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Nuetrik [128]
3 years ago
12

How many real solutions does the quadratic equation

Mathematics
1 answer:
mixer [17]3 years ago
3 0

Answer:

Option 1: 2

Step-by-step explanation:

see the plotting (made with desmos)

note that 3 is impossible, because a quadratic equation can't have 3 real zeros

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What is the domain and range of the relation shown in the table?
mote1985 [20]

Answer:

Option (4)

Step-by-step explanation:

Domain of a relation or function is the set of input values (x-values) and Range is the set of output values (y-values).

Therefore, from the given table in the attachment,

Domain → {10, 15, 19, 32}

Range → {-1, 5, 9}

Option (4) will be the correct option.

3 0
3 years ago
If you get this correct I will give you brainlest 5 stars and thanked please help on it
sweet-ann [11.9K]

Answer:

6:7 is 24:x

6:7is18:y

24/6=4. 4*7=28!

Therefore 24 : 28

18/6=3. 3*7=21.

Therefore 18:21

Please brainlest and thanks and 5 star rating! Your welcome and I am so happy to help you!

Step-by-step explanation:

5 0
3 years ago
4/5k = 12 what is the answer because I am a not smart 6th grader
shusha [124]

Answer:

k = 15

Step-by-step explanation: pls thank me and mark me brainliest :3

4 0
3 years ago
7(2+5v)=3v+14 can anyone help???
arsen [322]
7(2+5v)=3v+14
14+35v=3v+14
-3v -3v
14+32v=14
-14 -14
32v=0
÷32 ÷32
v=0

hope this helps!!
5 0
3 years ago
Read 2 more answers
What is:<br> <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B4x%5E%7B2%7D%20-20x%2B25%20" id="TexFormula1" title=" \sqrt{4x^{2} -
Firdavs [7]

We are given :

\sqrt{4x^{2}-20x+25}

Step 1: factor the part inside square root

The function given inside square root is of quadratic form.

So let us try to factorise it using AC method.

Here A*C = 4*25 = 100

so we have to find factors of 100 that add up to give -20.

the two factors are -10 and -10.

Rewriting the function :

4x^{2} -20x+25

=4x^{2} -10x-10x+25

=2x(2x-5) - 5(2x-5)

=(2x-5)^{2}

Step 2:

Now we take square root of the factorised form

\sqrt{(2x-5)^2}

= 2x-5

Answer : (2x-5)

3 0
3 years ago
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