Answer: 3
Step-by-step explanation: m=2 so 7.5x2 = 15
15/5 is 15 divided by 5 so the answer is 3
Answer:
The perimeter is 14 units.
Step-by-step explanation:
5 + 5 + 2 + 2 = 14
Set an equation.
252/300=x/100
Cross multiply
25200=300x
Divide by 300
x=84
So the percent of white paint left is 84. To find the decrease, subtract 84 from 100.
Answer: The percent decrease of white paint from the beginning of the month to the end is 16.
X² + 20x + 100 = 36⇒ x² + 20x + 100 - 36 = 0⇒ x² + 20x + 64 =0
Δ = b²-4ac = 20² -4·1·64 = 400-256 = 144
x₁= (-b+√Δ)/2a = (-20+√144)/2·1 = (-20+12)/2 = -8/2 = -4
x₂= (<span>-b-√Δ)/2a = (-20-√144)/2·1 = (-20-12)/2 = -32/2 = -16
x=-4 or x=-16</span>
Answer:
- 1050
Step-by-step explanation:
The sum to n terms of an arithmetic sequence is
= 
[ 2a₁ + (n - 1)d ], thus
= 
[ (2 × - 74) + (19 × - 3) ]
= 10 ( - 148 - 57) = 10 × - 105 = - 1050
