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DaniilM [7]
3 years ago
15

5[x-(4x-5)]=3-8x Solving for x

Mathematics
1 answer:
stiv31 [10]3 years ago
7 0
5(x-4x+5)=3-8x
5x-20x+25=3-8x
-15x+25=3-8x
-7x+25=3
-7x=-22
x= 22/7

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Use the rules of exponents to simplify the expressions. Match the expression with its equivalent value.
Yuliya22 [10]

Answer/Step-by-step explanation:

1. \frac{(-2)^{-5}}{(-2)^{-10}}

Apply the Quotient rule: i.e. \frac{x^n}{x^m} = x^{n - m}

= (-2)^{-5 - (-10)} = (-2)^5} = -32

2. 2^{-1} * 2^{-4}

Apply the product rule: i.e. x^n * x^m = x^{n + m}.

= 2^{-1 + (-4)} = 2^{-1 - 4}

= 2^{-5}

Apply the negative exponent rule: i.e. x^{-n} = \frac{1}{x^n}

= 2^{-5} = \frac{1}{2^5}

= \frac{1}{32}

3. (-\frac{1}{2})^3 * (-\frac{1}{2})^2

Apply product rule

= (-\frac{1}{2})^{3 + 2}

= (-\frac{1}{2})^{5}

= -\frac{1^5}{2^5}

= -\frac{1}{32}

4. \frac{2}{2^{-4}}

Apply the rules of 1 and quotient rule

= 2^{1 - (-4)}

= 2^{1 + 4}

= 2^{5} = 32

6 0
4 years ago
What’s the unit rate of 4,500 kilobytes in 6 minutes
Sonbull [250]

Answer:

Step-by-step explanation: easy.. 4500×6=243000

:) your welcome

5 0
3 years ago
If x^(3/5) = 1.84, then x^2 = ?<br> Show Work.<br> A.) 7.63<br> B.) 10.40<br> C.) 21.15
svetlana [45]
X^(3/5) = 1.84

x^(3/5) = (1.84)

Raise both sides of the equation to (5/3).  

This is so that on the side with x,  3/5 * 5/3 = 1.

(x^3/5 )^5/3 = (1.84)^(5/3)

x^(3/5  *  5/3) = 1.84^(5/3)

x^1 = 1.84^(5/3)
 
x = 1.84^(5/3)

But remember we are solving for x^2.

x = 1.84^(5/3)

x^2 = (1.84^(5/3))^2

x^2 =  1.84^(5/3  *2 )

x^2 =  1.84^(10/3)

Use a calculator here.

x^2 =  1.84^(10/3) ≈ 7.63

Option A.

Cheers!
5 0
3 years ago
The sum of 2 numbers is 44 the smaller number is 16 less than the larger number what are the numbers
Anon25 [30]
X=27 and y=11
if you let each number equal x and y we know the sum is 38 so x+y=38
and the smaller is 16 less than the larger
. so if we say the smaller number is 7 then x-16=y
these can be solved as a simultaneous equation. x+(x-16)=38
2x-16=38
2x=54
x=27
(27)-16=y
y=11
so the answer is x=27 y=11
4 0
3 years ago
Simplify. What is your answer 8x + 9d + 3x -5d
BlackZzzverrR [31]

Answer:

11x + 4d

Step-by-step explanation:

8x + 9d + 3x -5d

To simplify this we have to group them by their like terms i.e.

= 8x + 3x + 9d - 5d

= 11x + 4d

Mark  brainliest

7 0
4 years ago
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