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deff fn [24]
3 years ago
9

Math help meeeeeeeeee

Mathematics
1 answer:
Advocard [28]3 years ago
5 0

Answer: it will be 3 feet high

Step-by-step explanation: what you do is read what it is asking you again and the answer is 3

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Solve for x. <br><br> -3x + 4 = -8
Sav [38]
-3x+4=-8
-3x=-8-4
-3x=-12
X=-12 divided by -3
X=4
7 0
4 years ago
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Si a los lados de un cuadrado se le aumenta en 3 y 5 m respectivamente la superficie del nuevo rectangulo es 440m .Encontrar el
Ivahew [28]

Answer:

El lado del cuadrado inicial es 17 m.

Step-by-step explanation:

El área de un rectángulo se calcula a partir de los dos lados diferentes. Siendo a y b el valor de ambos lados, el área de la figura es el producto de los dos lados contiguos del rectángulo.

A los lados de un cuadrado se le aumenta en 3 y 5 m respectivamente la superficie del nuevo rectángulo es 440 m². Siendo x el lado del cuadrado inicial, entonces el área del rectángulo se puede expresar como:

(x+3)*(x+5)= 440 m²

Resolviendo:

x*x + 5*x + 3*X + 3*5= 440

x² + 8*x + 15=440

x² + 8*x + 15 -440= 0

x² + 8*x -425= 0

Una función cuadrática de la forma a*x² + b*x + c= 0 se puede resolver mediante la expresión:

\frac{-b+-\sqrt{b^{2}-4*a*c } }{2*a}

En este caso, a=1, b=8 y c=425. Reemplazando:

\frac{-8+-\sqrt{8^{2}-4*1*(-425) } }{2*1}

Resolviendo:

\frac{-8+\sqrt{8^{2}-4*1*(-425) } }{2*1}= \frac{-8+\sqrt{64+1700} }{2*1}= \frac{-8+\sqrt{1764 } }{2}= \frac{-8+42 }{2}= \frac{34}{2} = 17

y

\frac{-8-\sqrt{8^{2}-4*1*(-425) } }{2*1}= \frac{-8-\sqrt{64+1700} }{2*1}= \frac{-8-\sqrt{1764 } }{2}= \frac{-8-42 }{2}= \frac{-50}{2} = -25

Como las longitudes no pueden ser negativas, <u><em>el lado del cuadrado inicial es 17 m.</em></u>

3 0
3 years ago
For the sequence below, identify the type of sequence and its important features:
In-s [12.5K]

Answer:

neither

Step-by-step explanation:

the sequence doesn't go up by a specific amount each time nor does it gets multiplied by a single number each time. there is no pattern

4 0
4 years ago
Read 2 more answers
(x - 1) (x – 12) = 0<br> What’s the value of X?
Over [174]

Answer:

either 1

or 12

(sorrryy if its not correct:( )

Step-by-step explanation:

7 0
3 years ago
12) Solve for x using the quadratic formula. Express your answer in simplest form.
lidiya [134]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
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