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vovangra [49]
2 years ago
13

A) Al triple de un número le restamos 9 y se obtiene 30, ¿cuál es ese número?

Mathematics
1 answer:
Greeley [361]2 years ago
5 0
El numero es 13 porque 13x3= 39 y 39-9= 30.
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3 years ago
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kramer

Answer:

t = 2

Step-by-step explanation:

Notice that this expression for the projectile's path is that of a quadratic function with negative leading term. The graph of it therefore consists of a parabola with the branches pointing down (due to he negative leading coefficient). Therefore, the maximum of such parabola will reside at its vertex.

Recall that the formula for the position of the vertex in a general parabolic function of the form: y(x)=ax^2+bx+c, is given by the expression: x_{vertex}=-\frac{b}{2a}

In our case, the variable "x" is in fact "t", the leading coefficient (a) is -5, and the coefficient for the linear term (b) is 20.

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7 0
3 years ago
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Andreyy89
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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