Answer:
a)b=4
b)x=-9
c)r=6
Step-by-step explanation:
Question 2.
a)5b+6=26
5b=26-6
5b=20
b=4
b)6-x=15
-x=15-6
-x=9
x=-9
c)r/2+2=5
r/2=5-2
r/2=3
Multiply both sides by 2 to remain with r
r/2×2=3×2
r=6.
Answer:
30
Step-by-step explanation:
Take the total 76 marbles and divide by 2. Both the girls have an equal amount of 38. Since Becky has 8 more than Kim, do 38-8=30.
Nindyseven tenth andthreehundredfiftysIx thousandths
Step-by-step explanation:
First diagram.......
Sin∅ = opp/hyp
using angle 30°.......
sin30° = E/10√3
From trigonometry ratio
sin30° = ½
½ = E/10√3
2E = 10√3
E = (10√3)/2
E = 5√3
still using angle 30°..........
cos∅ = adj/hyp
cos30° = F/10√3
From trigonometry ratio
cos30° = √3/2
√3/2 = F/10√3
2F = 10√3(√3)
2F = 10(√3)²
2F = 10×3
2F = 30
F = 30/2
F = 15
Second diagram
Using 30°.........
Sin30° = 8/H
½ = 8/H
H = 2 × 8
H = 16
Cos30° = G/H
√3/2 = G/16
2G = 16√3
G = (16√3)/2
G = 8√3
Answer:
The triangles are lined up with their correct pairs already.
Step-by-step explanation:
The leg that is the base is always seen as the bottom, and the leg to the side of it that makes the right angle will always be the height. Though if the base is at the hypotenuse as it is seen in the last photo, the height will be from the point of which the two legs of the triangle meet down to the hypotenuse.
