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2 years ago

Which of the following distinctions does Russia enjoy?

Mathematics

1 answer:

kap26 [50]2 years ago

3 0

Answer:

A distinctions does Russia enjoy is explained below in details.

Step-by-step explanation:

About 11 percent of Russia is tundra, marshy plain, a treeless The tundra is Russia's northernmost zone.
Russia is the world's largest nation by landmass, It comprises nine separate time zones and shares land boundaries with 14 neighboring nations.
Russia a federative, democratic, law-based country with a republican model of government. State authority is distributed among the legislative, executive, and judicial divisions.

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Evaluate 2a - b for a = 2 and b = 3.<br> 1<br> 4<br> 7<br> 19

Goryan [66]

Lets plug in the numbers

2 times 2-3

4-3

1

your answer is 1

8 0

3 years ago

Read 2 more answers

Use the quadratic function f(x) = 2x^2 + 4x - 15. Find any x intercepts.

8_murik_8 [283]

So for this function we will be using the quadratic formula, which is $x=\frac{-b+\sqrt{b^2-4ac}}{2a},\frac{-b-\sqrt{b^2-4ac}}{2a}$ , to solve. a = x^2 coefficient, b = x coefficient, and c = constant. Using our equation, we can solve for the zeros (x-intercepts) as such:

$x=\frac{-4+\sqrt{4^2-4*2*(-15)}}{2*2},\frac{-4-\sqrt{4^2-4*2*(-15)}}{2*2}\\ \\ x=\frac{-4+\sqrt{16-(-120)}}{4},\frac{-4-\sqrt{16-(-120)}}{4}\\ \\ x=\frac{-4+\sqrt{136}}{4},\frac{-4-\sqrt{136}}{4}\\ \\ x=1.92,-3.92$

In short, your x-intercepts (rounded to the hundredths) are (1.92,0) and (-3.92,0).

6 0

3 years ago

so yes i'm re-posting this same question since last time no one answered it for me so this time somebody please help me out :(

alexandr402 [8]

Answer:

its 30

Step-by-step explanation:

if you see the x is in the middle of the line meaning its 30

5 0

3 years ago

Read 2 more answers

A medium sized apple has 70 calories. This is 10 calories less than 1\4 of the calories in an old westie chocolate bar.How many

blondinia [14]

Answer:

$\boxed{320}$

Step-by-step explanation:

Let x = calories in chocolate bar

¼x = ¼ of the calories

¼x – 10 = 10 calories less than half the calories

¼x – 10 = 70

¼x = 80

x = 320

There are $\boxed{320}$ calories in the chocolate bar.

5 0

3 years ago

When a gas is kept at a constant temperature and pressure on it changes, its volume changes according to the following formula,

astra-53 [7]

Answer: Approximately 1.9 atm

============================================

Work Shown:

$P_1*V_1 = P_2*V_2 \ \text{ ... Boyle's Law}\\\\4.5*1.5 = P_2*3.5\\\\6.75 = P_2*3.5\\\\P_2*3.5 = 6.75\\\\P_2 = \frac{6.75}{3.5}\\\\P_2 \approx 1.92857142857142\\\\P_2 \approx 1.9\\\\$

If the volume is 3.5 liters, then the pressure is approximately 1.9 atm.

Note the increase in volume leads to the reduction of pressure, and vice versa. The two variables have an inverse relationship.

-----------

As a check,

$P_1*V_1 = P_2*V_2\\\\4.5*1.5 \approx 1.9*3.5\\\\6.75 \approx 6.65\\\\$

We don't get the exact thing on both sides, but the two sides are close enough. We have rounding error due to P2 being not exact.

A more accurate check could be

$P_1*V_1 = P_2*V_2\\\\4.5*1.5 \approx 1.92857*3.5\\\\6.75 \approx 6.749995\\\\$

which has the two sides much closer to one another. This helps us verify the answer.

5 0

3 years ago