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-BARSIC- [3]
3 years ago
14

An equation that is true for every value of the variables is a(n)

Mathematics
2 answers:
svetlana [45]3 years ago
7 0
I pretty sure its called a <span>called an [b] identity [/b]. i remember learning this and i am almost certain that this is what it's called

</span>
Roman55 [17]3 years ago
5 0
Identity, <span>For example, x + x = 2x is </span>true for every value<span> of x.</span>
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A ladder 25 feet long is leaning against a wall the bottom of the latter is 4 feet from the base of the wall how far up is the i
ICE Princess25 [194]

Answer:

The answer to your question is 24.7 ft

Step-by-step explanation:

Data

length of the ladder = 25 ft

distance from the ladder to the ladder = 4 ft

distance from the floor to the ladder = ?

Process

1.- Use the Pythagorean theorem to solve this problem

           c² = a² + b²

- solve for b

            b² = c² - a²

-Substitution

            b² = (25)² - (4)²

-Simplification

            b² = 625 - 16

            b² = 609

-Result

            b = 24.67 ft ≈ 24.7 ft

-Conclusion

The ladder is 24.7 ft from the floor.

3 0
3 years ago
Read 2 more answers
The length and width of a rectangle are in a 3:5 ratio. The perimeter of the rectangle is 64. What are the length and width of t
Levart [38]

Hey there! I'm happy to help!

We know that the perimeter is 2L+2W. Le'ts plug in the values 3 and 5 from our ratio and see what our perimeter would be with that.

2(3)+2(5)

6+10

16

How can we get this 16 to 64?

64/16=4

So, we need to multiply this length and width by four to get 64 as our perimeter!

3*4=12

5*4=20

We can plug this into our perimeter equation

2(12)+2(20)

24+40

64

Therefore, our length is 12 and our width is 20.

Have a wonderful day! :D

5 0
3 years ago
Tan (25pi/2) = ___<br><br> A). 1<br> B). 0<br> C). -1<br> D). Undefined
jasenka [17]
A.) 1
Type it in your calc. to find
5 0
3 years ago
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If there are 5 black people and u add 7 more how many would there be?
Sloan [31]

Answer:

12

Step-by-step explanation:

7 0
3 years ago
H (x)=x^2+ 8x+7 , what function family does this equation belong to?
Semenov [28]

Answer:

Algebra

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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