Answer:
a) 625; 625; right triangle
b) 205; 256; obtuse triangle
Step-by-step explanation:
The squares are values found in your memory or using a calculator. It is straightforward addition to find their sum.
<h3>left side</h3>
7² +24² = 49 +576 = 625
25² = 625
The sum of the squares of the short sides is the square of the long side, so this is a right triangle.
__
<h3>right side</h3>
6² +13² = 36 +169 = 205
16² = 256
The long side is longer than is needed to form a right triangle, so the largest angle is more than 90°. This is an <em>obtuse triangle</em> (as shown).
Answer:
-2.5
Step-by-step explanation:
This is half way between -2 and -3
3x + 2y=-10 equation 1
y=-x -4 equation 2
use the substitution method of elimination to get the answer to the question.
*using substitution
substitute equation 2 in one and we get
3x +2(-x-4)=-10
3x- 2x-8=-10
x=-2 and y=-2
Answer:
B
Answer:
24 students
Step-by-step explanation:
Since students on opposite sides of the circle are 30 feet apart, the circumference of the circle is πd≈94.2. Since each student takes up 4 feet of space, 94.2/4=23.55 which we can round to 23 or 24 students.
Answer:
<h2>7x + 3</h2>
Step-by-step explanation:
The circumference of any polygon is equal to the sum of the lengths of the sides of this polygon.
Therefore
P = 2x + (x + 5) + (4x - 2) <em>combine like terms</em>
P = (2x + x + 4x) + (5 - 2)
P = 7x + 3
