Step-by-step explanation:
Your maths problem
<
1
5
?
.
8
0
.
7
0
.
1
0
0
.
1
1
0
I did get the one in the tux ♂️ and the other one ☝️
Answer:
b ≤ -4
Step-by-step explanation:
4b−4≤−20
4b - 4 + 4 ≤ - 20 + 4
4b ≤ -16
Divide both sides by 4
b ≤ -4
In triangle, ABD,
AD²= AB²+BD²
AB² = AD²-BD²
AB² = 18²-9² = 324-81 = 243
AB = √243
In triangle, ABC,
AC² = AB²+BC²
AC² = (√243)²+(13)²
AC² = 243+169
AC = √412
AC = 20.29
The answer should be b 9/10
