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Reil [10]
3 years ago
9

Solve the following equation using the quadratic formula.

Mathematics
1 answer:
Mice21 [21]3 years ago
7 0
X is Equal to 3.5 :))
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Una avenida está siendo asfaltada por etapas. En la primera etapa se asfaltó la mitad; en la segunda, la quinta parte, y en la t
s344n2d4d5 [400]

Answer:

Sabemos que:

L es el largo de la avenida.

En la primer etapa se asfalto la mitad, L/2, entonces lo que queda por asfaltar es:

L - L/2 = L/2.

En la segunda etapa se asfalto la quinta parte, L/5, entonces lo que queda por asfaltar es:

L/2 - L/5 = 5*L/10 - 2*L/10 = (3/10)*L

En la tercer etapa se asfalto la cuarta parte del total, L/4, entonces lo que queda por asfaltar es:

(3/10)*L - L/4 = 12*L/40 - 10L/40 = (2/40)*L

Y sabemos que este ultimo pedazo que queda por asfaltar es de 200m:

(2/40)*L = 200m

L = 200m*(40/2) = 4,000m

7 0
3 years ago
Simplify this expression.
olchik [2.2K]

Answer:

(y^2+3y-28)/(4y^2-15y-4)

Step-by-step explanation:

(4y-1)(y-3)(2y+3)(y+3)(y+7)(y-3)/(2y+3)(y-4)(4y+1)(4y-1)(y-3)(y+3)

= (y+7)(y-3)/(y-4)(4y+1)

= (y^2+3y-28)/(4y^2-15y-4)

7 0
2 years ago
Read 2 more answers
The graph represents how much money Emma makes selling bracelets. The table shows how much Jack makes selling comic books. Which
Lilit [14]

Answer:

Bracelets are the same price as the comic books

Step-by-step explanation:

I just did the iready lol

6 0
3 years ago
How can you determine is a math question is an equation or an expression?
Tatiana [17]

An equation will have an answer at the end like an equal sign. (Ex; 20+20=40)

An expression will NOT have an answer. (Ex; 20+20)

5 0
3 years ago
Read 2 more answers
Solve.<br>6x2 + 7x – 20 = 0​
Oliga [24]

Answer:

(3x + 4)(2x - 5)

6x^{2}+7x-20=0<em>    =    (3x + 4)(2x - 5)</em>

Hope this helped! Have a great day!

3 0
3 years ago
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