Answer:
exchange of gases
Step-by-step explanation:
I think answer is A
Because slope=rise/run
Rise is 3
Run is 2
But it will be negative because of the direction of slope
Answer:
(i) Triangle ABC and triangle ADE are similar triangles. Hence, their ratios will be same.
Ratio of DE to BC is 4:6 => 2:3
To find area, we need to raise the ratio of length to power 2
(2/3)² = 16/x
4/9 = 16/x
x = (16*9)/4
x = 36cm²
Therefore, area of triangle ABC is 36cm²
(ii) Ratio of DE to BC is 4:8 => 1:2
(1/2)² = 25/x
1/4 = 25/x
x = 25*4
x = 100cm²
Therefore, area of triangle ABC is 100cm²
I'm not sure about the third question, sorry
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
There are 2 y values for 6 and 12. A function only has one for each x value.
Hope I helped!!!!
Answer:
Step-by-step explanation:
The formula for determining the length of an arc is expressed as
Length of arc = θ/360 × 2πr
Where
θ represents the central angle.
r represents the radius of the circle.
π is a constant whose value is 3.14
From the information given,
Radius, r = 7 inches
θ = pi/4
2π = 360 degrees
180 degrees = π radians
1 radian = 180/π
2.1 radians = 2.1 × 180/π = 120.38 degrees
Therefore,
Length of arc = 120.38/360 × 2 × 3.14 × 7
Length of arc = 14.7 inches rounded up to 1 decimal places
