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arsen [322]
2 years ago
13

Nuclear Physics ProblemsHelp me for 50 points ​

Mathematics
1 answer:
vampirchik [111]2 years ago
6 0

Suggestion: tell me that you want answer of all or anyone.

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△ABC ≅ △DEF, EF = x 2 - 7, and BC = 4x - 2.
Artist 52 [7]

Answer:

Therefore the value of x is 5.

Step-by-step explanation:

Given:

△ABC ≅ △DEF,

EF = x 2 - 7, and

BC = 4x - 2.

To Find:

the values of x. = ?

Solution:

△ABC ≅ △DEF      ........Given

If two Triangles are congruent then the Corresponding Parts of Congruent Triangles are Congruent.

∴ BC ≅ EF   ...................CPCTC

Substituting the values we get

4x-2=x^{2}-7\\x^{2}-4x-5=0

Now By Factorizing we get

x^{2}-5x+x-5=0\\x(x-5)+1(x-5)=0\\(x+1)(x-5)=0\\x+1=0\ or\ x-5=0\\x=-1\ or\ x=5\\x\ cannot\ be\ negative\\\therefore x=5

Therefore the value of x is 5.

8 0
4 years ago
How does it satisfy a linear function
Alina [70]
Multiple values of y for a single value of x is a sure giveaway that this is NOT a function.  Please review definitions of "function."  A function would be represented if no x value has more than one y value associated with it.
5 0
3 years ago
4 1/2 + 1 + 2 + 1 1/2 + 4 + 1/2
mafiozo [28]
Your answer would be 17 1/2
7 0
3 years ago
What is 2,912 rounded to the nearest thousand
FrozenT [24]

Answer:

3,000

Step-by-step explanation:

Find the number in the thousand place  2  and look one place to the right for the rounding digit  9 . Round up if this number is greater than or equal to  5  and round down if it is less than  5 .

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4 years ago
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If you want brainiest than come here
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What will happen once we enter that class code?
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