Answer: x=8
Step-by-step explanation:
Since we are given that ∠ABC and ∠DBC are complementary angles, we know that adding them together should give us 90°. We can use this to solve for x.
6x+13+4x-3=90 [combine like terms]
10x+10=90 [subtract both sides by 10]
10x=80 [divide both sides by 10]
x=8
Now, we know that x=8.
The area of a triangle is 1/2(h*b). We know the height is 7.794 and the base is 9 so just plug and chug!
1/2(7.794*9)= 35.073
Answer:
162
Step-by-step explanation:
13 and a half in decimal form is 13.5
you multipy 13.5 and 12 which gives you 162
(don't let the decimal confuse you just take it out and multipy like so then add it back again)
Hope this helps ;)
Answer:
the is c because the answer