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d1i1m1o1n [39]
3 years ago
6

Nancy is checking to determine if the expressions x + 4 + x and 6 + 2 x minus 2 are equivalent. When x = 3, she correctly finds

that both expressions have a value of 10. When x = 5, she correctly evaluates the first expression to find that x + 4 + x =14. What is the value of the second expression when x = 5, and are the two expressions equivalent? The value of the second expression is 8, so the expressions are not equivalent. The value of the second expression is 14, so the expressions are equivalent. The value of the second expression is 16, so the expressions are equivalent. The value of the second expression is 18, so the expressions are not equivalent.
Mathematics
2 answers:
Basile [38]3 years ago
8 0

Answer:

I believe is The value of the second expression is 14, so the expressions are equivalent.

Step-by-step explanation:

I took the test and got it right.

anastassius [24]3 years ago
3 0

Answer:

The value of the 2nd expression is 14, so the expressions are equivalent.

Step-by-step explanation:

6 + 2x - 2

6 + 2(5) - 2

6 + (10) - 2

16 - 2

14

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NEED THE ANSWER ASAP! Find the measure of the missing angle X
jasenka [17]

Answer:

50°

<u>In</u><u> </u><u>order</u><u> </u><u>to</u><u> </u><u>determine</u><u> </u><u>the</u><u> </u><u>unknown</u><u> </u><u>angle</u><u>,</u><u> </u><u>be</u><u> </u><u>sure</u><u> </u><u>to</u><u> </u><u>use</u><u> </u><u>the</u><u> </u><u>total</u><u> </u><u>sum</u><u> </u><u>of</u><u> </u><u>1</u><u>8</u><u>0</u><u>°</u><u> </u>

120° - 180°= <em><u>60°</u> </em>( this give you the red side inside the triangle)

Then you simple add the two number inside the triangle

<em><u>6</u><u>0</u><u>°</u></em> + 70° = <em><u>130°</u></em>( then you use this to find the missing corner by subtracting from 180°)

180°- <u>1</u><u>3</u><u>0</u><u>°</u> = 50° this is your missing angle X"

To prove it simple add all the 3 angles inside the triangle add up to 180°

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<u>X</u><u> </u><u>=</u><u> </u><u>5</u><u>0</u><u>°</u>

3 0
3 years ago
35 is less than half a number equals 14. What is the number?<br> Plz help
Nady [450]

Hey there!

Let's write this as an equation, with n representing the unknown number.

0.5n-35=14

First, we add 35 to both sides.

0.5n=49

We divide both sides by 0.5.

n=108

Therefore, your number is 108

I hope this helps!

7 0
3 years ago
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