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WINSTONCH [101]
3 years ago
12

The diameter of a circle is 20 miles. What is the angle measure of an arc bounding a sector with area 10​ square miles?

Mathematics
1 answer:
klio [65]3 years ago
8 0
A=(απr^2)/360=(απd^2)/1440   (r^2=d^2/4)

α=1440A/(πd^2)

s=απd/360  (where s=arc length) so

s=(1440Aπd)/(360πd^2)

s=4A/d and since A=10mi^2 and d=20mi

s=(4*10)/20

s=2 miles
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PLZZZ I HAVE 10 MINUTES
prohojiy [21]

Answer:

Option D is correct

Step-by-step explanation:

When a cube with sides numbered 1 through 6 is rolled one time, the possible events are six i.e. getting {1,2,3,4,5,6} , with equal probability for each.

Of these, the events for which we get 4 or greater are {4,5,6} i.e. three events.

Hence probability of getting 4 or greater is

\frac{3}{6}  =  \frac{1}{2}

<h3>Hope it is helpful....</h3>
8 0
3 years ago
PLEASSEEEE FIGURE THIS OUT PLSSSSSSSS
leonid [27]

Answer:

$19026.90

Step-by-step explanation:

use An = P(1-r)^n

which would look like

An = 29,000(1 - 0.1)^4

An = 29,000(.9)^4

An = 29,000(0.6561)

An = 19026.9

Part b

Answer:

$670,432.24

use An = P(1+r)^n

An = 435,500(1+ 0.04)^11

An = 435,500(1.04)^11

An = 435,500(1.5394...)

An = 670,432.2415

5 0
2 years ago
SOMEONE PLEASE HELP I CANT GET IT
AnnyKZ [126]
Answer:
y=3x+9

Explanation:
To answer this question, we first have to understand a few key concepts.

1) The equation given (y=3x+9) is written in slope-intercept form, which is y=mx+b.

Heres what the variables mean:
Y=the coordinate
M=the slope
X=the x coordinate
B=the y-intercept (the point on the line that intercepts the y-axis)

2) Parallel lines have the same slope. Using the given equation, we now know that the slope of line s is 3. Therefore, the slope of line t is also 3 (because they are parallel).

So now, this is our equation so far:
y=3x+b

All we need to do now is find b, which we can do by plugging in the coordinate (-6,-9) as the x and y variables.

y=3x+b
-9=3(-6)+b
-9=-18+b
Add 18 to both sides
-9+18=-18+b+18
9=b

And when we plug 9 into y=3x+b, we get:
y=3x+9

(And yes, they are pretty much the same line)

I hope this helps! Please comment if you have any questions.
5 0
4 years ago
Hernando ate StartFraction 2 Over 8 EndFraction of a pizza for a dinner. He gave his 6 friends the rest of the pizza and told th
Sidana [21]

Answer:

Yes, because there were 8 pieces to start with. Hernando ate 2, leaving six pieces to split equally between his other six friends.

7 0
2 years ago
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marishachu [46]

Answer:

x = -44.3

Step-by-step explanation:

2x+450 = 7-8x

Add 8x to each side

2x+8x+450 = 7-8x+8x

10x+450 =7

Subtract 450 from each side

10x+450-450 = 7-450

10x = -443

Divide each side by 10

10x/10 = -443/10

x = -44.3

7 0
3 years ago
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