Answer:
Using substitution method
First make y in equation 1 the subject of formula
Y=4x-2
Sub in equation 2
2(4x-2)-8x=4
8x-4-8=4
8x=4+12
8x=16
X=2
Sub in any of equation to get y
Step-by-step explanation:
Y =4(2)-2=6
Let's group the cubic function:
.
The first two roots are
however to find the last two roots we need to solve the square equation:
. Now we know the discriminator, using the discriminator we're able to find the roots of the equation:
. The roots of the square equation are
and
.
The roots of the cubic function are
,
and
.
Answer:
Step-by-step explanation:
Let the line to be found be Line 2
Given:
Line 1 :
y = 4x + 6
Since y = mx + b
We can substitute and find that the slope of Line 1 is 4
Therefore slope of Line 2 = (4)
Line 2:
Point - (1,6)
Slope - 4
Therefore: 6 = (4)(1) + b
So equating it we get : b = 2
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Answer:
6 cm² + 6 cm²
12 cm²
surface area of the cuboid=12cm²-2 cm²
=10 cm²
Given:
Fuel tank : 16.5 gallons of fuel
1 gallon = 24.3 miles
250 miles traveled
250 miles / 24.3 miles = 10.29
10.29 * 1 gallon = 10.29 gallons
16.5 gallons - 10.29 gallons = 6.21 gallons of fuel remaining.
16.5 gallons * 24.3 miles = 400.95 miles
400.95 miles - 250 miles = 150.95 miles
150.95 miles / 24.3 miles = 6.21 gallons of fuel remaining
