5x^2 - 5 = -17
First add 5 to both sides:
5x^2 = -12
Now, divide by 5
x^2 = -12/5
Take the square root of both sides
x = sqrt -12/5
Because there can't be a square root of a negative number, your answer is:
x = sqrt -12/5 * i
Hope this helps!
The formula for calculating the area of a rectangle is expressed as A = lw. The area of the box is 48x^4 - 32x^3 cubic units
<h3>Area of a rectangle</h3>
The formula for calculating the area of a rectangle is expressed as:
A = lw
Given the following parameters
- length l = 8x²
- breadth w = 6x² - 4x
Determine the area
Area = (8x²)6x² - 4x
Area of the box = 48x^4 - 32x^3
Hence the area of the box is 48x^4 - 32x^3 cubic units
Learn more on area of box here: brainly.com/question/3948796
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Answer:
Step-by-step explanation:
multiply first x by second x
multiply first x by -5
Multiply 2 by second x
multiply 2 by -5
(x×x)+(x×-5)+(2×x)+(2×-5)
this is equal to
Standard form is Ax +By =c
y = -4/5 x -7
multiply by 5
5y = -4x -35
add 4x to each side
4x +5y = -35
multiply by -1
-4x -5y = 35
Choice D
Answer:
PQ = 16.04cm
Step-by-step explanation:
θ = 76°
QR = 4cm
PQ = ?
Since it's a right angle triangle,
QR = adjacent
PQ = opposite
Tanθ = opposite/adjacent
Tan76 = pq / 4
PQ = 4tan76
PQ = 4 * 4.010
PQ = 16.04cm
