4x^2-5x=-1
4x^2-5x+1=0
4x+2.24x=1
6.24x=1
x= 0.16025641025641025641025641025641
Answer:
25
Step-by-step explanation:
240(3/5) = 144
240(2/5) = 96
144-96 = 48
48 boxes must be added
Answer:
85
Step-by-step explanation:
Order of operations rules (PEMDAS) govern here. Anything inside parentheses must be done first, followed by exponentiation, mult. and div., and add. and subtr. last.
Add 2+5 first: 5 + 2*{(7)*5 + 5}
Perform the work shown inside the brackets { and }: 5 + 2*{40}
Perform the indicated mult.: 5 + 80
Finally, add: 85
Answer:
rhombus
Step-by-step explanation:
A rhombus had EQUAL four sides yet no right angles. Why not trapezoid? Well, a trapezoid doesn't have four equal sides. Square and rectangle aren't the answer because they contain right angles. Hopes this helps!