Linear Equations
2x=16
x=8
B(t)=2500⋅20.01t when t=25years
In 25 years, the population of black bears at the park will be about 2973 bears.
4x≤12
x≤3
f(x)=5x−3 when x=-5
f(5)=22
3x+2y=5
(0,5/2)
3x+4=19
x=5
T(m)=21+74⋅10−0.03m when m=10minutes
−8x≥−5
x≤40
k(x)=6x+100 when x=-5
k(−5)=70
−5x−4y=10
(0,−2.5)
3x+2=5x-4
x=3
Lana sent a chain email to 10 of his friends. The number of people who got the email increases by a factor of 1.4 every week.
What expression gives the number of people who got the email after 3 weeks?
10⋅1.43
x+5≤−4
x≤−9
h(x)=17+6x when x=-18
h(−18)=14
y+1=3(x−4)
(0,−13)
3(x+2)+4x=20
x=2
9900(1+0.023)7
11608.1933
17x>−17
x>−1
k(x)=6x+100
k(−5)=70
2x+5y=−6
(0,−1.2)
2(5−d)=2−4d
d=-4
Benjamin invests $400 in a savings account that earns 5% interest each year.
What expression does not give the correct balance in the account after 333 years?
400(1−0.05)3
8x+2>34
x>4
h(t)=50−5/t when t=35
h(35)=43
y=8x−18
(0,−18)