Option B: isosceles
Option D: right
Solution:
Given data:
Three sides of the triangle are 5 cm, 7.1 cm and 5 cm.
If any two sides of a triangle are equal in length, then the triangle is called
an isosceles triangle.
Here, one side = 5 cm and the another side = 5 cm
Therefore the given triangle is isosceles.
If any one of the angle is 90°, then the triangle is right angled triangle.
Here "L" symbol represents the angle is 90°.
Therefore the given triangle is right angled triangle.
Option B and Option D are correct answer.
Hence the triangle is isosceles and right triangle.
Answer:
(-7,2)
Step-by-step explanation:
3x+8y=-5
-2x+2y=18
so first of all, you want either x or y to be the same for both equations <em>(it can be negative or positive but has to be the same number)</em>
to do that, we'll multiply them:
I'll do y because it is easier
(-2x+2y=18) 4
<u>-8x+8y=72</u>
<u>3x+8y=-5
</u>
the y's now match
let's subtract them because they're both positive
-8x - 3x = -11x
8y - 8y = 0
72 - (-5) = 77
so -11x = 77
which results to x = -7
now we need the y.
to do that, we simply plug in the x in any of the equations:
-2x+2y=18
-2 (-7) + 2y = 18
14 + 2y = 18
2y = 4
y = 2
so the answer is (-7,2) if you're looking for a point
Answer:
$19
2 pounds
Step-by-step explanation:
2(2) + 15
4 + 15
$19
4(2) + 11
8 + 11
$19