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3 years ago

Solve the equation using distributive property and properties of equality.1/2(x+6)=18

2 answers:

7 0

X=30
1/2(x+6) distribute 1/2
1/2x +3= 18. Take out 3 from both sides by subtracting
1/2x = 15 get rid of the1/2by multiplying 2
X=30

REY [17]3 years ago

6 0

I'm sorry but I don't understand what "distributive property" and "properties of equality" means - English isn't my native language.

But the value of x is 30

0,5 * (30 + 6) = 18

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Given $a \equiv 1 \pmod{7}$, $b \equiv 2 \pmod{7}$, and $c \equiv 6 \pmod{7}$, what is the remainder when $a^{81} b^{91} c^{27}$

Blizzard [7]

$\begin{cases}a\equiv1\pmod7\\b\equiv2\pmod7\\c\equiv6\pmod7\end{cases}$

$a^{81}\equiv1^{81}\equiv1\pmod7$

$b^{91}\equiv2^{91}\pmod7$

$2^{91}\equiv(2^3)^{30}\times2^1\equiv8^{30}\times2\pmod7$
$8\equiv1\pmod7$
$2\equiv2\pmod7$
$\implies2^{91}\equiv1^{30}\times2\equiv2\pmod7$

$c^{27}\equiv6^{27}\pmod7$

$6^{27}\equiv(-1)^{27}\equiv-1\equiv6\pmod7$

$\implies a^{81}b^{91}c^{27}\equiv1\times2\times6\equiv12\equiv5\pmod7$

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3 years ago

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vladimir2022 [97]

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Step-by-step explanation:

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Vesna [10]

Answer:

Option B
Option C
Option E

Explanation:

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Option C is true because the coefficient of a term is basically the constant. If there is no constant, then the coefficient is 1.
Option E is true because the expression has been multiplied by 5.

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Inessa [10]

Answer:

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Step-by-step explanation:

Since, both terms are perfect squares, factor using the different square formulas. a^2-b^2=(a+b)(a-b) where a = x and b = 8...

⭐ Answered by Kakashi ʕ •㉨• ʔ⭐

⭐ Brainliest would be appreciated, ⭐

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elena55 [62]

40:68.6

Hoped it helps

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