Answer:
12. 5
11.
10
10
15. 7
14. 11
2
=
16
16
18. 3
+
11
17
3
4
co
loo
8
Step-by-step explanation:
12. 5
11.
10
10
15. 7
14. 11
Answer:
5 secs
Step-by-step explanation:
The height of the object is given as:

The moment when the object hits the ground, the height of the object will be 0 m.
Hence:

Solving this for t:
Divide through by 16 and move all parameters to the left hand side:


Since time cannot be negative, time, t = 5 secs.
The object will hit the ground after 5 secs.
Answer:
75°
Step-by-step explanation:
∠DGF = 2* ∠DEF
10x + 50 = 2(9x - 15)
10x + 50 = 18x - 30
50 = 18x - 30 - 10x
50 = 8x - 30
8x - 30 = 50
8x = 50+30
8x = 80
x = 80/8
x = 10
∠DEF = 9x - 15
= 9*10 -15
= 90 - 15
= 75°
Find all the number in the set that are less than -7.
The 'bigger' the negative number seems, the smaller it is.
So -15, -10.5, and -7.2 are all less than -7.
I can't answer cause u didn't show the angles