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3 years ago

On a circle of radius 10 feet, what angle would subtend an arc of length 1 feet?

1 answer:

6 0

$\bf s=\cfrac{r\theta \pi }{180}\quad 
\begin{cases}
r=radius\\
\theta=\textit{angle in degrees}\\
s=\textit{arc's length}\\
--------------\\
r=10\\
s=1
\end{cases}
\\\\\\
1=\cfrac{10\cdot \theta\cdot \pi }{180}\impliedby \textit{solve for }\theta$

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A concert venue has 20 seats in the first row and an 5 additional seats in each successive row. If there are 35 rows of seats th

forsale [732]

Answer:

3,675 people

Step-by-step explanation:

First row, a = 20

Common difference, d = 5

number of terms, n = 35

Sn = n/2 {2a + (n - 1)d}

= 35/2 {2*20 + (35 - 1)5}

= 35/2 {40 + ( 34)5}

= 17.5(40 + 170)

= 17.5(210)

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3 years ago

PLEASE HELP !!!

Art [367]

-3•-4=12, and -3+-4=-7.
this will turn into
(x-3)(x-4)
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x-3=0, x-4=0
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3 years ago

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Lostsunrise [7]

Answer:

Step-by-step explanation:

so to solve this you have to be smart.

6yd and 5y^2

s.a=2lw+2wb

yb=86/7 = 42/855

9/6=2 and 2^2=4

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3 years ago

Read 2 more answers

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dusya [7]

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3 years ago

Read 2 more answers

Clare made an error when solving -4x + 3 < 23

Fittoniya [83]

Answer:

Clare didn't change the inequality symbol in the last step to >

Step-by-step explanation:

Given inequality is:

$-4x+3$

Clare's error was in the last step where she multiplied the inequality by -4 to remove the minus sign with x. When an in equality is multiplied/Divided by a negative number then the sign of inequality is reversed. < is changed to > and > is changed to less than.

The answer must have been x > -5

The correct way to solve is:

$-4x+3$

Hence,

Clare didn't change the inequality symbol in the last step to >

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3 years ago