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torisob [31]
3 years ago
14

Which sides are congruent? What is the correct answers choice(s)

Mathematics
2 answers:
Verdich [7]3 years ago
7 0

I think the answer is B and C

elena-s [515]3 years ago
5 0

Answer: fr and nr, rc and ro, no and nm

Step-by-step explanation: you just have to look at each of the lines and see if they are equal or not i hope this helps :))

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Use the equation x-2=√(2x+20) to answer these questions.
mario62 [17]

Answer:

An extraneous solution is a root of a transformed equation that is not a root of the original equation because it was excluded from the domain of the original equation. Example 1: Solve for x , 1x − 2+1x + 2=4(x − 2)(x + 2) .Set the equation to equal zero. (this ends up being √x+4−x+2=0 )

Plug this into the y= button on your TI-83/84 calculator.

Find the value of each of your solutions (go to 2nd->Calc->Value and enter your solution for x )

You should get zero as an answer for each of them.

Step-by-step explanation:

Extraneous solutions are not solutions at all. They arise from outside the problem, from the method of solution. They are extraneous because they are not solutions of the original problem. ... To tell if a "solution" is extraneous you need to go back to the original problem and check to see if it is actually a solution.

3 0
3 years ago
So if i have a 100.5% in a class and i don’t do a 10% project, what does that leave my grade at ?
ch4aika [34]

Answer:

90.45

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the value of c that makes the expression a perfect square trinomial.<br><br> x2 + 4x + c
masha68 [24]

the value of c that makes the expression a perfect square binomial is c=4 .

<u>Step-by-step explanation:</u>

Here we have , an expression x2 + 4x + c or , x^2 + 4x + c . We need to find  the value of c that makes the expression a perfect square binomial. Let's find out:

We have ,  x^2 + 4x + c

⇒ x^2+4x+c

⇒ x^2+2(2)x+c

Now , we know that (a+b)^2=a^2+2(a)(b)+b^2

Comparing above equation  , to  x^2+2(2)x+c we get ;

⇒  x^2+2(2)x+c            { c=2^2  }

⇒  x^2+2(2)x+2^2

⇒  (x+2)^2

Therefore , the value of c that makes the expression a perfect square binomial is c=4 .

7 0
3 years ago
1.
Phoenix [80]

Answer:

C.    Graph c

Step-by-step explanation:

I got it correct

6 0
3 years ago
The number of cans in the layers of a display in a supermarket form an arithmetic sequence. The bottom layer has 28 cans; the ne
Aleksandr-060686 [28]

Answer: 145 cans

Step-by-step explanation:

arithmetic sequence

aₙ = a₁ + (n-1).r

aₙ → last term

a₁ → 1st term

n → quantity of terms

r → common difference

a₁ = 1 (one can at the top)

aₙ₋₁ = 25

aₙ = 28

To find out How many cans are in the entire display, we need the SUM of the arithmetic sequence: S = (a₁+aₙ)n/2

∴

S = (1+28).n/2

n = ?

aₙ = a₁ + (n - 1).r

r = 28 - 25 = 3

28 = 1 + (n - 1).3

27 = (n - 1).3

27/3 = (n - 1)

9 = n - 1

n = 9 + 1 = 10

S = (1+28).n/2

S = (1+28).10/2 = 29.10/2 = 29.5 = 145

7 0
4 years ago
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