3 years ago

Choose all the polygons

Mathematics

1 answer:

ra1l [238]3 years ago

8 0

Answer:

A, B, E, F

Step-by-step explanation:

A polygon is ANY shape formed with <u>only</u> straight lines.

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(gof)(x) = x2 + x + 1

Sever21 [200]

Answer:

$the \: answer \: is \: b$

Step-by-step explanation:

$(gof)x = {(x + 1)}^{2 } = {x}^{2} + 2x + 1$

8 0

3 years ago

Please help. I’ll mark you as brainliest if correct.

stiks02 [169]

Answer:

$4600

Step-by-step explanation:

$3000 to pay off the car + $1600 to repaint the kitchen = $4600 owed on the home equity line of credit

3 0

3 years ago

For which real numbers x and y is it true that x + y = x+y?

Alchen [17]

By the general application of cumulative property of addition :

x + y = y + x

For sure

6 0

4 years ago

Problem1 The behavior of a physical system can be described by the following first order differential equation: dy/dt=2y +t^2

daser333 [38]

Answer:

$y = \dfrac{t^3e^{2t}}{3}+Ce^{2t}$ .

Step-by-step explanation:

Using first order linear differential equation:

$\dfrac{\mathrm{d} y}{\mathrm{d} t} = 2y + t^2$

$\frac{\mathrm{d} y}{\mathrm{d} t} - 2y =t^2$

finding integrating factor:

I.F = $e^{\int -2dt}$

I.F = $e^{-2t}$

now,

$y = \dfrac{1}{IF}(\int t^2dt+ c )$

$y = \dfrac{1}{e^{-2t}}(\int t^2dt+ c )$

$y = \dfrac{t^3e^{2t}}{3}+Ce^{2t}$

hence the solution is

$y = \dfrac{t^3e^{2t}}{3}+Ce^{2t}$

8 0

4 years ago

Use the given information to write an equation of the circle.<br> center at (-7,-3), radius 2

Igoryamba

The equation of a circle is written as (x-h)^2 +(y-k)^2 = r^2

h and K are the center points of the circle and r is the radius.

replace the letters with the provided center and radius:

(x- (-7))^2 + (y- (-3))^2 = 2^2

Simplify:

(x+7)^2 + (y+3)^2 = 4

7 0

4 years ago