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prohojiy [21]
3 years ago
8

Rectangle B is shown below. Nadia drew a scaled version of Rectangle B using a scale factor of 1/5 and labeled it Rectangle C wh

at is the area of Rectangle C
Mathematics
1 answer:
34kurt3 years ago
4 0

Answer:

The answer is 2

Step-by-step explanation:

1/5 times 5 is 1

1/5 times 10 is 2

1x2 is 2

Answer is 2

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X=v-w+u solve for u
katovenus [111]

Answer:

u = -v + w + x

Step-by-step explanation:

Solve for u:

x = u + v - w

x = u + v - w is equivalent to u + v - w = x:

u + v - w = x

Subtract v - w from both sides:

Answer: u = -v + w + x

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3 years ago
Is 7.787887888... a rational number?
Ugo [173]

Answer:

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5 0
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An arithmetic sequence has t1=5 and t2=8 find tn and sn
RoseWind [281]

Answer:

a_n=2+3n

\displaystyle S_n=\frac{7n+3n^2}{2}

Step-by-step explanation:

<u>Arithmetic Sequences </u>

The arithmetic sequences are identified because any term n is obtained by adding or subtracting a fixed number to the previous term. That number is called the common difference.

The equation to calculate the nth term of an arithmetic sequence is:

a_n=a_1+(n-1)r

Where

an = nth term

a1 = first term

r   = common difference

n  = number of the term

The sum of the n terms of an arithmetic sequence is given by:

\displaystyle S_n=\frac{a_1+a_n}{2}\cdot n

We are given the first two terms of the sequence:

a1=5, a2=8. The common difference is:

r = 8 - 5 = 3

Thus the general term of the sequence is:

a_n=5+(n-1)3=5+3n-3=2+3n

\boxed{a_n=2+3n}

The formula for the sum is:

\displaystyle S_n=\frac{5+2+3n}{2}\cdot n

\displaystyle S_n=\frac{7+3n}{2}\cdot n

Operating:

\boxed{\displaystyle S_n=\frac{7n+3n^2}{2}}

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<span>14a - 13b
Hope this helps.</span>
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3 years ago
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