1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MAVERICK [17]
3 years ago
5

In 1940​, a certain​ country's population was 79,042,573 and its area was 2,919,166 square miles. In 2000​, the​ country's popul

ation was 283,891,555 and its area was 3,678,844 square miles. Compute the population densities of both years.
Mathematics
1 answer:
Debora [2.8K]3 years ago
3 0

Answer:

Step-by-step explanation:

You might be interested in
Can some one help me with 1,2, and 4
Alina [70]

Answer:

I got 76 for #1 your welcome

4 0
3 years ago
Read 2 more answers
Is 5.35 a repeating decimal
Naya [18.7K]

If its just 5.35 then no. But if its a number like pie then yes.

4 0
3 years ago
Read 2 more answers
Find the optimal solution for the following problem. (Round your answers to 3 decimal places.)
Sphinxa [80]

Answer:

x=2.125

y=0

C=19.125

Step-by-step explanation:

To solve this problem we can use a graphical method, we start first noticing the restrictions x\geq 0 and  y\geq 0, which restricts the solution to be in the positive quadrant. Then we plot the first restriction 8x+10y\leq 17 shown in purple, then we can plot the second one 11x+12y\leq 25 shown in the second plot in green.

The intersection of all three restrictions is plotted in white on the third plot. The intersection points are also marked.

So restrictions intersect on (0,0), (0,1.7) and (2.215,0). Replacing these coordinates on the objective function we get C=0, C=11.9, and C=19.125 respectively. So The function is maximized at (2.215,0) with C=19.125.

3 0
3 years ago
1. S(–4, –4), P(4, –2), A(6, 6) and Z(–2, 4) a) Apply the distance formula for each side to determine whether SPAZ is equilatera
Aleksandr [31]

Answer:

a) SPAZ is equilateral.

b) Diagonals SA and PZ are perpendicular to each other.

c) Diagonals SA and PZ bisect each other.

Step-by-step explanation:

At first we form the triangle with the help of a graphing tool and whose result is attached below. It seems to be a paralellogram.

a) If figure is equilateral, then SP = PA = AZ = ZS:

SP = \sqrt{[4-(-4)]^{2}+[(-2)-(-4)]^{2}}

SP \approx 8.246

PA = \sqrt{(6-4)^{2}+[6-(-2)]^{2}}

PA \approx  8.246

AZ =\sqrt{(-2-6)^{2}+(4-6)^{2}}

AZ \approx 8.246

ZS = \sqrt{[-4-(-2)]^{2}+(-4-4)^{2}}

ZS \approx 8.246

Therefore, SPAZ is equilateral.

b) We use the slope formula to determine the inclination of diagonals SA and PZ:

m_{SA} = \frac{6-(-4)}{6-(-4)}

m_{SA} = 1

m_{PZ} = \frac{4-(-2)}{-2-4}

m_{PZ} = -1

Since m_{SA}\cdot m_{PZ} = -1, diagonals SA and PZ are perpendicular to each other.

c) The diagonals bisect each other if and only if both have the same midpoint. Now we proceed to determine the midpoints of each diagonal:

M_{SA} = \frac{1}{2}\cdot S(x,y) + \frac{1}{2}\cdot A(x,y)

M_{SA} = \frac{1}{2}\cdot (-4,-4)+\frac{1}{2}\cdot (6,6)

M_{SA} = (-2,-2)+(3,3)

M_{SA} = (1,1)

M_{PZ} = \frac{1}{2}\cdot P(x,y) + \frac{1}{2}\cdot Z(x,y)

M_{PZ} = \frac{1}{2}\cdot (4,-2)+\frac{1}{2}\cdot (-2,4)

M_{PZ} = (2,-1)+(-1,2)

M_{PZ} = (1,1)

Then, the diagonals SA and PZ bisect each other.

8 0
2 years ago
Find the solutions to x² = 12.
Novosadov [1.4K]

Answer:

x = \pm 2\sqrt3

Step-by-step explanation:

Hello!

Let's use the square root property to solve this question

Solve:

  • x^2 = 12
  • \sqrt{x^2} = \sqrt{12}
  • x = \pm\sqrt{12}
  • x = \pm \sqrt{4 * 3}
  • x = \pm 2\sqrt3

The answer is option A: x = ±2√3

3 0
2 years ago
Other questions:
  • The measure of an angle formed by intersecting chords is blank the sum of the measures of the intercepted arcs.
    13·2 answers
  • What are the solutions to the equation? x^3 - 8x^2 - x + 8 =0
    13·2 answers
  • Perform the indicated operation.<br><br> 15 - 12<br><br> 3<br> -3<br> -27<br> 27
    9·1 answer
  • The sum of two numbers is 12 and their difference is 4. What are the two<br> numbers?
    11·2 answers
  • Distance 22
    14·1 answer
  • Find the total amount in the compound interest account 1000 is compounded annually at a rate of 11% for 7 years round to the nea
    12·1 answer
  • Answer this please, best answer gets brainliest!
    11·1 answer
  • 5.82-1.76 rounded to the nearest whole number
    8·1 answer
  • Please help me with this thank you !!
    15·2 answers
  • A triangle flower bed has a perimeter of 15cm the drawing has a scale of 1:200. What is the perimeter of the actual flower bed
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!