Answer:9(4x-6) is not equivalent to 36x-48.
Step-by-step explanation:
9 x 4x= 36x
9 x -6 = -54
Answer:
If you would like to know what is the length of the painting, you can calculate this using the following steps:
an area = width * length
320 = 16 * length
length = 320 / 16
length = 20 inches
The correct result would be 20 inches.
Step-by-step explanation:
Answer:
Step-by-step explanation:
3/4h-12=8 5/8
+12 +12
3/4h= 20 5/8
Divide by 3/4 on both sides
h= 27 1/2
Answer: x = 4
y = - 3
Step-by-step explanation:
The given system of simultaneous equations is expressed as
x-3y = 13 ------------------------1
2x+4y=-4--------------------------2
We would apply the method of substitution in solving the equations. From equation 1, we would make x to stand alone by adding 3y to the left hand side and the right hand side of the equation. It becomes
x - 3y + 3y = 13 + 3y
x = 13 + 3y
Substituting x = 13 + 3y into equation 2, it becomes
2(13 + 3y) + 4y = - 4
26 + 6y + 4y = - 4
26 + 10y = - 4
Subtracting 26 from the left hand side and the right hand side of the equation, it becomes
26 - 26 + 10y = - 4 - 26
10y = - 30
Dividing the left hand side and the right hand side of the equation by 10, it becomes
10y/10 = - 30/10
y = - 3
Substituting y = - 3 into x = 13 + 3y, it becomes
x = 13 + 3 × - 3
x = 13 - 9
x = 4
Answer:
The correct answer is 47 degrees.
Step-by-step explanation:
Use cosine.
cos(x)= adj/hyp
cos(x)=19/28
x=arccos(19/28)
Use a calculator
x is approximately 47 degrees.