3 years ago

What are the first three terms of the Arithmetic Sequence a, = 15 - 2(n - 1)?

Mathematics

1 answer:

IgorC [24]3 years ago

4 0

Answer:

Step-by-step explanation:

Plug 1, 2, and 3 into n and you'll get 15, 13, and 11 respectively

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Find the missing Side lengths.

adelina 88 [10]

{ Answer(s) }

Left side of big triangle (X & Y) : 15

Bottom side of big triangle (Y & Z) : 20

{ Explanation }

We know the top sides of both triangles. To find out how many units they are separated by, we need to divide 5 by 25.

25 / 5 = 5

Now we can continue.

3 * 5 = 15

4 * 5 = 20

The missing sides are 15 and 20.

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4 years ago

Jim is fencing a rectangle yard 36ft by 28ft.He is 150ft of fencing and will be installing a 5ft gate on one end. How much fenci

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The fencing will have left 190.

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4 years ago

I will mark the the first person to answer correctly brainliest

ryzh [129]

Answer:

Step-by-step explanation:

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2 years ago

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You want to enlarge the picture by a factor of 4 from its current size of 5 inches by 7 inches what is the size of the enlarged

blondinia [14]

Answer:

20 inches by 28 inches

Step-by-step explanation:

The current size of the picture is 5 inches by 7 inches

If we want to enlarge the picture by a factor of 4, the perimeter will also increase by the factor of 4.

New dimension = 4(old dimensions)

= 4(5 inches by 7 inches)

= 20 inches by 28 inches

Hence, the size of the enlarged picture is 20 inches by 28 inches.

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3 years ago

A loan of $47,000 is made at 4.5% interest, compounded annually. After how many years will the amount due reach $63,000 or more?

Alex Ar [27]

$A=P(1+r)^t$ is comounded yearly formula

rat ie 4.5%
P=47000
solve for when A=63000

$63000=47000(1+0.045)^t$
divide both sides by 47000
$\frac{63}{47} =(1.045)^t$
take the ln of both sides
$ln(\frac{63}{47}) =ln((1.045)^t)$
$ln(\frac{63}{47}) =t(ln(1.045)$
divide both sides by ln(1.045)
$\frac{ln(\frac{63}{47})}{ln(1.045)}=t$
using calculator
6.656=t
so after about 6.7 years

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4 years ago