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love history [14]
2 years ago
10

Please help, thanks in advance :)

Mathematics
1 answer:
Daniel [21]2 years ago
7 0

Answer:

The answer to your questions are below

Step-by-step explanation:

a) f(-4)

b) -4

c) is not

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Answer:

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Step-by-step explanation:

S = R - rR

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The first term of an arithmetic sequence is 7 and the sixth term is 22. Find(a)the common difference;(2)(b)the twelfth term;(2)(
SVEN [57.7K]

d = 3 , a₁₂ = 40 and Sx_{100} = 7775

In an arithmetic sequence the nth term and sum to n terms are

<h3>• an = a₁ + (n-1)d</h3><h3>• S_n = \frac{n}{2}[2a + (n-1)d]</h3><h3>where d is the common difference</h3><h3>a₆ = a₁ + 5d = 22 ⇒ 7 + 5d = 22 ⇒ 5d = 15 ⇔ d = 3</h3><h3>a₁₂ = 7 + 11d = 7 +( 11× 3) = 7 + 33 = 40</h3><h3>S₁₀₀ = \frac{50}{2}[(2×7) +(99×3)</h3><h3>       = 25(14 + 297) = 25(311)= 7775</h3>
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2 years ago
Write the ratio of dogs to cats in simplest form.
vlada-n [284]

12/16 becomes 6/8 which later becomes 3/4.

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zubka84 [21]
In slope Intercept for it is ...y=2x+3
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hi

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have a nice day

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