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Sloan [31]
3 years ago
12

Which of the following equations is quadratic?

Mathematics
1 answer:
ratelena [41]3 years ago
4 0
Its (x+3)(x+4)=5 , the third one
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What Is the length of BD?<br>​
nadezda [96]
I believe it would be 8 sense the other half is 4
8 0
2 years ago
How many solutions will this system of equations have?<br><br> y = 3.5x − 3.5<br> y = −3.5x + 3.5
xeze [42]

Answer:

There is 1 solution (1,0)

Step-by-step explanation:

y = 3.5x − 3.5

y = −3.5x + 3.5

Add this system of equations together

y = 3.5x − 3.5

y = −3.5x + 3.5

-----------------------

2y = 0

y = 0

Substitute back in

0 = 3.5x - 3.5

Add 3.5 to each side

3.5 = 3.5x

Divide by 3.5

3.5/3.5 = 3.5x/3.5

1=x

There is 1 solution (1,0)

8 0
3 years ago
The sum of twenty-one and five times a number f is 61
Lerok [7]
21+(5f)=61 

Subtract 21 to both sides of the equation
5f=40

Divide both sides by 5
f=8

The answer is 8
6 0
3 years ago
Read 2 more answers
Hector took out a small loan of $900 for 18 months (remember to turn this into
Evgesh-ka [11]

Answer:

$141.75

Step-by-step explanation:

(900)(-105) (13/12) or 1.5

4 0
3 years ago
PLEASE HELP ME ASAP ❤️
kramer

its 2 squared • 3 that is 12 every other one is over 60 which isnt a common factor besides for 3 squared but 9 is less then 12

7 0
3 years ago
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