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skelet666 [1.2K]
3 years ago
9

Please help me with this

Mathematics
2 answers:
Kryger [21]3 years ago
6 0

Answer:

X=18

Step-by-step explanation:

5(18)+9= 99

7(18)-27= 99

malfutka [58]3 years ago
4 0

Answer:

X=18

Step-by-step explanation:

.................

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The sum of two consecutive integers is 471
Elden [556K]

Answer:

235,236

Step-by-step explanation:

5 0
3 years ago
3x+4=-4x-1<br> solve for x
rewona [7]

Answer: x=−5/7

Step 1. Add 4x to both sides of the equation.

3x+4+4x=−4x−1+4x

7x+4=−1

Step 2. Now you subtract 4 from both sides.

7x+4−4=−1−4

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Step 3. Then divide both sides by 7.

7x/7=-5/7

Final Answer: x=-5/7

Hope I could help! :)

4 0
3 years ago
Please help me I don’t remember how to do it
icang [17]
In this problem, you must change the signs of everything in the parenthesis, which will come to 3x^2 + x - 5x^2 - x + 4. Add like terms, and you will end up with -2x^2 + 4, which is answer choice A. Hope this helped
6 0
3 years ago
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How do i plug in a sin equation for missing side length into a calculator
Anna11 [10]

\\ \rm\Rrightarrow sin\theta=\dfrac{Perpendicular}{Hypotenuse}

\\ \rm\Rrightarrow sin28=\dfrac{x}{20}

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4.25x10 to the power of 3 in standard notation
Leviafan [203]

The basic idea is that multiplying by 10 just moves the decimal point one place to the right.  It makes the number bigger.

Examples:

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3.1 x 10 x 10 = 31 x 10 = 310

Each time you multiply by another 10, the decimal point moves one more place.

In your exercise, 10^3 says you're going to multiply by 10 <u>three</u> times in a row.  So that will move the decimal point 3 places to the right.

So what do you get if you move the decimal in 4.25 three places to the right?

8 0
3 years ago
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