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djyliett [7]
2 years ago
11

Pls help with algebra 1 hmk!!

Mathematics
1 answer:
Yuliya22 [10]2 years ago
3 0
The answer is B. because it’s 1 long line, it is “and”; if it were two separate lines, it would be “or”

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julsineya [31]

Answer:

(33 - 5)/7 = 4

Step-by-step explanation:

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Rewrite this equation so that it demonstrates the division property of equality: 12m=42
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Find the sum of the first 47 terms of the following series, to the nearest integer.
Leokris [45]

Answer:

The sum of the first 47 terms of the series, 12, 16, 20, ... S₄₈ is 4,888

Step-by-step explanation:

The given series is;

12, 16, 20, ...,

Therefore, the first term of the series is, a = 12

The common difference of series is found as follows;

The difference between subsequent terms, 12 and 16 is  16 - 12 = 4

The difference between subsequent terms, 16, and 20 is  20 - 16 = 4

Therefore, the common difference, d = 4

The series is therefore an arithmetic projection, AP

The sum of the first 'n' terms of an AP, Sₙ, is given as follows;

S_n = \dfrac{n}{2} \cdot \left [2 \cdot a + (n - 1)\cdot d \right ]

(47/2)*(2*12+(47-1)*4)

The sum of the first 47 terms is therefore given as follows;

S_n = \dfrac{47}{2} \cdot \left [2 \times 12 + (47 - 1)\times 4 \right ] = 4,888

The sum of the first 47 terms of the series, 12, 16, 20, ... S₄₈ = 4,888

5 0
2 years ago
Find the length of the unknown side . round your answer to the nearest tenth
katovenus [111]

Answer:

20cm or A

Step-by-step explanation:

pythagorean theorem

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625=225+b^2

b^2=400

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