Answer:
x + 7
Step-by-step explanation:
x^2 + 4x − 21 =
= (x + 7)(x - 3)
x^2 + 11x + 28 =
= (x + 4)(x + 7)
Answer: x + 7
D/t=r
d/r=t
tr=d
we will use
d/t=r
d=480
t=3
480/3=r=160
rate is 160 miles per hour
Answer: 55,425.2 cm3
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Volume of a hemisphere = 2/3 π radius^3
Replacing with values given and solving for V (volume)
V = 2/3 π (29.8) ^3 = 55,425.2 cm3
In conclusion, the volume of the hemisphere is 55,425.2 cubic centimeters.
Feel free to ask for more if needed or if you did not understand something.
Answer:
y = 3x-6
Step-by-step explanation:
y = 3x−5
This is in slope intercept form
y = mx+b where m is the slope and b is the y intercept
m =3
Parallel lines have the same slope
We have the slope m=3 and a point (2,0)
y = mx+b
y = 3x+b
Substituting the point into the equation to solve for b
0 = 3(2)+b
0 = 6+b
b = -6
y = 3x-6