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Keith_Richards [23]
3 years ago
9

Write a Mathematical proof to show (3x)(5y)(7z) is equivalent to 105xyz

Mathematics
2 answers:
larisa86 [58]3 years ago
7 0
=3*5*7 (xyz)
=15*7 xyz
=105xyz
pav-90 [236]3 years ago
6 0

(3x*5y)*7z

15xy*7z

105xyz

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Rewrite using negative exponent: 5/x^2
STALIN [3.7K]
The rule for negative exponents is that if the exponent is negative to begin with, in order to make it negative, you put it into the denominator of a fraction, and raise it to whatever the power is.  To go from positive exponents (those that are already in the denominator), move it up to the numerator and make the exponent negative. So your solution would be 5x^-2
5 0
3 years ago
Read 2 more answers
Yeah anyone else bored while ur in school so ur browsing brainly??
Margarita [4]

Answer:

I'm Not bored im currently Dying while in school :)

Step-by-step explanation:

8 0
3 years ago
How much this will be ......evaluate -4 (9)(-5)
klemol [59]
-4(9)(-5) = (-36)(-5) because -4(9) = -36. (-36)(-5) = 180
3 0
3 years ago
What is the length of the longest side ?
exis [7]

Answer:

11 feet (Option C)

Step-by-step explanation:

Let the longer side be l and the shorter side be b.

We know that,

→ Perimeter of rectangle = 2 ( longer side + shorter side )

Here,

  • Perimeter of rectangle is 32 feet.

→ 32 = 2 (l + b)

→ 32 = 2l + 2(5)

→ 32 = 2l + 10

→ 32 - 10 = 2l

→ 22 = 2l

→ \sf \dfrac{22}{2} = l

→ 11 = l

→<u> 11 feet = longer side</u>

\therefore <u>Length</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>longer</u><u> </u><u>side</u><u> </u><u>is</u><u> </u><u>1</u><u>1</u><u> </u><u>feet</u><u>.</u>

7 0
3 years ago
Number 2 is the one that needs to be done... number 1 is the example, plz help tho
Annette [7]
2) 

The area of the whole polygon can be found by adding the area of the top square and the bottom rectangle.

Area of square = 1² = 1
Area of rectangle = 3 × 4 = 12

Area of whole polygon = 1 + 12 = 13 inches²

Hope this helps :)
7 0
3 years ago
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