Answer:
Ans. 64 cm
Step-by-step explanation:
we have to use the ratio of actual distance and distance on projection here.
Given,
Ratio of distance in projection and actual distance is 1:200,000
That means, 1 cm in projection will be 200,000 cm in actual distance.
Here,
Actual distance is 128 km.
we know, 1 km=100,000 cm
Now, 128 km=128,00,000 cm
So, actual distance is 128 00 000 cm.
Since, 200000 cm in actual distance means 1 cm in projection.
So,
for 12800000 cm in actual distance means 12800000/200000 cm in projection.
So, in the screen distance will be-
12800000 / 200000
=64 cm
Answer:
(4x-3)(x+1)
Step-by-step explanation:
Answer:
x = 3, y = 1 is the solution of the given system.
Step-by-step explanation:
Here, the given system of equations is:
y = -x + 4 ...... (1)
y = x - 2 .......... (2)
Now, to find the solution of the system, SUBSTITUTE the value of y from equation (1) in to the equation (2). We get ,
y = x - 2 ⇒ -x + 4 = x - 2 ( as from (1), y = -x + 4)
or, -x -x = -2 -4
or, - 2 x = -6 ⇒ x = 6/2 = 3
or, x = 3
⇒ y = x - 2 = 3 - 2 = 1
⇒ y = 1
Hence, x = 3, y = 1 is the solution of the given system.
B is the answer when the parabola is facing down it is negative
ANSWER
See attachment
EXPLANATION
The given inequality is
This implies that,
Multiply both sides of the second inequality by -1 and reverse the inequality sign.
The graphical solution to this inequality is shown in the attachment.
