Answer:
a
Step-by-step explanation:
Answer:
A) y=1/5x
Step-by-step explanation:
Coz, the way you identify a perpendicular line is by looking for its negative reciprocal. The neagtive reciprocal of 5= 1/5
Now, to check the ans we can multiply the negative reciprocal by "m"
(m in y=mx+c or y=mx+b)
in this case the "m" is stated as 5, so all we need to do is 1/5*5 if the ans is 1 then your ans is right....and over here it is
So thats how you identify & check perpendicular lines!
Answer:
6
Step-by-step explanation:
volume of prism = area of cross section * height
area of cross section =162/6√3 =27/√3
since the base angles are each 60 degrees, the triangle is an equilateral triangle. for equilateral triangles, area =(√3 * side^2)/4
hence,
27/√3 = (√3 * side^2)/4
side^2 = (27/√3) / (√3/4) = 108/3 = 36
side = ±√36 = 6 or -6 (rej as side >0)
Answer:
18x^{3}+30x^{2}+42x+20
Step-by-step explanation:
Use the distributive property to multiply 3x^{2}+3x+5 by 6x+4 and combine like terms.
The total cost of the meal is $37.80
Given:
Food bill = $30
tip = 20%
sales tax = 6%
Tip and sales tax must be based on the food bill.
Tip = $30 x 20% = $6
Sales Tax = $30 x 6% = $1.80
Food bill : 30.00
Tip 6.00
Sales tax <u> 1.80</u>
Total cost 37.80