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elixir [45]
2 years ago
9

X

Mathematics
1 answer:
Travka [436]2 years ago
6 0

Answer:

Are we human, or are we dancer

Step-by-step explanation: this is an answer your teacher would love trust me ;)

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I have nooooo clue, please help
Aleksandr-060686 [28]

Answer:

case a) x^{2}=3y ----> open up

case b) x^{2}=-10y ----> open down

case c) y^{2}=-2x ----> open left

case d) y^{2}=6x ----> open right

Step-by-step explanation:

we know that

1) The general equation of a vertical parabola is equal to

y=a(x-h)^{2}+k

where

a is a coefficient

(h,k) is the vertex

If a>0 ----> the parabola open upward and the vertex is a minimum

If a<0 ----> the parabola open downward and the vertex is a maximum

2) The general equation of a horizontal parabola is equal to

x=a(y-k)^{2}+h

where

a is a coefficient

(h,k) is the vertex

If a>0 ----> the parabola open to the right

If a<0 ----> the parabola open to the left

Verify each case

case a) we have

x^{2}=3y

so

y=(1/3)x^{2}

a=(1/3)

so

a>0

therefore

The parabola open up

case b) we have

x^{2}=-10y

so

y=-(1/10)x^{2}

a=-(1/10)

a

therefore

The parabola open down

case c) we have

y^{2}=-2x

so

x=-(1/2)y^{2}

a=-(1/2)

a

therefore

The parabola open to the left

case d) we have

y^{2}=6x

so

x=(1/6)y^{2}

a=(1/6)

a>0

therefore

The parabola open to the right

3 0
2 years ago
(7y – 20)<br> (5х – 38)<br> (3х – 4)<br> -<br> m
egoroff_w [7]

Answer:

um

Step-by-step explanation:

8 0
2 years ago
How much times does 42 go into820
kirill115 [55]
You divide 820 by 42 and the answer comes out to be 344.4 it has a decimal because it doesn't divide equally
5 0
3 years ago
Read 2 more answers
Please helppp meee I need it done noww
bearhunter [10]

Answer:

7/2

Step-by-step explanation:

3 wholes is equal to 6 halves plus a half equals 7 halves

6 0
3 years ago
If f(x) = x2 − 2x + 9 and g(x) = 8 − x, what is (f o g)(−4)?
erastovalidia [21]
I hope this helps you

3 0
2 years ago
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