Answer:
BC ≈ 14 units
Step-by-step explanation:
using Pythagoras' identity in the right triangle.
the square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is
BC² + AB² = AC²
BC² + 18² = 23²
BC² + 324 = 529 ( subtract 324 from both sides )
BC² = 205 ( take square root of both sides )
BC = 
= 14.317.. ≈ 14 units ( to the nearest unit )
Answer: y = 2
Explanation:
When x = 3, y = -15
And x and y are directly proportional.
thus x + k ==> y + k
when x = 3 + 17 ==> y = -15 + 17
=> x = 20 ==> y = 2
Answer:
Step-by-step explanation:
surface area of cuboid=2(l*b+b*h+h*l)
=2(15*15+15*7+7*15)
=2(225+105+105)
=2*435
=870
Similar triangles that have a scale ratio other than 1 are not congruent triangles.
The true statement about the proportions of the sides is 
The scale ratio is given as: 5 : 2
And the corresponding sides are given as:
- AB and DE.
- BC and EF.
- CA and FD.
The above highlights mean that,
Hence, the true statement is
Read more about similar triangles at:
brainly.com/question/14285697
Answer:
The thickness of each page of a 300-page novel is 3/20 cm. If the 2 covers are each 7/8 cm thick, find the total thickness of the book.
Well it seems to me that a 300 page novel only realy has 150 peices of paper to it.
odd pages on the front side and even pages on the back side.
24.25 cm : My goodness those pages are very think!
Step-by-step explanation:
