2x -20 -1 =0
2x -21=0
2x=21
x= 10.5
Step-by-step explanation:
ABC is an isoceles triangle (both legs are equally long). and AB is its baseline.
OC is now a median for ABC splitting the angle at C and AB in half.
so, we have 2 right-angled triangles : OAC and OBC.
the half-angles at C are 42/2 = 21°.
the angles at A and B are 90°.
and the half-angles at O are 180 - 90 - 21 = 69°.
remember that the sum of all angles in a triangle must always be 180°.
AB are the heights of both of these triangles.
the single height is sin(69)×7 = 6.535062985... cm
and so,
AB = 2× height = 13.07012597... cm.
Well I can still answer that question without the following and it will be 44,000
Answer:
The square root of 8 is expressed as √8 in the radical form and as (8)½ or (8)0.5 in the exponent form. The square root of 8 rounded up to 8 decimal places is 2.82842712. It is the positive solution of the equation x2 = 8. We can express the square root of 8 in its lowest radical form as 2 √2.
Square Root of 8: 2.8284271247461903
Square Root of 8 in exponential form: (8)½ or (8)0.5
Square Root of 8 in radical form: √8 or 2 √2
Answer:
<h2>17.72</h2>
Step-by-step explanation:
The formula of a distance between two points:
We have the points (4, -1) and (9, 7). Substitute:
