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NeTakaya
3 years ago
8

Prove why 2,5,8,11 and 14 are not perfect squares?​

Mathematics
2 answers:
Svetach [21]3 years ago
8 0

Answer:

✓2=1.41421

✓5=2.23607

✓8=2.82842

✓11=3.31662

✓14=3.74166

Step-by-step explanation:

Therefore the numbers are increasing by three so they cant be perfect square

Murljashka [212]3 years ago
3 0

Answer:

because there is an exact square number such as:4,9

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Hey can you please help me posted picture of question
Debora [2.8K]
We can use quadratic formula to determine the roots of the given quadratic equation.

The quadratic formula is:

x= \frac{-b+- \sqrt{ b^{2} -4ac} }{2a}

b = coefficient of x term = -11
a = coefficient of squared term = 2
c = constant term = 15

Using the values, we get:
x= \frac{11+- \sqrt{121-4(2)(15)} }{2(2)} \\  \\ 
x= \frac{11+-1}{4} \\  \\ 
x=3, x= 2.5

So, the correct answer to this question are option B and D
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Answer:

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6 0
3 years ago
How do i solve 5y - 10 = -25?
viva [34]
So to find the answer you want to isolate the y. So the first thing you want to do is to move everything to the opposite side of the = sign. You start by adding 10 to both sides.
10+ 5y -10 = -25 +10  
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the tens cancel out on the left side and on the right you get left with -15/
Since y is being multiplied by 5 you always want to do the opposite so you divide by 5.
5y/5 = -15/5
y = -3
It's hard to explain but you just have to remember that what you do to one side you must do to the other to keep the equation balanced.

8 0
3 years ago
Read 2 more answers
Clara ran 10 miles, which was twice as far as Nina ran. How far did Nina run?
Anarel [89]
Nina would have ran 5 miles because if clara ran 10 and thats twice as far as nina 10 divided by 2 is 5
4 0
2 years ago
What is 65 ÷ 455? because I need help.
eduard
65÷455= 7
Hope this helps!
8 0
2 years ago
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