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Answer:

Step-by-step explanation:
From C-A, it goes from y=1 to y=5, so that 4 units
From A-B, it goes from x = -1 to x = 4, that is 5 units
Now, to find distance from B to C, we need to use the distance formula:

Where the variables are the respective points of B and C,
B (4,5) & C(-1,1)
So x_1 =4, y_1=5, x_2=-1, y_2=1
Plugging into the formula we get:

Summing it all (perimeter is sum of 3 sides):
Distance = 
3rd answer choice is right.
Answer=18 pages
Steven read 9 pages on Monday. If he needs to read DOUBLE that amount on Tuesday, then we need to take the number of pages he read on Monday and times it by 2.
9*2=18pages
Steven needs to read 18 pages on Tuesday.
**Remember that Double is the same as 'two times more', or 2x more...
Area of a triangle is given by half the product of two of the sides and the sine of the included angle.
Thus, the area of the triangle is 0.5 x 27.6 x 30 x sin 23^o = 161.76 cm^2

so the missing term in the denominator is 7^(-22)
ok done. Thank to me :>