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fiasKO [112]
3 years ago
7

Find the volume of the prism.

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
8 0

Answer:

The answer is 385cm^2

Step-by-step explanation:

7x5x11

Fantom [35]3 years ago
3 0
Your answer is 192.5 cubic centimetres
To find the volume of a prism you need to find the cross-sectional area, in this case the area of the triangle at the front, and multiply it by the prism’s depth.
The equation for the area of a triangle is (base × height)/2, so using that we get (7 × 5)/2 = 35/2 = 17.5 cm²
Now we need to multiply this by the depth, which gives us:
17.5 × 11 = 192.5 cm³
I hope this helps!
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Mrs. Speas has $138 in her bank account during Week #1. At the end of each week, she deposits $55 into her bank account. What is
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The first term is 138

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During the first week she has $138 in his bank account. At the end of each week she deposited $55 into her bank account.

The first term will be 138 .

The common difference is 55 because her bank always increase by $55 dollars every week. The sequence will be 138, 193, 248, 303, 358...…

The difference = 193 - 138 = 55.

The iterative rule for the amount of money Mr Speas has after n weeks can be represented  below

n = number of weeks

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Using AP formula,

sₙ = n/2(2a + (n - 1)d)

sₙ = n/2 (2(138)+ (n - 1)55)

sₙ = n /2(276 + 55n -55)

sₙ = n /2(221 + 55n)

sₙ = 55/2 n² + 221/2 n

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