Answer: 22 cm.
Step-by-step explanation:
Formula for area of trapezium: 
Given: Area = 
Length of parallel sides : 23 cm and 27 cm
Let h=distance beteen them.
then
Hence, the distance between them = 22 cm.
Answer:
Angle CFD = 30°
Step-by-step explanation:
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Answer:
the cost of brand x dog food is $2
Step-by-step explanation:
Let brand X dog food be represented as A
Let Brand Y dog food be represented as B
3 bags of Brand X dog food and 4 bags of Brand Y dog food costs $18,
3A+4B=18
4 bags of Brand X dog food and 3 bags of Brand Y dog food costs
$17.
4A+3B= 17
Using Elimination method
Multiply
- 3A+4B=18 by coefficient of B in equ ii (3) = 9A+12B=54
- 4A+3B= 17 by coefficient of B in equ i (4) = 16A+12B=68
- subtract equation i from equation ii, since sign is the same in both equations
- 9A+12B-(16A+12B)= 54-68
- open bracket
- 9A+12B-16A-12B= 54-68= -14
- 9A-16A+12B-12B= -14
- -7A= -14
- divide both sides by -7
A = -14/-7= 2
Since the brand X dog food is represented as A
the cost of brand x dog food is $2
Answer:
20m/s
Step-by-step explanation:
This can be solved using the acceleration / velocity equations.
Specifically,
v² = u² + 2as
Where
v = final velocity = what we need to find
u = initial velocity = given as 10.0m/s
a = acceleration = given as 0.5m/s²
s = distance = 300m
Hence,
v² = 10² + (2)(0.5) (300)
= 100 + 300
=400
v = √400 = 20 m/s
Answer:
its the second from the top
