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3 years ago

6

Write an expression that gives the requested sum. the sum of the first 18 terms of the geometric sequence with first term 3 and

common ratio 2

1 answer:

alina1380 [7]3 years ago

8 0

I got 786432 when I use a(r^n-1)/(r-1)

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What's the percent decrease for 3 to .5

In-s [12.5K]

The percent decrease for 3 to .5 is 83.33%

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3 years ago

PLZ HELP AND SHOW YOUR WORK <3333<br><br><br> Substitution.<br><br> 3x+2y=11<br><br> y=5x-1

liraira [26]

Hey there! :D

Substitute y for 5x-1.

3x+2y=11

y=5x-1

3x+2(5x-1)=11

3x+10x-2=11

13x-2=11

13x=13

x=1

Now, plug that in to find y.

y=5x-1

y=5(1)-1

y=5-1

y=4

(1,4) <== the solution

I hope this helps!
~kaikers

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3 years ago

¿Completa las tablas, anota la cantidad que falta para completar la cifra de la derecha.?

nalin [4]

Answer:

Lo siento. :(

Step-by-step explanation:

Me preguntaba lo mismo. Desearía poder ayudar, pero también necesito ayuda.

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3 years ago

1. Find X<br><br> A. 16.45<br> B. 15.92<br> C. 12<br> D. 11.5

love history [14]

Answer:

A is your answer

Step-by-step explanation:

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3 years ago

last week, ezra's sold 1/3 of tangerines and Anthony sold 3/4 of tangerines as ezra's did. how many boxes of tangerines did Anth

Bond [772]

Answer:

¼ box

Step-by-step explanation:

Ezra sold ⅓ box of tangerines.

Anthony sold ¾ as many as Ezra = ¾ × ⅓ box

Cancel the 3s = ¼ × ¹/₁ box

Multiply numerators and denominators = ¼ box

Anthony sold ¼ box of tangerines.

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3 years ago