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4 years ago

Can you help with Number 1?

Mathematics

1 answer:

Aleks04 [339]4 years ago

4 0

Answer:

500 in³

Step-by-step explanation:

6.9×8= 55.2

55.2÷2= 27.6

27.6×10= 276

So that part is the volume for the bottom part ⇅

Triangle:

8×8=64

64÷2= 32

32× 7=224

Add it up

276+ 224=500 yd³

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Geometric

$\displaystyle \large{ \frac{a_{n + 1}}{a_n} = r}$

r stands for a common ratio.

To find the value of y, you can check the sequence. If we try subtracting the sequences, the differences are different. That means the sequences are not arithmetric. That only leaves the geometric sequence.

Let's check by dividing sequences.

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Hence, the sequence is geometric.

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$\displaystyle \large{ a_{n + 1} = y } \\ \displaystyle \large{ a_n = 2 } \\ \displaystyle \large{ r = - 3 }$

From the:

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Substitute the values in.

$\displaystyle \large{ \frac{y}{2} = - 3}$

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