Step-by-step explanation:
an object and its shadow create a right-angled triangle.
2 objects and their shadows create 2 similar right-angled triangles.
that means the angles are the same, and the side lengths of one triangle all correlate with the corresponding side lengths of the other triangle via the same factor.
so,
42 × f = 6
f = 6/42 = 1/7
the length of Joel's shadow is then
20 × f = 20 × 1/7 = 2.857142857... ft
Answer:
Domain is all real no. of x
Step-by-step explanation:
f(x) = 6(0.25^x)
Is defined for all real no.s of x
g(x) is a reflection of f(x) along the y-axis:
g(x) = -f(x) = -6(0.25^x)
Also defined for all x
It is A Scalene triangle
A scalene triangle<span> is a </span>triangle<span> that has three unequal sides, such as those illustrated above. SEE ALSO: Acute </span>Triangle<span>, Equilateral </span>Triangle, IsoscelesTriangle<span>, Obtuse </span>Triangle<span>, </span>Triangle<span>. CITE THIS AS: Weisstein, Eric W. "</span>
This one is easy. All you have to do is divide 84/7. and then you will have the amount of 12 so each of Danny's friends contributes $12.
Answer:
point "i" has coordinates (-x, y)
Step-by-step explanation:
Any point on the horizontal line containing point A will have the same y-coordinate. It appears that point "i" in the diagram is a point on the circle and on the horizontal line, so is the point you're looking for. Because the circle is centered at the origin, point "i" will have an x-coordinate that is the opposite of that of point A.
Point "i" is such a point. It has coordinates (-x, y).
