4 x^2 + 20 x + 25 = 7
Divide both sides by 4:
x^2 + 5 x + 25/4 = 7/4
Write the left-hand side as a square:
(x + 5/2)^2 = 7/4
Take the square root of both sides:
x + 5/2 = sqrt(7)/2 or x + 5/2 = -sqrt(7)/2
Subtract 5/2 from both sides:
x = sqrt(7)/2 - 5/2 or x + 5/2 = -sqrt(7)/2
Subtract 5/2 from both sides:
Answer: x = sqrt(7)/2 - 5/2 or x = -5/2 - sqrt(7)/2
Answer:
1/4
Step-by-step explanation:
Answer:
Step-by-step explanation:
The Volume of a rectangular prism is expressed as;
V = Base area * height of prism
Given
Volume of prism V = 7,280 cubic inches.
height of prism = 26in
Required
Base Area
Substitute the given parameter into the formula;
7280 = 26B
B = 7280/26
B = 280in²
Hence the area of the newspaper on the bottom of the cage is 280in²
329 sweets
16 full bags
Explanation:
7bags x 47sweets per bag = 329sweets
329sweets / 20sweets = 16 FULL bags
Number of angles = number of sides
180 - 120 = 60 (calculating the exterior angle)
360 / 60 = 6
There are 6 sides.
Hope this helps! :)