All categories

3 years ago

Hard qustion needing help

Mathematics

2 answers:

stepan [7]3 years ago

6 0

Answer:

they're the same picture

mojhsa [17]3 years ago

6 0

Can’t tell the difference

You might be interested in

Find the nth term of the AP -2 -5 -8....

timofeeve [1]

Answer:

an = -2 -3(n-1)

Step-by-step explanation:

an = a1+(n-1) d

a1 =-2

d = -5--2

d = -5+2

d=-3

we are decreasing by 3 each time

an = -2 + (n-1) * -3

an = -2 -3(n-1)

3 0

3 years ago

Which of the following is the equation of a circle with a radius of 10 cm and center at (–3, 6)?

vlabodo [156]

The equation of a circle is (x - h)² + (y - k)² = radius² where (h, k) is the ordered pair for the center.

(x - (- 3))² + (y - 6)² = 10²

(x + 3)² + (y - 6) = 100

5 0

4 years ago

Please help!

Doss [256]

Answer:

Why did you poke your eraser it did nothing to you

Step-by-step explanation:

6 0

4 years ago

The current, I, varies inversely to the resistance, R. If the current is 250 milliamperes when the resistance is 5 ohms, find th

Arturiano [62]

Answer:

c) 62.5 mA
c) 9 seconds

Step-by-step explanation:

1. resistance is multiplied by 20/5 = 4, so current is multiplied by 1/4.

(1/4)(250 mA) = 62.5 mA . . . . matches choice C

2. distance is multiplied by 144/16 = 9, so time is multiplied by √9 = 3. The time it takes to fall 9 times as far is ...

3 × 3 seconds = 9 seconds . . . . matches choice C

7 0

3 years ago

The population of wolves in a sanctuary has been growing by about 20 wolves a year. In 2012, there were 415 wolves in the sanctu

Masteriza [31]

Answer:

A: P = 20n +415

B: P = 20t + 375

C: Both equations agree, and in 2018 there will be about 535 wolves

D: The advantage of defining the input variable is that it helps simplify the calculation and makes it more intuitive.

Step-by-step explanation:

P = <u>Number of wolves</u>

n = <u>number of years since 2012</u>

<em>we know </em><em>in 2012</em><em> there were </em><u><em>415 wolves in the sanctuary</em></u><em>, and that the </em><em>sanctuary </em><em>has been </em><em>growing about </em><u><em>20</em></u><u><em> wolves </em></u><u><em>a year.</em></u>

we know this is correct because we are trying to create an equation that represents the number of wolves(p) throughout the years(n), so we are trying to figure out what P equals. We know that the sanctuary grows about <u>20</u> wolves a year, and n is the number of years since 2012. As well as obviously,<u> we add 415 to our equation because there is </u><u>already 415 wolves in the sanctuary.</u>

P = <u>Number of wolves</u>

t = <u>number of years since 2010</u>

x = <u>unknown variable(number of wolves in 2010)</u>

Here we are trying to identify what x is,<u> in 2012 there was 415, each year the number of wolves grew by 20.</u>

P = 40 - 415 = 375

<u>We now know there were 375 wolves in 2010</u>

<h3>Hence our equation is P = 20t + 375</h3>

<h3>C:</h3><h3>First let's plug in our first equation</h3>

P = 20n + 415

(To find n all we do is subtract 2018 and 2012, which equals 6.)

P = 20(6) + 415

(Solve)

P = 120 + 415

<em>Our first equation tells us that in 2018 there will be 535 wolves.</em>

<h3>Plug in our second equation</h3>

P = 20t + 375

(To find t all we do the same thing we did last time except now we subtract 2018 from 2010, which equals 8)

P = 20(8) + 375

P = 160 + 375

<h2>Both our equations agree, and in 2018 there will be 535 wolves.</h2>

The advantage of defining the input variable is that it helps simplify the calculation and makes it more intuitive.

7 0

2 years ago