3 years ago

Which is greater ratio than 2:7

Mathematics

1 answer:

blondinia [14]3 years ago

6 0

Answer:

are their supposed to be answer choices

Step-by-step explanation:

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Find a1 if Sn = 89,800, r = 3.4, and n = 10. Round to the nearest hundredth if necessary.

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 $a_1$

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

$a_1=\frac{89,800(1-3.4)}{1-(3.4)^{10}}\\\\a_1=1.04$

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3 years ago

A area of a triangle with 6m and 8m

Gemiola [76]

Answer:

Step-by-step explanation:6 x 8 = 48 = 48/ 1/2 =24

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3 years ago

Simplify (b^4)^3 A.B^9 B.B^3 C.B D.B^12

natulia [17]

(b^4)^3

To simplify when something is raised to two different exponents, multiply the two exponents together:

4 * 3 = 12

You now have b^12.

The answer is D.

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3 years ago

Write 13/40 as a decimal?

borishaifa [10]

0.325 is the answer. :)

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If “x” represents the full price of an item, write an expression to represent the final cost of an item that is 20% off.

zloy xaker [14]

The expression is x -20%

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