3 years ago

What does the expression 0.30y represent ?

Mathematics

1 answer:

Vilka [71]3 years ago

5 0

The expression represents 0.30 times y, but I do not know the value of y.

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the radius of the curvature is 10ft and the height of the segment is 2ft whatthe length of the chord ? a.10ft, b.15, c.7.5 ,d.12

arsen [322]

Radius of curvature = 10'
Diameter of circle = 2 * 10' = 20'
height of segment = 2'
Let semi-chord be x.
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2 years ago

How do i solve 7x^{2} +11y^{2} =40

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Answer:

Step-by-step explanation:

There is no solution as you have two variables and only one equation. The best you can do is solve for one variable as a function of the other.

$7x^2+11y^2=40\\ \\ 11y^2=40-7x^2\\ \\ y^2=\frac{40-7x^2}{11}\\ \\ y=\sqrt{\frac{40-7x^2}{11}}$

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3 years ago

The area of a circle is 25pi m squared what is the circumference

IceJOKER [234]

$\bf \textit{area of a circle}\\\\
A=\pi r^2\quad 
\begin{cases}
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-----\\
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\\\\\\
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-------------------------------\\\\
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