Answer:
4 + 10x^2
Step-by-step explanation:
–2 (–2 – 5x^2)
Distribute
-2 *-2 -2*-5x^2
4 + 10x^2
Answer:
1
Step-by-step explanation:
first, solve in the parentheses then solve from there:
1 + 4 = 5
50 - 5^2 / 25
50 - (5 x 5 ) /25
50 - 25 / 25
25 / 25
1
1) 3•5(64-65)
2) 3•5(-1)
3) 3•(-5)
4) -15
Answer:
1.932 days (or approximatelly 1 day, 22 hours and 22 minutes)
Step-by-step explanation:
The inicial concentration is 60,000, and this concentration triples every 4 days, so we can write the equation:
P = Po * r^t
where P is the final concentration after t periods of 4 days, Po is the inicial concentration and r is the ratio that the concentration increases (r = 3)
Then, we have that:
102000 = 60000 * 3^t
3^t = 102/60 = 1.7
log(3^t) = log(1.7)
t*log(3) = log(1.7)
t = log(1.7)/log(3) = 0.483
so the number of days that will take is 4*0.483 = 1.932 days (or approximatelly 1 day, 22 hours and 22 minutes)
Answer:
p = -7
Step-by-step explanation:
7(p+3) = -28
now we times the inside of the parenthese by 7
7p+21 =-28
now we minus 21 on both sides
7p= -49
now divide
p = - 7
