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ANEK [815]
3 years ago
13

What is x the second term in thr geometric series 1/4+×+1/36+1/108+...?

Mathematics
1 answer:
Licemer1 [7]3 years ago
3 0
Formula for geometric series
an=a1(r)^n-1

a2=1/4(1/3)^1
a2=1/12
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0.3 continued times 15
seropon [69]
The answer would be 0.3 * 15 = 4.5
3 0
3 years ago
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Angie makes a spicy salsa by adding red pepper flakes to a chunky tomato mix in proportional amounts. For example she mixes 1/2
Nastasia [14]

Answer:

Please read the answer below.

Step-by-step explanation:

1. Let's represent the relationship between red pepper flakes, in teaspoons, to tomato mix, in cups in a table

Red pepper (teaspoons)   1/2    1    1 1/2   2  2 1/2   3  3 1/2   4  4 1/2   5      

Tomato mix (cups)              2     4       6     8    10     12   14     16   18    20

2. Let's represent the relationship between red pepper flakes, in teaspoons, to tomato mix, in cups writing a equation:

t = amount of tomato mix cups

r = amount of red pepper flakes teaspoons

As we can see in the table,

<u>t = 4r</u>

8 0
3 years ago
12) I can run 3.6 miles in 30<br> minutes. How far can I run in<br> 1.5 hours?
raketka [301]
1.5 hours=90 minutes

Because 90 minutes/ 30 minutes is 3, multiply 3.6 miles by 3 and get 10.8 miles as your final answer
3 0
2 years ago
Miss Robin distributed a bag of skittles to her students she gave each student five skittles then ate the 8 that remained in the
Damm [24]

Answer:

27

Step-by-step explanation:

First, subtract 8 from 143 which would give you 135. You then divide 135 by 5 and you get 27

8 0
2 years ago
Use the quadratic formula to find the solutions to the quadratic equation below x^2-6x-5=0
Sonja [21]

Answer:

\large\boxed{x=3-\sqrt{14}\ \vee\ x=3+\sqrt{14}}

Step-by-step explanation:

x^2-6x-5=0\qquad\text{add 5 to both sides}\\\\x^2-6x=5\\\\x^2-2(x)(3)=5\qquad\text{add}\ 3^2\ \text{to both sides}\\\\x^2-2(x)(3)+3^2=5+3^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-3)^2=5+9\\\\(x-3)^2=14\to x-3=\pm\sqrt{14}\qquad\text{add 3 to both sides}\\\\x=3-\sqrt{14}\ \vee\ x=3+\sqrt{14}

8 0
2 years ago
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