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Scilla [17]
3 years ago
9

PLEASE HELP ME Answer the question in the picture.

Mathematics
2 answers:
Sati [7]3 years ago
7 0

Answer:

3^-2=1/9

3^0=1

3^1=3

3^2=9

nadya68 [22]3 years ago
4 0

Answer:

3^-2 = 1/9

3^0 = 1

3^1 = 3

3^2 = 9

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Brett has a $30 online gift certificate. He plans to buy as many books as he can. The cost of each book is $4. There is also a s
kkurt [141]

Answer:

7 books

Step-by-step explanation:

make an equation

x = # of books each book is $4 so its 4x

the shipping fee no matter how many books he buys will be $2 so it's just 2

the equation looks like this:

4x + 2 = 30

we set equal to 30 cuz he can't spend more than $30

solve for x

4x = 30 -2

4x = 28

x = 7

Brett can buy no more than 7 books.

7 0
3 years ago
Jacob is a plumber. Due to increased material costs, he puts all his prices up by 7%. He now chargers R320 per hour for her serv
Lorico [155]

Answer:

R290.1

Step-by-step explanation:

Let

x = charge before he put his prices up

New charge = R320

Percentage increase in price = 7%

x + 7% of x = 320

x + 0.07 * x = 320

x + 0.07x = 320

1.07x = 320

x = 320/1.07

x = 299.06542056074

Approximately

x = R290.1

Charge before he put his prices up = R290.1

4 0
2 years ago
8+0=18<br> Only answer<br><br> Plz someone very intelligence
Free_Kalibri [48]
I think
8+10=18
just place 1 before 0
3 0
3 years ago
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A recipe for pancakes calls for 1 cup of pancake mix and 3/4 cup of milk. How much milk is needed to make 1/2 the recipe
Mice21 [21]
I would think you would use 1/3 of a cup but I am not sure.Hope it helps!
8 0
3 years ago
Read 2 more answers
If a= (4,-5) and b= (7,-9), what is the length of ab
faust18 [17]
<span>A (4,-5)
B (7,-9)

</span>AB= \sqrt{(x_A-x_B)^2+(y_A-y_B)^2} \\  x_A=4; \ \ x_B=7; \ \ y_A=-5; \ \ y_B=-9; \\  \\ AB= \sqrt{(4-7)^2+(-5-(-9))^2}= \sqrt{(-3)^2+4^2} =   \sqrt{25}=5<span>
</span>
5 0
3 years ago
Read 2 more answers
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