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romanna [79]
2 years ago
12

Evaluate all numerical expressions with exponents

Mathematics
1 answer:
IRINA_888 [86]2 years ago
6 0
3y^5
--------
9x^3
is the 1st step you do

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The solution to -16 + x = -30 is -14.<br><br><br> True False
11111nata11111 [884]

Answer:

false

Step-by-step explanation:

7 0
2 years ago
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What calender year does x=12 represent?
Mazyrski [523]

Answer:

December

Step-by-step explanation:

There are 12 months in a year and if the x value is equal to 12, and December is the 12th month of the year then x=December in the calender year.

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3 years ago
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What is the LCD of 2/7 and 9/10
Ksenya-84 [330]
Assuming LCD means Lowest Common Denominator
Assuming by "and" you mean adding the two

Well, you go by the multiples of 7;
7, 14, 21, 28, 35, 42, 49, 56, 63,<u> 70</u>
Multiples of 10;
10, 20, 30, 40, 50, 60, <u>70</u>, 80, 90, 100

Straight away you can see the lowest common multiple is 70,

Now to go about adding them,
2/7 * 10 (both sides) , 20/70
9/10 * 7 (both sides) , 63/70

Then you add the two; 20/70 + 63/70  - now we can add them because they share the same denominator
20/70 + 63/70 = 83/70 = 1 whole 13/70 (simplified)

<u>The LCD is 70

Quick tip, </u>to find a common multiple (not necessarily the lowest) multiply the two denominators. 
8 0
3 years ago
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Find the area of the polygon with E(-3,2), F(1,5), G(5,-1), H(1,-5).
kykrilka [37]

Answer:

40

Step-by-step explanation:

-3   2

               -15  -   2         =      -17

1     5

                 -1    -  25      =     -26

5<em> </em>   -1

                -25    -   (-1)   =     - 24

1   <em> -5</em>

                 2      -   <em>15</em>    =     -13

<em>-3</em>   2

area = |-17 - 26 - 24 - 13|/2 = |-80|/2 = 80/2 = 40

Answer: 40

6 0
3 years ago
The original price is f an item is $25, but after the discount, you only have to pay $18.50. Whats is the discount ( as a percen
katovenus [111]

24%  discount


18.50/25 = .76 or 76%

100% - 76% = 24%


7 0
3 years ago
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