c2=18

5 0
2 years ago
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I believe the answer is B and E
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Answer:

A right triangle

Step-by-step explanation:

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2 years ago
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