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3 years ago

Please help me i need help pls

Mathematics

1 answer:

OverLord2011 [107]3 years ago

6 0

Answer:

see explanation

Step-by-step explanation:

(b)

30n - 12 ( factor out the gcf 6 from each term )

= 6(5n - 2) ← in factored form

(c)

6x + 9y ( factor out the gcf 3 from each term )

= 3(2x + 3y) ← in factored form

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Find the equation of a parabola with a vertical axis and its vertex at the origin and passing through the point (-2, 3).

jonny [76]

Answer:

$y=\frac{3}{4}x^2$

Step-by-step explanation:

Hi there!

Because we're given the vertex of the parabola, we can determine its equation in vertex form:

$y=a(x-h)^2+k$ where the vertex is $(h,k)$

Plug in the vertex (0,0)

$y=a(x-0)^2+0\\y=a(x)^2\\y=a(x-0)^2+0\\y=ax^2$

Now, we must solve for a. Plug in the given point (-2,3) and solve for a:

$3=a(-2)^2\\3=4a\\\frac{3}{4} =a$

Therefore, the value of a is $\frac{3}{4}$ . Plug this back into $y=ax^2$ :

$y=\frac{3}{4}x^2$

I hope this helps!

5 0

3 years ago

Which whole number is equal to the fraction 42/6

DaniilM [7]

Answer:

Step-by-step explanation:

Think of 42/6 as a division question.

42 ÷ 6.

The answer to this equation is 7.

8 0

2 years ago

Someone help please!

UNO [17]

If we imagine it in our head, we can see that the width (base) is 2 and the height is 9
the area is 1/2bh or 1/2*2=9 square units
it is rotated around x axis
meaning we have a sideways cone that is 2 hight and radius is 9
Vcone=1/3(hpir^2)
h=2
r=9
V=(1/3)(2)(3.141592)(9^2)
V=(2/3)(3.141592)(81)
V=(54)(3.141592)
V=169.6459
round
V=169.6 cubic units

base is 2 units
height is 9 units
area is 9 square units
it's a cone (sideways)
it has a volume of 169.6 cubic units

3 0

3 years ago

Read 2 more answers

Please help me solve correct one gets Brainliest -6x+30

Finger [1]

Answer:

Factor −6x+30

−6x+30

=6(−x+5)

Step-by-step explanation:

That's all there is

6 0