Answer:
3X-7=93,=3x=86=x=28.67
Step-by-step explanation:
The ratios are equivalent because you multiplied 18:4 by 2&3. And also you divided it by 2. I had the same homework!
Answer:
They're all the same distance from 0 on the number line.
Step-by-step explanation:
That's a similarity. If you want to know the difference, then it should be that one is greater than 0, and the other is less than 0.
I'm pretty sure that's what you're asking for, right?
Answer:
Congruent triangles are the triangles whose shape and size are equal. In other words, the triangles whose corresponding sides and angles are equal, are known as congruent triangles.
Similar triangles are the triangles whose shape is equal but the size may vary.
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Sine of the angle = opposite side over the hypotenuse
sin(42°) = 6.5/h
rearrange, solve for h
h = 6.5/sin(42°)
h = 9.7 cm
For the other triangle, the angle is unknown. I'd split it into two right triangles; down angle x since it is an isosceles it will be bisected into two equivalent triangles.
The hypotenuse we just found is now split in half. 9.7/2 = 4.9 base of the new smaller right triangle.
The new hypotenuse of the smaller triangle is 7.4 cm
Then you have..
sin(x/2) = 4.9/7.4
sin(x/2) = 0.67
use inverse sine function
arcSin(0.67) = x/2
41 = x/2
82° = x
There are many ways to solve this problem. This is just what I thought of first using trig.
