sub
<span>
</span>
since -x^2+x+19=y
<span>
</span>
x=-x^2+x+19+80
<span>
</span>
x=-x^2+x+99
<span>
</span>
0=-x^2+99
<span>
</span>
x^2=99
x=3√11
x=y+80
3√11=y+80
minus 80 both sides
-80+3√11=y
x=3√11
y=-80+3√11
solution
(x,y)
(3√11,-80+3√11)
Answer:
x = 8
Step-by-step explanation:
5(x-2)=30
Distribute
5x- 10 = 30
Add 10 to each side
5x-10+10 = 30+10
5x= 40
Divide by 5
5x/5=40/5
x = 8
Answer:
2080
Step-by-step explanation:
<u>Step 1: Multiply</u>
65 × 32
60*30 + 60*2 + 5*30 + 5*2
1800 + 120 + 150 + 10
2080
Answer: 2080
Using the simple interest formula, [ i=prt ],
y=360*0.03*x
Answer: 4a
<u>Step-by-step explanation:</u>
12a²b⁶ 28a⁴ 42ab³
∧ ∧ ∧ ∧ ∧ ∧
2 6 a² b⁶ 7 4 aaaa 7 6 a b³
∧ ∧ ∧ ∧ ∧
2 3 aa bbbbbb 2 2 2 3 bbb
12a²b⁶: 2 * 2 * 3 * aa * bbbbbb
28a⁴: 2 * 2 * 7 * aaaa
42ab³: 2 * 2 * 3 * 7 * a * bbb
What do they have in common? two 2s and one a
GCF = 2 * 2 * a = 4a
