Answer:
the x and y is 6 and -4 respectively
Step-by-step explanation:
The computation of solving the system of equations is given below:
Given that
5x - 7y = 58
And,
y = -x + 2
Put y value in the first equation
5x - 7(-x + 2) = 58
5x + 7x - 14 = 58
12x = 58 + 14
12x = 72
x = 6
So y = -6 + 2
= -4
Hence, the x and y is 6 and -4 respectively
Answer:
-28x(-1.6)
Step-by-step explanation:
combine like terms: -18x +(-10x) ---> <u>-28x</u>
3-4.6 ---> <u>-1.6</u>
Combine the leftover terms:
<u>-28x(-1.6)</u>
Answer:
y=1/2x+4
Step-by-step explanation:
m = y2-y1/x2-x1 = 5-1/2-(-6) = 4/8 = 1/2
since you have the slope, graph the points and find the y-intercept.
y=1/2x+4
Answer:
A = 4 cm²
Step-by-step explanation:
The area of a triangle is calculated as
A =
bh ( b is the base and h the perpendicular height )
b = AC = 3
+
= 4
h = BD
Calculate BD using Pythagoras' identity in Δ ABD
BD² = AB² - AD²
= (2
)² - (3
)²
= 20 - 18 = 2 ( take square root of both sides )
BD = 
Then
A =
× 4
×
= 2 ×
×
= 4 cm²
Answer:
x=(y+b)/m
Step-by-step explanation:
y=mx+b
y+b=mx
(y+b)/m=x