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Vesnalui [34]
3 years ago
13

Which ordered pair is a solution to the system of inequalities? y< 3x y< 5

Mathematics
2 answers:
kvv77 [185]3 years ago
5 0

(9,4)

(apex),i tried it on my test

GaryK [48]3 years ago
4 0

Answer:

<h2>Any point on the purple region.</h2>

<em>Look at the picture.</em>

Step-by-step explanation:

<, > - dotted line

≤, ≥ - solid line

<, ≤ - shaded region below a line

>, ≥ - shaded region above a line

y = 3x

for x = 0 → y = 3(0) = 0 → (0, 0)

for x = 2 → y = 3(2) = 6 → (2, 6)

y < 3x - dotted line, shaded region below the line

y = 5 - it's a horizontal line passes througth points (x, 5) <em>/x - any real number/</em>

y < 5 - dotted line, shaded region below the line

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official approval given by an organisation when something / somebody achieves a certain standard

hope it helps you ✌

6 0
3 years ago
Which equation(s) represents a proportional relationship? A) y = 5+x B) y = 4x C) y = 7x? D) y = 2-x
andreyandreev [35.5K]

Answer:

B & C

Step-by-step explanation:

A proportional relationship has a proportionality constant (constant rate of change) and and must cross through the origin (or begin at (0,0). This means it's y-intercept is 0. Each of the options is a linear function. All of the functions have a constant rate of change. Only one as b=0 or 0 as the y-intercept.

B) y=4x has a constant of 4 and passes through the origin.

C) y=7x has a constant of 7 and passes through the origin.


6 0
3 years ago
A demographer wants to measure life expectancy in countries 1 and 2. Let μ1 and μ2 denote the mean life expectancy in countries
Art [367]

Answer:

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

Null hypothesis: \mu_1 \leq \mu_2 -10

Alternative hypothesis:\mu_1 > \mu_2 -10

Or equivalently:

Null hypothesis: \mu_1 - \mu_2 \leq 10

Alternative hypothesis:\mu_1 - \mu_2 >10

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

Null hypothesis: \mu_1 \leq \mu_2 -10

Alternative hypothesis:\mu_1 > \mu_2 -10

Or equivalently:

Null hypothesis: \mu_1 - \mu_2 \leq 10

Alternative hypothesis:\mu_1 - \mu_2 >10

7 0
3 years ago
Y = 3x - 24<br> 5x - y = 8
Anuta_ua [19.1K]
What is your question
4 0
4 years ago
Simplify the expression. c–6 • 2c7
Anna11 [10]

The answer is 2c.

Applying the Law of Exponents,

  • c⁻⁶ x 2c⁷
  • 2c⁷⁻⁶
  • 2c
7 0
2 years ago
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