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Allisa [31]
3 years ago
13

It says to calculate the area of the sector and t round to the nearest hundredth and to use 3.14 for Pi

Mathematics
1 answer:
fenix001 [56]3 years ago
5 0

Answer:

Step-by-step explanation:

The formula for the area of a sector is

A=\frac{\theta}{360}*\pi r^2 where theta is the measure of the central angle (which is the same measure as that of the arc that is intercepted by the 2 radii formig the angle), and r is the radius.

For us, theta is 90 degrees and r is 20. Filling in the formula:

A=\frac{90}{360}*(3.14)(20)^2 which simplifies down a bit to

A=\frac{1256}{4} so

A = 314 m squared

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A student council consists of 15 students. Two council members have the same major and are not permitted to serve together on a
tiny-mole [99]

Answer: 4004ways

Step-by-step explanation:

Total number of Students =15

Total number of students to be on the committee =5

Since two members are of the same major and must not be on the committee, then we are left with choosing 5 people from just 14 People after we eventually remove one from those two students with same majors.

Hence to select 5 people from 14 people, we use the combination formula 14C5.

From the two students with same major we also use the combination Formula in knowing the number of ways any of the two students can be chosen. To choose one from these two students, we use the combination Formula 2C1.

Hence, the total number of ways to choose the committee of 5 and ensuring the two students with same major aren't on the committee becomes:

= 14C5 * 2C1

= 2002 * 2

= 4004ways.

3 0
3 years ago
Kyle has ​$1 comma 000 in cash received for high school graduation gifts from various relatives. He wants to invest it in a cert
Vera_Pavlovna [14]

Answer:

$1077.283

Step-by-step explanation:

When complete the first year the amount will be:

1000 * 1.015= 1015

1.015 because the rate is added to the initial amount, that is: 100%+1.5% = 1 + 0.015= 1.015

When complete the second year the amount will be the last year amount adding the rate interest:

1015*1.015=1030.225.

To the third year:

1030.225*1.015=1045.678

To the fourth year:

1045.678*1.015=1061.363

To the fifth year:

1061.363*1.015=1077.283

4 0
3 years ago
Which choice below lists all of the square roots of the number 15?
grigory [225]

Answer:

A is your answer

Step-by-step explanation:

6 0
2 years ago
26=2y-14 plz help out thxs :)
ASHA 777 [7]
26=2y-14\\
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3 years ago
BRAINLIEST, MEDAL, STARS!!! PLEASE HELP MAEEE! TRIANGLE INEQUALITY THEORM! which collection of three side lengths can be used to
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C.  The Triangle Inequality Theorem States that any two sides of a triangle must be greater than the third side. It cannot be A because 35+40= 75, which is not greater than 75. It cannot be B because 40+30= 70, which is not greater than 75. It cannot be D because 35+40= 75, which is not greater than 80. It is C because 40+30= 70, which is greater than 65.
6 0
3 years ago
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