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3 years ago

There are approximately 3.6 million deaths per year in country A. Express this quantity as deaths per minute.

1 answer:

5 0

About 6 or 7 deaths per minutes because if you divided 3.6 million by the amount of minutes in a year (525,600) you get 6.84931506 on and on.

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If x varies inversely as the square of y and if x=3 when y=-1, what is the value of x when y =3

lyudmila [28]

Answer:

$x$ would be $(1/3)$ when $y = 3$ .

Step-by-step explanation:

The question states that $x$ varies "inversely" as $y^2$ . In other words, there is a non-zero number $a$ (a constant) such that:

$\displaystyle x = \frac{a}{y^2}$ .

The challenging part is to find the value of $a$ in this equation.

Given that $x = 3$ when $y = -1$ , replace the $x$ in this equation with $3$ and $y$ with $(-1)$ . This equation should still be valid:

$\displaystyle 3 = \frac{a}{(-1)^{2}}$ .

Solve for $a$ :

$a = 3 \times (-1)^2 = 3$ .

Hence, the relation between $x$ and $y$ becomes:

$\displaystyle x = \frac{3}{y^2}$ .

Find the value of $x$ when $y = 3$ by replacing the $y$ in this equation with $3$ .

$\displaystyle x = \frac{3}{3^2} = \frac{1}{3}$ .

In other words, the value of $x$ would be $\displaystyle \frac{1}{3}$ when $y = 3$ .

7 0

3 years ago

What is the equation for the line of symmetry in this figure?

givi [52]

Answer:

Step-by-step explanation:

The axis of symmetry for the figure is the y- axis

The y- axis has equation x = 0

6 0

3 years ago

Solve for x. Show your work. -1/2 x < -12

Sergio039 [100]

-1/2x < -12

Divide both sides by -1/2

Also because you are dividing by a negative number you need to reverse the inequality sign.

X > 24

4 0

3 years ago

A randomly generated list of numbers from 0 to 4 is being used to simulate

Temka [501]

Answer:

0.6 probability.

Step-by-step explanation:

Probability of an equally likely situation is measured by # of successes/total # of possibilities.

Thus, there are 3 different values of success(2,3,4)

On the other hand, there are 5 possible different values on the list as per the question(0,1,2,3,4).

Therefore, our probability is equal to 3/5 = 0.60 = 60%

3 0

2 years ago

What is the surface area?

Sindrei [870]

Answer:

cube rectemgular prism surface area calculator

6 0

4 years ago