we know that
if ABC is an isosceles right triangle
then
side AC=side BC
angle A=angle B=45 degrees
cos B=adjacent side angle B/hypotenuse
adjacent side angle B=BC
hypotenuse=AB------> 18 ft
angle B=45 degrees
cos 45°=(√2)/2
so
cos 45°=BC/AB-------> solve for BC
BC=AB*cos 45-------> BC=18*(√2)/2------> BC=9√2 ft
AC=BC--------> AC=9√2 ft
the answer part 1) is
the exact lengths of the two sides, AC and BC is
AC=9√2 ft
BC=9√2 ft
Part b) Find the Area of triangle ABC
Area=b*h/2-------> AC*BC/2-----> (9√2)*(9√2)/2--------> 81 ft²
the answer part b) is
the area of triangle ABC is equal to 81 ft²
Answer: The answer is 1400000000
Step-by-step explanation:
The answer is y = -5x/2 + 5
Following the 30% rule of thumb, Sally should only spend a maximum of $900 on her rent
<h3>Numbers and percentage</h3>
Given Data
- Monthly Salary = $3000
- Percentage spent on rent = 30%
Let us find 30% of $3000
= 30/100* $3000
= 0.3*$3000
= $900
Learn more about percentages here:
brainly.com/question/24304697
SPJ1
It's easy just use y=mx+b form ok?
