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3 years ago

Help again pls still dont understand

Mathematics

2 answers:

bearhunter [10]3 years ago

7 0

1) 3 spaces
2) 2 spaces
3) 4 spaces
4) 5 spaces

explanation: you look at the right side of each number, for example 14.95 x 0.41
how many numbers are to the right of the decimal?

butalik [34]3 years ago

5 0

Answer:

3, 2, 4, 5

Step-by-step explanation:

1) 8.56 * 2.1 will move 3 spaces.

8.56 * 2.1 = 17.976.

2) 80.2 * 4.9 will move 2 spaces.

80.2 * 4.9 = 392.98.

3) 14.95 * 0.41 will move 4 spaces.

14.95 * 0.41= 6.1295.

4) 1.043 * 0.65 will move 5 spaces.

1.043 * 0.65 = 0.67795.

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xxMikexx [17]

Answer:

$a_1=1.04$

Step-by-step explanation:

We have a geometric sequence with:

$Sn = 89,800$ , $r = 3.4$ , and $n = 10$

Where

Sn is the sum of the sequence

r is the common ratio

$a_1$ is the first term in the sequence

n is the number of terms in the sequence

The formula to calculate the sum of a finite geometric sequence is:

$S_n=\frac{a_1(1-r^n)}{1-r}$

Then:

$89,800=\frac{a_1(1-(3.4)^{10})}{1-3.4}$

Now we solve for $a_1$

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