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Orlov [11]
3 years ago
7

Which expression has the same value as the one below?

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
6 0
A is the correct answer my dude

german3 years ago
5 0
 -12+9 is the correct answer
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Please help :c How do I convert 19.3g/mL to lb/in^3? (manually) I tried to so 19.3g (453.592lb)/1g but I'm not sure how to chang
Alecsey [184]
1 pound = 453.59237 grams
1 cubic inch = 16.387064 milliliters

19.3 grams * 1 pound / 453.59 grams = <span> <span> <span> 0.0425494389 </span> </span> </span> pounds

1 cubic inch * 16.387
<span> <span> 0.0425494389 * 16.387 =  </span></span><span><span><span>0.6972576553 pounds / cubic inch
</span> </span></span>

3 0
3 years ago
Solve for x.<br><br> x2 + 4x - 21 = 0
Anton [14]
2x + 4x - 21 = 0
6x - 21 = 0
6x = 21
x=3.5
4 0
2 years ago
What is the simplified form of the following expression?
kogti [31]

Answer:

\sqrt{3}


Step-by-step explanation:

We will be using 2 properties of radicals in this simplification (outlined below).

  • \sqrt{a*b}=\sqrt{a}* \sqrt{b}
  • \sqrt{a}*\sqrt{a}=a

<em>Let's simplify this:</em>

2\sqrt{27} +\sqrt{12} -3\sqrt{3}-2\sqrt{12}\\ =2\sqrt{9*3}+\sqrt{4*3} -3\sqrt{3}-2\sqrt{4*3} \\=2\sqrt{9} \sqrt{3} +\sqrt{4} \sqrt{3}-3\sqrt{3}-2\sqrt{4} \sqrt{3} \\=2(3)\sqrt{3}+(2)\sqrt{3} -3\sqrt{3}-2(2)\sqrt{3} \\ =6\sqrt{3} +2\sqrt{3}-3\sqrt{3}-4\sqrt{3}  \\=\sqrt{3}


First answer choice is right.

5 0
3 years ago
I just really need help with these 3 questions.
Oksanka [162]
For the 11 the first one is x = 4y and for the 2 one it will be x=−6−2y
8 0
3 years ago
Look at this set of 5 numbers: 21471 By how much would the mode decrease if the number 1 were added to the set?
Fofino [41]

Answer:

  • Zero

Step-by-step explanation:

The mode is the number of most repeated data in the set.

Given set 2, 1, 4, 7, 1 has mode 1 (repeated twice).

If we add 1 to the set the mode will remain 1 as it will repeat three times, so the mode won't change.

There is no change in mode, so the mode decrease is zero.

6 0
2 years ago
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