<span>The identity element when applied does not change the other elements hence in multiplication 1x7=7 and 1x5=5 the elements 5 and 7 do not change for addition its 0 such as 0+10=10.
</span><span>Identity for multiplication is 1, for addition its 0</span>
It should be FN because the upward force would be normal force.
8 x 2 = 16
Square root of 16 = 4
One side of the square is 4 meters.
Answer:
d
Step-by-step explanation:
Factoring using difference of squares
a² - b² = (a - b)(a + b)
a
x² - 1
= x² - 1²
= (x - 1)(x + 1)
b
x² - y²
= (x - y)(x + y)
c
x² - 4
= x² - 2²
= (x - 2)(x + 2)
d
4 - 16y ← 16y is not a perfect square and so cannot be factored
If it was 4 - 16y² then it could be factored using difference of squares
Answer:
x = -1+✓17 or x = -1 -✓17
Step-by-step explanation:
x^2 + 2x + 1 = 17
Make the equation equal to 0 by taking away 17.
x^2 + 2x - 16 = 16
Put a, b and c into the quadratic formula.
a = 1 b = 2 c = -16
