Answer: x=10.0 or just 10
Step-by-step explanation: 4.4=x-5.6
+5.6 +5.6
-----------------------
10.0=x
Answer:
2 (A)
Step-by-step explanation:
a) Radicand is 1/4
b) x= 4.5 or -2.5
<h3>What is quadratic equation?</h3>
A quadratic equation is a second-order polynomial equation in a single variable x ax²+bx+c=0. with a ≠ 0 .
Given equation is:
16x²-8x+1=0
Now,
(4x)²-2*4x*1 + (1)²=0
Using
(a+b)²= a² + 2ab + b²
So,
(4x)²-2*4x*1 + (1)² = (4x+1)²
x=1/4
b) 4x² - 8x - 45 = 0
Using discriminant method
D = √[(-8)² - 4(4)(-45)]
= √784
= 28
Now, x = (1/8)[8 +/- 28]
= (1/8)(36) = 4.5
or, x = (1/8)(-20)
= -2.5
Learn more about this concept here:
brainly.com/question/4480807
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Answer:
Step-by-step explanation:
Donot give these stuff. Write it on a piece of paper thwn only send it. Im one of the brainlie's Assistant like i help people and teach them to do this or do that.
The diagonal of a square is given by:
d = root ((L) ^ 2 + (L) ^ 2)
Where,
L = side of the square.
So we have to clear L:
d ^ 2 = (L) ^ 2 + (L) ^ 2
d ^ 2 = 2 (L) ^ 2
(L) ^ 2 = (d ^ 2) / 2
L = root ((d ^ 2) / 2)
Substituting
L = root (((8) ^ 2) / 2) = 5.66 mm
Then, the perimeter of the square is given by:
P = 4L = 4 * (5.66) = 22.64mm
answer
The perimeter of the square is 22.64mm or
<span> 22.8 mm
</span>
