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3 years ago

3. Use substitution to solve the system of

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

5 0

Answer:

infinite solutions

Step-by-step explanation:

the lines are coincident, so there are infinite solutions

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Solve this pls I beg

Likurg_2 [28]

Answer:

-4 < n ≤ 5

Step-by-step explanation:

_________________

3 0

3 years ago

PLEASE ANSWER HURRY THANK YOU

Juliette [100K]

Answer: A. $\dfrac{6}{203}$

Step-by-step explanation:

Given : Jason bought 10 of the 30 raffle tickets for a drawing.

i.e. Total tickets = 30

Also, Number of prizes = 3

The total number of combinations of getting 3 prizes out of 30 tickets = $^{30}C_3$

The number of combinations of getting 3 prizes out of 10 tickets = $^{10}C_3$

Then, the probability that Jason will win all 3 of the prizes if once a raffle ticket wins a prize it is thrown away will be :

$\dfrac{{^{30}C_3}}{^{10}C_3}$

$=\dfrac{\dfrac{10!}{3!7!}}{\dfrac{30!}{3!27!}}=\dfrac{120}{4060}=\dfrac{6}{203}$

Hence, the probability that Jason will win all 3 of the prizes if once a raffle ticket wins a prize it is thrown away is $\dfrac{6}{203}$ .

Hence, the correct answer is A. 6/203.

3 0

3 years ago

Read 2 more answers

The function given represents the temperature of a sauna set to 180°F. The temperature goes up and down throughout the day. Find

nasty-shy [4]

Answer:

The answer is below

Step-by-step explanation:

Given the function as:

f(x)=5sin(πx / 15)+180,

a) The angular frequency (ω) = 2π * frequency

but ω = π/15, hence:

π/15 = 2π * frequency

frequency = (π/15)/2π

frequency = 1/30 hertz

Period (T) = 1/frequency = 1/(1/30) = 30 seconds

b) The period is 30 seconds. This means that it reaches the maximum temperature every 30 seconds.

In one hour (3600 s), the number of times the function reaches a maximum temperature = 3600 s / 30 s = 120

3 0

3 years ago

In a survey of students, 80% were girls and 20% were boys. of the girls surveyed, 40% were wearing sneakers. if a surveyed stude

prisoha [69]

Answer:

$\frac{8}{25}$

Step-by-step explanation:

probability of selecting a girl from students is $\frac{4}{5}$

probability of girl wearing sneaker from girls is $\frac{4}{10}$ or $\frac{2}{5}$

hence, probability of selecting a girl wearing a sneaker will be,

⇒ probability = probability of delecting a girl from students × probability of girl wearing sneakers from girls

⇒ probability = $(\frac{4}{5})( \frac{2}{5})$

⇒ probability = $\frac{8}{25}$

3 0

4 years ago

Choose the words or phrases that best complete the sentences. A fifth degree polynomial (must, could) have 5 linear factors. The

Vika [28.1K]

First of all, a fifth degree polynomial means that the term with the highest degree is five.
so,

<span>A fifth degree polynomial could have 5 linear factors. The factors could but don't have to be distinct.</span>

3 0

4 years ago

Read 2 more answers