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aleksandrvk [35]
3 years ago
15

18 POINTS I need it ASAP !

Mathematics
2 answers:
Lena [83]3 years ago
7 0

Answer:

343

Step-by-step explanation:

\frac{7^{12} * 7^{9}}{(7^{6})^{3}  } is the equation.

1. You can add the two exponents in the numerator --> 7^{21}

2. You can multiply the exponents in the denominator --> 7^{18}

(the equation is now \frac{7^{21} }{7^{18} })

3. Subtract the exponents to get 7^{3}

7^{3} = 343

Nat2105 [25]3 years ago
3 0

Answer:

7 to the power of 3

7 3

Step-by-step explanation:

7 21/ (7 6) 3

7 21/ 7 18

Cross it out and answer is 7 3

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Sipho made a 12.5% when he sold a coat for E437.50 .calculate original cost of the coat​
kaheart [24]

Answer:

E500

Step-by-step explanation:

Given x the original price of the coat

437.5 + 0.125x = x

437.5 = 0.875x

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3 years ago
BRAINLIEST ANSWER TO ANYONE WHO HELPS ME FIND QUESTIONS 1,2 AND 3
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1. a)CK²=CH²+HK²,  CH - radius
CH²=CK²-HK²=50²-30²=2500-900=1600 ft²
CH=40 ft  -- radius
b) cos(KCH)= CH/CK=40/50=4/5
KCH=arccos(4/5)≈36.87°
2)C=2πr≈2*3.14*40=251.2 ft
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4 years ago
To solve 3x squared minus 9, do i have to find the square root of both numbers first?
Mars2501 [29]
Nope, and the answer would be Zero
Hope this helps :)
3 0
4 years ago
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Manchester Community College
frozen [14]

Answer:

1/3

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