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Yuliya22 [10]
3 years ago
10

How can i solve 8(3a+6)=9(2a-4)

Mathematics
1 answer:
jeka57 [31]3 years ago
8 0

Answer:

-14

Step-by-step explanation:

1.  Carry out the indicated multiplication, obtaining 24a + 48 = 18a - 36.

2.  Combine like terms:  6a = -84.

3.  Divide both sides by 6 to isolate a:  a = -84/6 = -14


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Generate an equivalent algebraic expression by combining like terms.<br><br> 2x-6y+2x^2-21-4y+4x-x^2
Vlad1618 [11]
I’m pretty sure it’s

6x-10y+x^2-21




Unless I read it wrong then sorry
3 0
2 years ago
An object is thrown straight up from the top of a 100-foot platform at a velocity of 48 feet per second. The height h(t) of the
julsineya [31]

Answer:

  • The maximum height is 136 ft
  • The time it takes to achieve this height is 1.5 s.

Explanation:

<u>1. Function for the height (given):</u>

    h(t)=-16t^2+48t+100

<u />

<u>2. Type of function</u>

That is a quadatic function, whose graph is a parabola that opens downward.

The maximum of the function, i.e. the maximum height, is the vertex of the parabola.

The vertex of a parabola with the genral equation   y=ax^2+bx+c  is at the x-coordinate

                       x=-b/(2a)

<u>3. Time to achieve the maximum height</u>

Substitute b with 48 and a with - 16:

        t=-48/(2(-16))=48/32=3/2=1.5

Then, time when the object achieves the maximum height it 1.5s

<u />

<u>4. Maximum height:</u>

Replace t with 1.5 in the equation, to find the maximum height, h(1.5)

     h(1.5)=-16(1.5)^2+48(1.5)+100=136

Then, the maximum height is 136 ft

3 0
3 years ago
A coin weighs 5/6 ounces. Ann picked up 3 of these coins.
JulsSmile [24]
How I’d do it:
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The total weight she picked up is 2.5 ounces.
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zubka84 [21]

Answer: The Third option

Step-by-step explanation:

1/36a^4b^10

Hope this is right!

7 0
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Lostsunrise [7]

Answer:

the answer is 10:1

Step-by-step explanation:

i hope it helps

7 0
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