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77julia77 [94]
3 years ago
6

Find the LCM of the numbers using prime factorizations. 36,60

Mathematics
1 answer:
alexandr402 [8]3 years ago
5 0
36=2*2*3*3=2²*3²
60=2*2*3*5=2²*3*5

LCM(36,60)=2*2*3*3*5=2²*3²*5=180
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Use the rules of exponents to simplify the expressions. Match the expression with its equivalent value.
Lelechka [254]

Answer:

1) \frac{(-2)^{-5}}{(-2)^{-10}}=-32

2) 2^{-1}.2^{-4} = \frac{1}{32}

3) (-\frac{1}{2} )^3.(-\frac{1}{2} )^2=-\frac{1}{32}

4) \frac{2}{2^{-4}} = 32

Step-by-step explanation:

1) \frac{(-2)^{-5}}{(-2)^{-10}}

Solving using exponent rule: a^{-m}=\frac{1}{a^m}

\frac{(-2)^{-5}}{(-2)^{-10}}\\=(-2)^{-5+10}\\=(-2)^{5}\\=-32

So, \frac{(-2)^{-5}}{(-2)^{-10}}=-32

2) 2^{-1}.2^{-4}

Using the exponent rule: a^m.a^n=a^{m+n}

We have:

2^{-1}.2^{-4}\\=2^{-1-4}\\=2^{-5}

We also know that: a^{-m}=\frac{1}{a^m}

Using this rule:

2^{-5}\\=\frac{1}{2^5}\\=\frac{1}{32}

So, 2^{-1}.2^{-4} = \frac{1}{32}

3) (-\frac{1}{2} )^3.(-\frac{1}{2} )^2

Solving:

(-\frac{1}{2} )^3.(-\frac{1}{2} )^2\\=(-\frac{1}{8} ).(\frac{1}{4} )\\=-\frac{1}{32}

So, (-\frac{1}{2} )^3.(-\frac{1}{2} )^2=-\frac{1}{32}

4) \frac{2}{2^{-4}}

We know that: a^{-m}=\frac{1}{a^m}

\frac{2}{2^{-4}}\\=2\times 2^4\\=2(16)\\=32

So, \frac{2}{2^{-4}} = 32

3 0
3 years ago
the sales tax for the food Jordan bought is 0.87 she has a coupon for 1.75 off any purchase use your answer for exercise 16 to f
krok68 [10]
Related to ur last question......food totaled 17.42

17.42 - 1.75 = 15.67...this is with the coupon added
15.67 + 0.87 = 16.54....this is the final total....with tax included

so ur answer is 16.54
3 0
3 years ago
Read 2 more answers
brooklyn bought 8 bags of the same dog food. She has a $5 coupon. She spent $91. How much was each bad of dog food?
blsea [12.9K]

Answer:

$12

Step-by-step explanation:

Hi there!

What we know:

  • Brooklyn bought 8 bags of dog food
  • Brooklyn also used a $5 coupon
  • The total was $91

Therefore, 8 × (cost of 1 bag) - 5 = 91

Form an equation with x as the cost of 1 bag of dog food:

8 × (cost of 1 bag) - 5 = 91

8x-5=91

Add 5 to both sides

8x-5+5=91+5\\8x=96\\

Divide both sides by 8

\frac{8x}{8} = \frac{96}{8} \\x=12

Therefore, 1 bag of dog food costs $12.

I hope this helps!

5 0
3 years ago
If the baker’s percentage for raisins in a raisin bread formula is 8% and the baker’s percentage for flour is 100%, what amount
svet-max [94.6K]

Answer: 1.12 pounds.


Step-by-step explanation:

1. You have the following information given in the problem above:

-The baker’s percentage for raisins in a raisin bread formula is 8%.

-The baker’s percentage for flour is 100%

2. Therefore, the amount of raisins that are needed if 14 pounds of flour are used is:

\frac{(14)(8)}{100}=1.12 pounds


3 0
3 years ago
2(x - 6) Use Distribution
Galina-37 [17]

To distribute you first need to multiply 2 by x which equals 2x. Then you need to multilply 2 by -6 and that equals -12. Your final answer would be 2x-12

8 0
3 years ago
Read 2 more answers
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