All categories

2 years ago

Each year a school organises a concert.

Mathematics

1 answer:

ZanzabumX [31]2 years ago

4 0

Answer:

A) i 346.5

ii 346.5

B) I 115 tickets

ii $430

iii 4.88%

C) 129

You might be interested in

Last math question. 6th grade math

Karolina [17]

Answer:

The bag contains fewer than 10 carrots.

Catherine biked farther than 10 miles.

The chair is shorter than 20 inches.

Carlos scored over 20 points.

Hope that helps you sorry if it doesn't.

4 0

2 years ago

Read 2 more answers

When x=-2 and y=-3. - x^2? - 3xy + 2y^3 is

Angelina_Jolie [31]

Answer:

-66

Step-by-step explanation:

-(-2)^2=-4

-3(-2)(-3)+2(-3)^3= -62

-4-62= -66

3 0

3 years ago

Find the area of the sector.

kicyunya [14]

Answer:

D. 158.4 km²

Step-by-step explanation:

Area of sector = θ/360 * πr²

Where,

θ = 150°

r = 11 km

Substitute

Area = 150/360 * π * 11²

Area = 158.38863 ≈ 158.4 km² (nearest tenth)

3 0

3 years ago

Simple:

frozen [14]

9
16
81
2
4
30
3
20
24
9
46 ! :)

3 0

3 years ago

In a certain city, the daily consumption of water (in millions of liters) follows approximately a gamma distribution with α = 2

Ne4ueva [31]

Answer:

The probability that on any given day the water supply is inadequate $0.1991$

Step-by-step explanation:

Given

α = 2 and β = 3

As per Gamma distribution Function

$P(X>9)= 1-P(X\leq 9)\\$

Expanding the function and putting the given values, we get -

$[tex]1 - \int\limits^9_0 {f(x;2,3)} \, dx \\1- \int\limits^0_0 {\frac{1}{9}xe^{\frac{-x}{3} } \, dx\\\\= 1- \frac{1}{9} [x(-3e^{\frac{-x}{3}}) -\int\limits {(-3e^{\frac{-x}{3}})} \, dx]^9_0= 1- 1/9 [x(-3e^{\frac{-x}{3}}) -9e^{\frac{-x}{3}})} \, dx]^9_0\\1-((\frac{-1}{3} *9*e^({\frac{-9}{3}})- e^(\frac{-9}{3}))- ((\frac{-1}{3} *0*e^(\frac{-9}{3})-e^{\frac{-0}{3}})\\1-((-3e^{\frac{-9}{3} }-e^{\frac{-9}{3}}-(0-1))\\1-(1-4e^{-3})\\1-(1-0.1991)\\1-0.8009\\0.1991$

The probability that on any given day the water supply is inadequate $0.1991$

5 0

4 years ago