3 years ago

This answer is wrong the right answer would be (negative one over four).

Mathematics

1 answer:

Alenkinab [10]3 years ago

4 0

-1/4 . wait whats the question

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About 1.15 million people live in a circular region with a population density of about 18,075 people per square kilometer. Find

Tanzania [10]

Step 1

<u>Find the total area</u>

Total area=(1,150,000/18,075)=63.62 square kilometer

The area of a circle is equal to

$A=\pi * r^{2} \\ 63.62= \pi * r^{2}\\r=\sqrt{(63.62/\pi)} \\r=4.5\ km$

therefore

the answer is

$4.5\ km$

7 0

3 years ago

7x + 4y = 2<br> 7x + 2y = 8

Mariana [72]

Answer:

x = 2 , y = − 3

Step-by-step explanation

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form: ( 2 , − 3 )

Equation Form: x = 2 , y = − 3

3 0

3 years ago

A triangle has an area of 38.4 cm2. The

lisov135 [29]

Answer:

6cm

Step-by-step explanation:

$A = \frac{h_b b}{2}$

$38.4 = \frac{12.8_b b}{2}$

$b = 2\frac{A}{h_b}$

$b = 2\frac{38.4}{12.8}$ = 6

8 0

3 years ago

Need help solving this puzzle

Dovator [93]

Answer:

what exactly is it asking the angle like 90 degrees obtuse acute?

Step-by-step explanation:

4 0

3 years ago

Write the equation of a line in slope-intercept form that has a slope of -1/4x and a y-intercept of 5

lesya692 [45]

Answer:

Step-by-step explanation:

Slope = m = -1/4

y-intercept = b = 5

Slope intercept form = y = mx +b

$y =\dfrac{-1}{4}x+5$

4 0

3 years ago