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wel
3 years ago
10

Find the areas of the sectors formed by ABC

Mathematics
1 answer:
Amanda [17]3 years ago
6 0

Answer:

33.51 in^2

Step-by-step explanation:

Find the area of the circle:

A = πr^2

A = π * 8^2

A = 64π = 201.06 in^2

Find the area of the 60 deg slice:

A * 60/360 = 33.51 in^2

Leave a thanks and mark brainliest if this helped

Leave a thanks and mark brainliest if this helped

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There are 195 adults and 320 children at a zoo. The zoo makes a total of $6,515 from the entrance fees, and the cost of an adult
Ostrovityanka [42]

Answer:

a+c=27

195a+320c=6515

Step-by-step explanation:

adult (a): 195

children (c): 320

total $: $6515

child $: 27

a+c=27 --> c=-a+27

195a+320c=6515

sub the first equation into the 2nd equation to get a=17

sub a=17 into c=-a+27 to get c=10

so, an adult ticket is $17 and a child ticket is $10.

6 0
2 years ago
line k has a slop of -5. Line J is perpendicular to line K and passes through the point (5,9). Create the equation for line j.
sveticcg [70]

Answer:

The equation of the line would be y = 1/5x + 8

Step-by-step explanation:

Since the slope of k is -5, the slope of j has to be 1/5. This is because perpendicular lines have opposite and reciprocal slopes.

Now we can use the slope and the point in point-slope form to get the equation.

y - y1 = m(x - x1)

y - 9 = 1/5(x - 5)

y - 9 = 1/5x - 1

y = 1/5x + 8

6 0
2 years ago
Which of these are rational? (Select all that apply)
Anon25 [30]
ABCEG. Not D because non terminating numbers are irrational, same goes for Pi
6 0
3 years ago
Help with 21 and 24 those make no sense and I need those one for a test that I am studying for
babymother [125]

Answer to 21 5 stands for left handers and 8 for right handers. Their are 45 left handers. 45/5 is 9. 9 times 8 is 72. for section b 5+8 is 13 so the answer is 5 over 13. Answer to 24 the table goes 1:5:7, 2:10:14,3:15:21, 4:20:28 on 7 graders the open spaces are 14 and 21 so their is 7 seventh graders for each moral. Their are 5 6th graders because on the first space their are 5 and it is one moral.
3 0
3 years ago
Which function models the area of a rectangle with side lengths of 2x - 4 units x - 1 units
elena-s [515]

The choices are missing but we can find the answer from the given information

Answer:

The function which models the area of the rectangle is A(x) = 2x² - 6x + 4

Step-by-step explanation:

The formula of the area of a rectangle is A = l w, where l is its length and w is its width

∵ The length of a rectangle is (2x - 4) units

∵ The width of the rectangle is (x - 1) units

- Use the formula of area to find its area

∵ A = l w

∴ A = (2x - 4)(x - 1)

Let us multiply the two brackets

∵ (2x - 4)(x - 1) = (2x)(x) + (2x)(-1) + (-4)(x) + (-4)(-1)

∴ (2x - 4)(x - 1) = 2x² + (-2x) + (-4x) + 4

- Add the like terms

∴ (2x - 4)(x - 1) = 2x² + (-6x) + 4

∴ (2x - 4)(x - 1) = 2x² - 6x + 4

Write A as a function of x

∵ The area of the rectangle is A(x)

∵ The area of the rectangle is 2x² - 6x + 4

∴ A(x) = 2x² - 6x + 4

The function which models the area of the rectangle is A(x) = 2x² - 6x + 4

6 0
3 years ago
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