Answer:
= $ (x + 145 + 145)
= $ (x + 290)
So in this way end of every week her salary will increase by $ 145.
Step-by-step explanation:
This is the concept of application of geometry; the distance that the ladder should be placed will be given by Pythagorean theorem.
thus;
c^2=a^2+b^2
where, c=hypotenuse, a and b are the legs
hence;
15^2+12^2+b^2
b^2=15^2-12^2
b^2=225-144
b^2=81
getting the square root of both sides;
b=sqrt81
b=9
therefore the ladder should be placed 9 feet from the wall for it to reach 12 feet up the building
Answer:
B.
Step-by-step explanation:
f(x) has two complex roots and one real root.
Answer:
The volume of the bucket is 122.52 cm³.
Step-by-step explanation:
Given : A frustum is a cone with the end chop off a bucket in the shape of a frustum has diameters of 10 cm and 4 cm at its ends and a depth of 3 cm.
To find : Calculate the volume of this bucket ?
Solution :
The diameters of frustum is
D=10 cm ⇒ R= 5 cm
d=4 cm ⇒ r= 2 cm
The height is h=3 cm
The volume of the frustum is given by,
Substitute the value in the formula,
Therefore, the volume of the bucket is 122.52 cm³.