7y2+2y2+3-6y2-3y2-4
7y2+6y2+2y-3y+3-4
y2-y-1
Answer: A and E
Step-by-step explanation:
A. Correct
You know this is an isisceles triangle because of the markers on the sides. The markers mean the sides are equal. Also, the lengths are both 8.
B. Incorrect
A scalene triangle is a triangle where all 3 sides have different lengths. The picture shows an isosceles triangle.
C. Incorrect
Even is this may seem like an acute triangle because of the 45°, but this is actually not an acute triangle. An acute triangle requires for all its sides to be less than 90°. The right angle at the bottom right is 90°, not less than.
D. Incorrect
An equilateral triangle has 3 equal sides. The 3 sides in thsi triangle are not equal.
E. Correct
This is a right triangle. You can tell by the right angle label on the bottom right.
F. Incorrect
An obtuse triangle has an angle that is greater than 90°. No angle on this triangle is larger than 90°.
<h2>
Answer:</h2>
All we need to do is solve for y.
The answer is <em>A. y = 4x + 11</em>.
Answer:
12y - x - 28 = 0
Step-by-step explanation:
............
Answer:
b. One
Step-by-step explanation:
A (standard-form) linear equation in one variable always has exactly one solution.
___
We add the qualifier "standard-form" to eliminate equations of the form
x = x . . . . infinite solutions
or
x = x + a . . . a ≠ 0 . . . . no solutions
When the first of these is put into standard form, it is ...
0 = 0 . . . . no longer a linear equation
When the second of these is put into standard form, it is ...
0 = a . . . . no longer a linear equation in x (and not true, either)
In standard form the given equation is ...
y = 6 . . . . . one solution
