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Vlad [161]
3 years ago
12

Apply the distributive property to -8(y-1 1/8) to get an equivalent expression

Mathematics
1 answer:
Ksivusya [100]3 years ago
4 0

Answer:

-8y + 1

Step-by-step explanation:

-8(y - 1/8)

multiply both the variable and the number inside the parentheses

(-8)(y) - (1/8)(-8)

-8y + 1

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Nickel-63 has half-life of about 96 years. after 336 years,about how many milligrams of an 800 mg sample will remain?
vagabundo [1.1K]
F=ar^t if the half-life is 96 years...

.5=r^96

ln(.5)=96lnr

ln(.5)/96=lnr

r=e^((ln.5)/96)

f=800e^(336(ln.5)/96)

f=70.71

So about 71mg will remain after 336 years.


5 0
3 years ago
Read 2 more answers
The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final pressure of the gas, assuming co
salantis [7]

Answer:

(b) 0.30 atm

Step-by-step explanation:

Given data

Initial pressure= 1.2atm

Initial volume= 1.0L

Final volume= 4.0L

Final pressure= ???

Let us apply the gas formula to find the Final pressure

P1V1= P2V2

Substitute

1.2*1= x*4

Divide both sides by 4

1.2/4= x

x= 0.3atm

Hence the final pressure is 0.3 atm

5 0
2 years ago
Which of the following could be the lengths of the sides for a triangle that is similar to the triangle shown?
artcher [175]
A,,,,they are multiples of the lengths indicated
6 0
3 years ago
Simplify 27 to the negative 2 thirds power. 9 1 over 9 negative 1 over 9 −9
zimovet [89]

Answer:

The answer is 1/9 ⇒ the second answer

Step-by-step explanation:

* In the exponential functions we have some rules

(1) b^(-m) = 1/(b^m)  (for all nonzero real numbers b)

- If we have negative power we reciprocal the base

 to get positive power

(2) (b^m)^n = b^(mn)

- If we have power over power we multiply them

* In our problem: (27)^{-\frac{2}{3}}

- At first change 27 to b^n

∵ 27 = 3 × 3 × 3 = 3³

∴ 27^{-\frac{2}{3}}=(3^{3})^{-\frac{2}{3}}

* Lets use rule (2)

∴ 27^{-\frac{2}{3}}=3^{-2} ⇒ 3 × -2/3 = -2

* Use rule (1)

∴ 3^{-2}=\frac{1}{3^{2}}=\frac{1}{9} ⇒ reciprocal the fraction to change the sig of the power

* The answer is 1/9

6 0
3 years ago
Rewrite in simplest terms: −9(5s−6)+9s
slega [8]

Answer:

-36s + 54

Step-by-step explanation:

−9(5s − 6) + 9s =

-45s + 54 + 9s =

-36s + 54

8 0
3 years ago
Read 2 more answers
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