3 years ago

What is 2+2 i need to know

Mathematics

1 answer:

Kaylis [27]3 years ago

8 0

Answer:

Step-by-step explanation:

2+2=4

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Which expression represents the algebraic phrase "eleven less than seven times a number"? 11x - 7 7 x minus 11 11 + 7x 11 minus

SIZIF [17.4K]

Answer:

7x minus 11

Step-by-step explanation:

7x would be 7 times whatever x is. then you subtract 11 from 7x. the reason you’re subracting 11 from 7x is because 11 has to be less than 7x (i understand negatives, but we’re not using that in this problem.)

4 0

3 years ago

Read 2 more answers

Use the fact that the length of an arc intercepted by an angle is proportional to the radius to find the area of the sector give

Hunter-Best [27]

$\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta r^2}{2}~~
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad radians\\
------\\
r=3\\
\theta =\frac{\pi }{4}
\end{cases}\implies A=\cfrac{\frac{\pi }{4}\cdot 3^2}{2}\implies A=\cfrac{\frac{9\pi }{4}}{2}
\\\\\\
A=\cfrac{9\pi }{4}\cdot \cfrac{1}{2}\implies A=\cfrac{9\pi }{8}$