Answer:
Step-by-step explanation:
( g ° f )(x) = ( x + 7 )² = x² + 14x + 49
20 + 3(x² + 14x + 49) = - 34
20 + 3x² + 42x + 147 = - 34
3x² + 42x + 201 = 0 ⇔ x² + 14x + 67 = 0
D = 196 - 268 = - 72 < 0
There is no any roots in set of real numbers.
The values of x in set of complex numbers are:
= 
± 
= - 7 ± 3√2 i
Answer:
Slope = 0
Step-by-step explanation:
Slope = 0/-5 = 0
Answer:
Well, the tank's volume is 1.2 x 1.2 x 1.35 = 1.944 m³ = 1944 litres.
It is half-full, so it contains 1944 / 2 = 972 litres of water.
That is enough to fill 972 / 9 = 108 9-litre buckets.
Step-by-step explanation: h = height of water = 1.35 m/2 = 0.675 m
A = area of tank = s² = (1.2 m) = 1.44 m²
V = volume of water
V = Ah = (1.44 m²)(0.675 m)
Let me change this equation up a bit...
x - 4y = -16....same as ur equation in the problem...just a different form
now its just a matter of subbing
when y = 5
x - 4(5) = -16
x - 20 = -16
x = -16 + 20
x = 4
so the first space on ur table above the 5 is 4
no need to go further...answer B
Answer:
27.5
Step-by-step explanation:
Radius is half the diameter of a circle so just divide 55 by 2.
