Answer:
<h3>77</h3>
Step-by-step explanation:
If Point D is in the interior of <ABC, then <ABD+<BDC = <ABC
Given
<ABC = 10x - 7,
<ABD = 6x + 5
<DBC = 36
Substituting the given parameters into the formula above;
ABD+<DBC = <ABC
6x + 5+ 36 = 10x-7
6x+41 = 10x-7
collect like terms
6x-10x = -7-41
-4x = -48
divide both sides by -4
-4x/-4 = -48/-4
x = 12
To get <ABD, we will substitute x = 12 into the expression <ABD = 6x + 5
<ABD = 6(12)+5
<ABD = 72+5
<ABD =77
Hence the value of <ABD is 77
Answer:
8
Step-by-step explanation:
The absolute value of |x| is x
-x = -8
Distribute the - on the other side but since two negatives make a positive:
- and - = +
x = 8
Hope this helped.
Answer:
Step-by-step explanation:
l= 20 in ; b = 40 in; h = 50 in
Surface Area = 2*(lb+bh+hl)
= 2*(20*40 + 40*50 + 50*20)
=2*(800 + 2000 + 1000)
=2*3800
= 7600 square inches