Answer:
(A)Z(-3,-7)
Explanation:
The rotation of a point (x,y) by 180 degrees gives the point (-x,-y).
That is:
If the image point after rotation is (3,7), the coordinates of the pre-image will be:
The correct option is A.
The answer is: 1372 in. squared
Because the apothem will always be half of the length of one side. The length of one side is 28 in.
The formula for the area is:
Area = (number of sides × length of one side × apothem)/2
Working out:
A = (7 times 28 times 14) divided by 2 = 1372 in. squared
Hope this helps!
Please give Brainliest!
Answer:
2/3
Step-by-step explanation:
2x + 5 = 8x+ 1
5 - 1 = 8x - 2x
4 = 6x
x= 4/6➡2/3
Answer:
Let x = speed for the first 96 miles
x - 9 = speed for the last 100 miles
Distance = (rate)(time), so time = (distance)/(rate)
(time for first part of trip) + (time for last part of trip) = 4 hours
So, (96)/(x) + (100)/(x - 9) = 4
Multiply both sides by the LCD (x)(x - 9) to get
96(x - 9) + 100x = 4x(x - 9)
96x - 864 +100x = 4x2 - 36x
4x2 - 232x + 864 = 0
Divide both sides by 4 to obtain x2 - 58x +216 = 0
(x - 4)(x - 54) = 0
x = 4 or x = 54
Note that x can't equal 4 because, in that case, x - 9 would be negative, so x = 54 miles per hour.
Step-by-step explanation:
ok