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maria [59]
3 years ago
12

How to know if an equation is false, true, or an open scentence

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
7 0
To know when a equation is false, it is simply incorrect. When a equation is true, it will be correct. An open sentence is a statement which contains a variable, and becomes either true or false, depending on the value that replaces the variable. Hope this helps!
beks73 [17]3 years ago
4 0
Well it is true if the problem is the right with the right answer.  If not you have a false eqaution.
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Find the value of y.
olga nikolaevna [1]
Try this option:
1. the sides of the biggest triangle are 16; x and √(16²-x²); the sides of the smallest triange are x;5 and y. The smallest triangle ~ the biggest triangle. Using the property of the similar triangles: 
\frac{x}{5} = \frac{16}{x}, \ then \ x= \sqrt{80}
2. according to the Pyphagorean theorem (in the smallest triangle):
y= \sqrt{ \sqrt{80^2} -5^2} = \sqrt{55}

answer: y=√55.
4 0
3 years ago
PLEASE HELP ASAP!!
Arada [10]
This is like the equivalent to a jar with 4 green balls and 6 white balls, where you are picking 3. (The 4 green balls signify the friends from kindergarten.) 

You want to solve the probability that the first two balls are green and the third is white. 
First draw --> 4 green out of 10 balls --> 4/10 = 2/5 

Second draw --> 3 green out of 9 balls --> 3/9 = 1/3 

Third draw --> 6 white out of 8 balls --> 6/8 = 3/4 


2/5 x 1/3 x 3/4 

= 6/60 

= 1/10 


so the answer is 1/10 (or 10%)
6 0
2 years ago
Read 2 more answers
X+13/2=4 what x equal
Harlamova29_29 [7]

Step-by-step explanation:

x+13÷2×2=4×2

x+13=8

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x=-5

7 0
3 years ago
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Which of these is also (always) a parallelogram? (Select all that apply.)
N76 [4]

Answer:

rhombus i think

Step-by-step explanation:

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Step-by-step explanation:

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