Answer:
About 10 people
Step-by-step explanation:
40% is 0.4. 24 × 0.4 = 9.6 which is approximately 10.
Z would have to be 4. Cause it's reverse squared. So 4^-2 would be 1/16 but its 4^-3 so it's 1/64.
The price of the computer program is 50 dollars.Since, it is on sale, the current price is now 37.50 dollars.Base on the given choices or options, let's find out which is correct.But, first let's solve this to be able to identify which one is the correct answer:=> 37.50 dollars / 50 dollars = 0.75=> 0.75 * 100% = 75%=> 100% - 75% = 25%.<span>Thus, the discount percentage is 25% and the current price is 75%.</span>
20. parallel lines will have the same slope, but different y intercepts
In y = mx + b form, the slope is in the m position and the y intercept is in the b position.
So y = 3x + 4 and y = 3x + 6 are parallel lines
21. perpendicular lines will have negative reciprocal slopes.
lets say u have a line..y = 2/3x + 4....the slope here is 2/3. To find the negative reciprocal, flip the slope and change the sign. So we have 2/3, flip the slope making it 3/2, change the sign making it -3/2. So ur perpendicular line will have a slope of -3/2.
so ur equations can be : y = 2/3x + 4 and y = -3/2x + 4
22. y = 2x + 5...slope here is 2. Parallel lines have the same slope.
y = mx + b
slope(m) = 2
(-3,1)...x = -3 and y = 1
sub and find b, the y int
1 = 2(-3) + b
1 = -6 + b
1 + 6 = b
7 = b
so this equation is : y = 2x + 7
23. 4x + 3y = (I cant see the last number..but we dont need it)
3y = -4x + ?
y = -4/3x + ?.....slope here is -4/3. A perpendicular line will have a negative reciprocal slope. So out perpendicular line will have a slope of 3/4.
y = mx + b
slope(m) = 3/4
(-8,-5)...x = -8 and y = -5
sub and find b, the y int
-5 = 3/4(-8) + b
-5 = - 6 + b
-5 + 6 = b
1 = b
so ur equation is : y = 3/4x + 1
