Answer:
Zeros are x = 1.5, -2.5
Step-by-step explanation:
Given function is,
F(x) = 4x² + 4x - 15
= 4(x² + x - 3.75) [Since, intercept form of a quadratic equation is the factored form of the function]
F(x) = 4(x² + 2.5x - 1.5x - 3.75)
= 4[x(x + 2.5) - 1.5(x + 2.5)]
= 4(x - 1.5)(x + 2.5)
For 'x' intercepts,
f(x) = 0
4(x - 1.5)(x + 2.5) = 0
x = 1.5, -2.5
Therefore, zeros of the given function are x = 1.5, -2.5.
So first its 20 x 20 which is 400 so then the lawnmower does 80 per min so 80 x 5 and u get 400
Given:
Equations using properties.
To find:
The equation which use the inverse property of multiplication.
Solution:
<u>Inverse property of multiplication:</u>
<em>The product of any number and its reciprocal is always 1.</em>
Let us select the option which uses inverse property of multiplication.
Option A:
Inverse of is . Their product is 1.
This equation uses the inverse property of multiplication.
Option B:
Inverse of is
So, it is not true equation.
Option C:
Inverse of is .
So, it is not true equation.
Option D:
Here also inverse property is not used.
So, it is not true equation.
Hence the equation use the inverse property of multiplication is
.
Answer:
Step-by-step explanation: