All categories

3 years ago

Find the measure of c

Mathematics

1 answer:

Volgvan3 years ago

5 0

9514 1404 393

Answer:

140°

Step-by-step explanation:

The long arc intercepted by angle c is 360° -80° = 280°. The measure of inscribed angle c is half the measure of the arc it intercepts.

c = 280°/2 = 140°

You might be interested in

The question is in the picture.

dangina [55]

Let's denote no of seats in first row with r1 , second row with r2.....and so on.

r1=5

Since next row will have 10 additional row each time when we move to next row,

So,

r2=5+10=15

r3=15+10=25

<u>Using the terms r1,r2 and r3 , we can find explicit formula</u>

r1=5=5+0=5+0×10=5+(1-1)×10

r2=15=5+10=5+(2-1)×10

r3=25=5+20=5+(3-1)×10

<u>So for nth row,</u>

rn=5+(n-1)×10

Since 5=r1 and 10=common difference (d)

rn=r1+(n-1)d

Since 'a' is a convention term for 1st term,

which is an explicit formula to find no of seats in any given row.

Using above explicit formula, we can calculate no of seats in 7th row,

r7=5+(7-1)×10

r7=5+(7-1)×10 =5+6×10

r7=5+(7-1)×10 =5+6×10 =65

which is the no of seats in 7th row.

8 0

4 years ago

WHat is 2x2x2x2x2x2+2=<br> 66<br> 76<br> 86<br> 96<br> 106

Alexeev081 [22]

Answer:

Step-by-step explanation:

$2 \times 2 \times 2 \times 2 \times 2 \times 2+2= \\ \\ = 64 + 2 \\ \\ = 66$

5 0

4 years ago

These cones are similar. Find the volume<br>of the smaller cone. Round to the<br>nearest tenth.<br>

sattari [20]

Answer:

Step-by-step explanation:

If the two cone are similar then the heights are the same

let us find the height of the bigger cone

$volume of cone= \frac{1}{3} \pi r^2h$

For the bigger cone

r= 3cm

v= 66cm^3

$66=\frac{1}{3}*3.142*3^2*h\\ 66=\frac{28.278}{3} *h\\h*28.278=198\\h=\frac{198}{28.278} =7cm$

For the smaller cone

r=2cm

v=?

h=7cm

$v=\frac{1}{3}*3.142*2^2*7\\\v=\frac{87.976}{3} \\\\\v=29.30cm^3$

7 0

3 years ago

(I will give brainliest) Which of the following statements explains how to solve for w in the equation A = lw?

forsale [732]

Answer:

I guess divide both side by l because to find w we have to eliminate l first......

6 0

3 years ago

Read 2 more answers

Write an equation in slope -intercept form for a line that passes through (-2,7) and (14,21)

Georgia [21]

(-2,7) and (14,21)

Find the slope by using the formula $m = \frac{y2 - y1}{x2 - x1}$

Plug in the numbers. $m = \frac{21 - 7}{14 - - 2} 
 \\ m= \frac{14}{16} = \frac{7}{8} 
$

Write it in point slope form first

y - y1 = m(x - x1)
y - 7 = 7/8(x - -2)
y - 7 = 7/8x + 1.75
+ 7 +7

y = 7/8x + 8.75

Our final equation would be: <span>y = 7/8x + 8.75</span>

7 0

4 years ago