Answer:
Step-by-step explanation:
<u><em>The correct question is</em></u>
Translate the sentence into an equation using n as the unknown number. Then solve the equation for n.
5 increased by half a number is 11
Let
n ----> the unknown number
we know that
The linear equation that represent this situation is
solve for n
Multiply by 2 both sides
subtract 10 both sides
Using formula of difference of two squares a^2 -b^2 =(a-b)(a+b) we get
49p^2 -64y^2 = (7p -8y)(7p +8y)
and
1 - 25x^2 = (1 -5x)(1 +5x)
hope helped
Answer:
Bisect the segment that is the sum of the given segments
Step-by-step explanation:
You want to construct a line segment whose length is the average of two given line segments.
<h3>Solution</h3>
You know that the average of two lengths is half their sum. To construct a line that is half the sum ...
- Construct a segment equal to the sum. For example, from point X on a line, mark XY = AB to the left of X, and XZ = CD to the right of X. Segment YZ will be the sum of AB and CD.
- Bisect it. Draw arcs above and below YZ with the same radius equal to more than half of YZ. The line through the intersection points of each pair of arcs will be the perpendicular bisector of YZ. If it intersects YZ at Q, then YQ = QZ = average of AB and CD.
Answer:
117.8
Step-by-step explanation:
surface area = πr²+πrl, where r = radius and l = slant height
so,
πr²+πrl
= π×3²+π×3×9.5
= 75π/2
= 117.8 (rounded to the nearest tenth)
7200 i think? your question is a little weird, but maybe this will help!
