1.8 ÷ 3= X
×1.8 ×1.8=5.4
x=5.4
tell me if it helps.
Answer:
126
Step-by-step explanation:
Let the total number of postcard with stamp on it =x
Out of 350 postcards, x has stamp on it.
Out of 75 postcards, 27 has stamp on it.
Expressing these as a ratio:
350:x=75:27
350/x=75/27
Cross multiply
75x=350*27
x=(350*27)/75
x= 126
Therefore, the the total number of postcards in the box with stamps on them is 126.
Answer:
The equation that matches the function shown is option;
C. 
Step-by-step explanation:
The given graph of the function is a sinusoidal graph
The values of 'x' and 'y' coordinates at the maximum, x-intercept and minimum points are given as follows;
x,
y
0
0
π
1
2·π
0
3·π
-1
4·π
0
We note that sin(π/2) = 1, sin(π) = 0 sin(3·π/2) = -1, and sin(4·π/2) = sin(2·π) = 0
Therefore;
y = the sine of half the x-value
Which is presented as follows;
.