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2 years ago

In a class of 29 students, 20 play an instrument and 18 play a sport.

Mathematics

1 answer:

kvasek [131]2 years ago

5 0

Answer:11/29

Step-by-step explanation:

The numerator is alredy given as 11 students play both an instrument and a sport. Denominator is how many students in the class which is 29.

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RoseWind [281]

I can the company sold 3,00 units in 2008, and 5,00 in 2012

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2 years ago

Identifying functions from relations

Mashutka [201]

I don’t know but I need the Points sorry for you

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1 year ago

Please Help me. Also if you could show your work thatd be great.

Over [174]

Answer:

3) $all \: real \: numbers$ , $( - \infty , \infty )$ , or $- \infty \leqslant x \leqslant \infty$ (same thing)

4) $- \infty < y < 0$ or $( - \infty ,0)$ (same thing)

5) $-2$ or $(0, -2)$ (same thing)

Step-by-step explanation:

3) Domain represents the amount of $x$ -values in a function. The image shows that the function's arrows point in both directions (right and left), infinitely, so the domain would be $all \: real \: numbers$ , $( - \infty , \infty )$ , or $- \infty \leqslant x \leqslant \infty$ (same thing).

4) Range represents the amount of $y$ -values in a function. The function goes downward forever ( $- \infty < y$ ) by the indication of an arrow and halts just under the y-axis ( $y < 0$ ). After combining these two inequalities, you see that the range is $- \infty < y < 0$ or $( - \infty ,0)$ (same thing).

5) The $y$ -intercept is where the function crosses the $y$ -axis. In this function, the $y$ -intercept is $-2$ or $(0, -2)$ (same thing).

5 0

2 years ago

Find the product of the sum of 3/5 and 1% and

dybincka [34]

Answer:

3/500

Step-by-step explanation:

3/5 x 1%

=> 3/5 x 1/100

=> 3/500

Hope it helps you

8 0

2 years ago

There are 20 parrots at the animal sanctuary. Their population is increasing at a rate of 15% per year. There are also 24 snakes

worty [1.4K]

For the answer to the questions above,
A) Parrots are following a Geometric Progression of 15% increase.

20(1.15), 20(1.15)², 20(1.15)³,

Function = 20(1.15)^n Where n is at the end of year, n =1, 2, 3, ..

Snakes are increasing by 4.

28, 32, 36,....

Function = 24 + 4n n = number of end year, n =1, 2, 3,...

B) After 10 years: 
Parrot = 20(1.15)¹⁰ = 80.91115471

Snakes = 24 + 4(10) = 64

C) After what time they are the same: 
We use trial and error:

Test: n 20(1.15^n) (24 + 4n)
 1 23 28
 2 26.45 32
 3 30.41 36 
 4 34.98 40
 5 40.23 44
 6 46.26 48
 7 53.20 52
 8 61.18 56
 9 70.36 60

After year 7, the Parrots increases far more.
At year 7 they are roughly the same.

8 0

3 years ago