the circumference of a circle with the radius being 12.5 is C=78.54
Answer:
1. 1/4 2. -2.36 (I don't know this one for sure) 3. 3 4. -1.5 5. -2 6. -0.75
Step-by-step explanation:
To find slope you do one y minus another y the you do x minus another x. The you do rise over run (y/x). Then you divide y by x.
Answer:
∠1 and ∠2
∠3 and ∠4
∠5 and ∠6
Step-by-step explanation:
The question figure is shown below.
To find the angles which are supplementary angles.
Solution:
Supplementary angles are a pair of angles that lie on a straight line and hence the sum of the angle = 180°
In the figure shown below, there are three pairs of angles that lie on a straight line.
The pairs are:
∠1 and ∠2
∠3 and ∠4
∠5 and ∠6
Since all the three pairs of angles lie on a straight line, hence the pairs are called linear pairs or supplementary angles.
Hello!
Answer:⇒15√6 i
Step-by-step explanation:
√-54=3√6 i
5*3√6 i
Multiply the numbers.
5*3=15
=15√6 i
Hope this helps!
Thank you for posting your question at here on brainly.
-Charlie
The volume of a cylinder is given by the formula <em>V</em>=π<em>r</em>²<em>h</em>². In this instance, <em>r</em> is 4 and the height is 47-12 (the height of the cone at the bottom is 12 mm and the sand goes up to 47 mm on the top portion of the hourglass, including both the cone and cylinder) or 35 mm.
<em>V</em>=π(4²)(35)=560π mm³.
The volume of a cone is given by the formula <em>V</em>=1/3π<em>r</em>²<em>h</em>². In this instance, <em>r</em> is 4 and the height is 12 mm.
<em>V</em>=1/3π(4²)(12)=π(1/3)(12)(4²)=π(4)(4²)=64π mm³.
This gives a total volume of 560π+64π=624π mm³ of sand.
Since the sand goes down to the bottom at a rate of 10π mm³/second, it will take 624π/10π=62.4 seconds for the sand to all drain out.
