Answer:
<em><u>D</u></em><em><u>,</u></em><em><u> </u></em><em><u>122°F</u></em>
Step-by-step explanation:
°F = 9/5°C + 32
°F = 9/5(50) +32
°F = 90 + 32
°F = 122
4 = -0.8n
To find n divide both sides by -0.8:
n = 4 / -0.8
n = -5
x= -5 or -1
subst y = -x + 5 into y = x^2 + 5x + 10
-x +5 = x^2 + 5x +10
x^2 +6x +5 = 0
(x+5)(x+1)=0
13/9
Step-by-step explanation
d=2-5/9
d=13/9