Answer:
7.5 cm²
Step-by-step explanation:
Dimensions of the large ∆:


Dimensions of the small ∆:


Difference between the area of the large and the small ∆ = 13.5 - 6 = 7.5 cm²
Answer: y= - 4x+18
Step-by-step explanation:
Equation: y=mx+b
***remember: b is the y-intercept and m is the slope.
m=
3= x1
2= x2
6= y1
10=y2
m=
=
= -4
m=-4
Now we have y=-4x+b , so let's find b.
You can use either (x,y) such as (3,6) or (2,10) point you want..the answer will be the same:
(3,6). y=mx+b or 6=-4 × 3+b, or solving for b: b=6-(-4)(3). b=18.
(2,10). y=mx+b or 10=-4 × 2+b, or solving for b: b=10-(-4)(2). b=18.
Equation of the line: y=-4x+18
23 good luck hopefully you pass the test
1280. 100% of students
X. 60% of student voting for Joan
X=1280•60/100
X=768
Answer:
a = 2x - b
Step-by-step explanation:

Use the reciprocal of 1/2 to get rid of the fraction by multiplying both sides of the equation by 2/1:

2x = a + b
finally, subtract <em>b </em>from both sides of the equation to isolate <em>a</em>:
2x - b = a + b - b
2x - b = a