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nasty-shy [4]
3 years ago
6

Im in trouble pls help...........

Mathematics
2 answers:
Juliette [100K]3 years ago
6 0

Answer:

92

Step-by-step explanation:


katrin [286]3 years ago
3 0
C = 180 - 140 = 40

x + 2 + 2x + 40 = 180
3x + 42 = 180
3x = 138
x = 46

B = 2x
B = 92
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Plz..... Solve this questions for me...
faust18 [17]

6.\\\text{We know}\ 9=3^2.\ \text{Therefore}\\\\9^2=(3^2)^2\\\\\text{use}\ (a^n)^m=a^{nm}\\\\9^2=(3^2)^2=3^{2\cdot2}=3^4\\\\\boxed{3^4=9^2}\\=================

7.\\METHOD\ 1:\\\\\sqrt{7^4}=\sqrt{7^{2\cdot2}}\\\\\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt{(7^2)^2}\\\\\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=\boxed{7^2}\\\\METHOD\ 2:\\\\\text{use}\ a^\frac{m}{n}=\sqrt[n]{a^m}\\\\\sqrt{7^4}=7^\frac{4}{2}=\boxed{7^2}\\=================

8.\\5^a\times5^b=5^{11}\\\\a)\\\text{use}\ a^n\times a^m=a^{n+m}\\\\5^a\times5^b=5^{a+b}\\\\5^{a+b}=5^{11}\Rightarrow a+b=11\\\\11\ \text{is odd. The sum of even and odd is odd. Therefore}\ a\ \text{and}\ b\ \text{can't be even.}\\--------------------\\\\b)\\5\ \text{solutions}\\\\11=5+6\\11=4+7\\11=3+8\\11=2+9\\11=1+10

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deff fn [24]

Answer:

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Step-by-step explanation:

7 0
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arsen [322]

Answer:

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7 0
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Answer:

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Step-by-step explanation:

Lengths of the given polygon = (7x + 2) units and (6x - 5) units

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Therefore, difference in the lengths of the polygons is (x + 7) units.

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4 years ago
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