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3 years ago

7

Barb is making a bead necklace.she strings 1 white bead,then 3 blue beads,then 1 white bead,and so on.what is a rule for this pa

ttern

2 answers:

Elis [28]3 years ago

8 0

I white three blue one white three blue

Katyanochek1 [597]3 years ago

6 0

The pattern is 1 white bead, than 3 blue beads, 1 white bead, 3 blue beads, 1 white bead, and 3 blue beads, etc.

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The amount in kilograms, a, of a radioactive element that remains after t hours can be modeled by the equation a= 0.65(0.92)to t

elena-14-01-66 [18.8K]

Answer:

The rate of decrease is 8%

Step-by-step explanation:

we know that

The general equation for the radioactive decay can be written as:

$a=a_0(1-r)^t$

where

a is the amount in kilograms after time t.

a_0 is the original amount of the substance or y-intercept of the function

r is the decay rate, written in decimals.

t is the time

In this problem we have

$a=0.65(0.92)^t$

so

$a_0=0.65\\(1-r)=0.92$

solve for r

$r=1-0.92=0.08$

Convert to percentage

$0.08(100)=8\%$

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3 years ago

Is 3(-4y) equivalent to 6-4y

Leokris [45]

3(-4y)=6-4y

-12y=6-4y

-8y=6

y=-3/4

So the two expressions are equivalent, if and only if y = -3/4.

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3 years ago

At which value in the domain does f(x) = 0?<br> 2<br> 2<br> 4

natita [175]

Answer:

4

Step-by-step explanation:

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3 years ago

ANSWER ASAP PLEASE RIGHT ANSWER GETS BRAINLIST

Natasha_Volkova [10]

Answer:

2

Step-by-step explanation:

We can set up equation for this one.

Let's say the number is X.

the sum of X and 14 can be expressed as : X+14

five times the sum of X and 14 can be expressed as 5(x+14)

and 5(X+14) = 80

$5(x+14) = 80\\x+14 = 80 \div 5 = 16\\x = 16-14 = 2$

The number is 2

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3 years ago

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gavmur [86]

Answer:

68/35 hope this helps

Step-by-step explanation:

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3 years ago

Read 2 more answers