Answer:
x=7,3
Step-by-step explanation:
x^2-8x+14=2x-7
Add 8x to both sides.
x^2+14=10x-7
Add 7 to both sides.
x^2+21=10x
x^2+7*3=10x
(x*7)+(x*3)=10x
x=7,3
Hope this helps plz hit the crown :D
Answer:
2.33
Step-by-step explanation:
imagine a circle. its center is A, and it goes through B, so its radius is AB.
then it is important to know that the sum of all the angles in a triangle is 180 degrees.
one angle (at C) is 90. the angle at B is 25. so, the angle at A is 180 - 90 - 25 = 65 degrees.
more back to our circle.
in this circle the line CB is the sine of the angle at A multiplied by the radius.
and AC is the cosine of the angle at A multiplied by the radius.
we can ignore the orientation + and - of these functions, as we are only interested in the absolute length (and we can mirror the triangle, and all the angles and side lengths still stay the same).
=> CB = sin(A)×AB
AC = cos(A)×AB
=> 5 = sin(65)×AB
=> AB = 5 / sin(65)
=> AC = cos(65)×5/sin(65) = 5 × (cos(65)/sin(65)) =
= 5 × cot(65) = 2.33
Answer:
Step-by-step explanation:
It's the formula of a circumference:
d - diameter
Solve for d:
<em>divide both sides by π</em>
Answer: −5
Step-by-step explanation:
simplify: (−5)
Re-order terms so constants are on the left:
(−5)f(−5)−5
Answer:
the independent variable is the washing powder and the dependent variable is the shirts.
Step-by-step explanation:
when they changed the washing powder the shirt number changed.