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zepelin [54]
3 years ago
8

On a coordinate plane, a piecewise function has 2 lines. The first line has a closed circle at (negative 2, negative 2) and then

goes up through (negative 4, 2) with an arrow instead of an endpoint. The second line has an open circle at (2, 1) and then goes up through (5, 4) with an arrow instead of an endpoint.
Which values are within the domain of the function? Check all that apply.

x = –6
x = –4
x = –2
x = 0
x = 2
x = 4
Mathematics
1 answer:
telo118 [61]3 years ago
4 0

Answer:

x=-6

x=-4

x=-2

x=4

Step-by-step explanation:

just did the test on e2020 and this was the answer!

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Is anyone really good at math?
Gre4nikov [31]

Answer: 12 cm

Step-by-step explanation:

\mathtt{Using\ the \ pythagorean \ theorem: \\}

a^2+b^2=c^2, \\\ we\ can\ plug\ in\ values\ for\ a,\ b,\ and\ c

L=a\ and\ M=b\ and\ N=c

Therefore,

L^2+35^2=37^2\\L^2+1225=1369\\L^2=144\\\sqrt{L^2} =\sqrt{144} \\L=\pm12\\Taking\ only\ the\ positive\ answer,\ we\ get:\\\large\boxed{L = 12cm}

7 0
2 years ago
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Error Analysis The diameter of the circle is 18 m. Eugene incorrectly says that the circumference
frutty [35]

Answer:56.52m, Eugene used a wrong formula

Step-by-step explanation:

diameter=18m

π=3.14

Circumference of circle=π x diameter

Circumference of circle=3.14 x 18

Circumference of circle=56.52m

Eugene used a wrong formula

Circumference of circle=2 x π x diameter

instead of

Circumference of circle=π x diameter

7 0
3 years ago
Find the standard form of the equation of the parabola with a focus at (0, -3) and a directrix at y = 3. (5 points)
OLEGan [10]

Answer:

From given option ,  the equation of parabola is                                            y = negative x² divided by 12

Step-by-step explanation:

Given as for parabola :

The focus is at (0 , - 3)

The directrix equation is y = 3

Now, equation of parabola parallel to y-axis is

( x - h )² = 4 p ( y - k )

where focus is ( h , k+p )   and  directrix equation is y = k - p

So, from equation

h  = 0     and   k + p = - 3

And y = k - p   i.e k - p = 3

Now solving  ( k + p ) + (  k - p ) = - 3 + 3

or, 2 k = 0  ∴ k = 0

Put the value of k , k + p = - 3

So, 0 + p = - 3    ∴ p = - 3

Now equation of parabola with h = 0  , k = 0  , p = - 3

( x - h )² = 4 p ( y - k )

I.e ( x - 0 )² = 4 × ( - 3 ) ( y - 0 )

Or, x² = - 12 y   is the equation of parabola

Hence  From given option ,  the equation of parabola is                                y = negative x² divided by 12       Answer

7 0
3 years ago
I hope you guys can help me​
Vikki [24]

Answer:

a) The value of n is 81.30.

b) The value of n is 81.

Step-by-step explanation:

a) The value of n is the ratio of the mass of the Earth to the mass of the Moon. That is:

n = \frac{5.972\times 10^{24}\,kg}{7.346\times 10^{22}\,kg}

n = 81.30

The value of n is 81.30.

b) If n is a integer, then the result must have only two significant figures. Given the result, we must approximate to the closest integer. That is:

n = 81

The value of n is 81.

7 0
3 years ago
PLSSS HELPP MEEEE<br> IM NOT SURE IF ITS STEP 4 OR 3
marissa [1.9K]

Answer:

wait huh whats ur question?

Step-by-step explanation:

8 0
3 years ago
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