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Darya [45]
3 years ago
5

Heeeelp me Asp need this

Mathematics
1 answer:
gavmur [86]3 years ago
7 0

Answer:

False; True; True

Step-by-step explanation:

If the radius is 4, the area of the circle is

pi*r*r = pi * 4 * 4 = 16pi; The second statement is true.

The entire circle's "angle" is 2pi, so the sector takes (2pi/3) / 2pi of it all, equal to 1/3 of the entire circle - hence the area of the sector is

16pi * 1/3 = 16pi/3; the first statement is false

The length of the entire circle is 2 * pi * r = 2 * pi * 4 = 8pi

The sector is 1/3 of that, so 8pi/3; the third statement is true.

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Demitri's parents begin saving for his college fund when Demitri is 10 years old. They invest $5,000 in an account that earns 1.
qaws [65]

Answer:

yes

Step-by-step explanation:

A = P(1 + r)^t

A = total amount

P = principal

r = interest rate, as a decimal

t = time, in years

A = 5000·[(1 + .012)^8]

A = 5000(1.1001)

A = 5,500.65

amount of investment after 8 years = $5,500.65

two years of community college = $5,400

3 0
3 years ago
Read 2 more answers
An animal park has lions, tigers and zebras. 20% of the animals are lions and half of the animals are zebras. If there are 120 a
RoseWind [281]

Answer:

36\ tigers

Step-by-step explanation:

Let

x ----> the number of lions

y ----> the number f tigers

z ----> the number of zebras

we know that

x+y+z=120 ----> equation A

Remember that

20\%=20/100=0.20

50\%=50/100=0.50

To find out the number of lions, multiply the total animals by the percentage of lions

x=0.20(120)=24\ lions

To find out the number of zebras, multiply the total animals by the percentage of zebras

z=0.50(120)=60\ zebras

Substitute the value of x and the value of z in equation A and solve for y

24+y+60=120

y+84=120

y=36\ tigers

6 0
3 years ago
Problem page the perimeter of a rectangular field is 358 yards. if the width of the field is 81 yards, what is its length?
Basile [38]
4.41?... maybe, not sure for sure 
5 0
4 years ago
You have $1.55 worth of dimes and nickels in a jar. There are 23 coins in the jar. How many dimes do you have? How many nickels
Scilla [17]

i believe the answer is 35 dimes and 65 nickels (sorry if i’m wrong lol)

3 0
3 years ago
Write a rational function that has the vertical asymptote x = 1 and the horizontal asymptote y = 2.
Slav-nsk [51]

Answer:

f(x) = 2x / (x - 1)

Step-by-step explanation:

One such function would be:

           2x

f(x) = -----------

            x - 1

f(x) is undefined at x = 1, so has a vertical asymptote at x = 1.

As x increases without bound, f(x) approaches (2x) / (x), or just 2.  Thus, f(x) has the horiz. asy. y = 2.

6 0
3 years ago
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