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irina [24]
4 years ago
7

Find x3 − 2y2 − 3x3 + z4 if x = 3, y = 5, and z = −3.

Mathematics
1 answer:
Oksana_A [137]4 years ago
4 0
3^3-2(5)^2-3(3)^3+-3(4)
27-50-81+-12
-116
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Please someone help me out. I beggggg
bezimeni [28]

Answer:

1.  144  2. 16 3. 1   4. 3x-6  

Step-by-step explanation:

So think of this as a function in a function.  So you work from the inside to the outside.  So for problem 1, we start with f(4)) [you read it "f of 4"] so what is the solution when x = 4, since f(x) means the function of x so f(4) means 'the function of 4' inside f(x).  

Since f(x) = 3x then f(4) = 3(4) [notice how you substitute the 4 everywhere you see a letter x]

so f(4) = 12, now you work the next part h(f(4)) since f(4)=12 then h(12)

So take the h(x) function which is h(x) = x^{2} then h(12) = 12^{2} so h(12) = 144

4 0
3 years ago
a rectangle has an area of 1/6 squar centimeters and a length of 1.5 centimeters what is the width and the perimeter
Alex73 [517]
<span>

(1/6)/ 1.5 = 
(1/6)/(15/10)=
1/6*10/15=10/90=1/9 width</span>
3 0
3 years ago
Si mi hermano gana 589 pesos diarios si ha trabajado 15 días de este mes ¿cuánto dinero ha ganado?
weeeeeb [17]

Mi hermano ha ganado un dinero <em>devengado</em> de 8835 pesos en 15 días.

En esta pregunta debemos determinar el dinero <em>devengado</em> por un período de 15 días a partir de una tasa diaria <em>constante</em>. Esa cantidad es igual al producto de la tasa diaria <em>constante</em>, en pesos por día, y el número de días <em>trabajados</em>, en días:

x = 589\,\frac{\$}{dia}\times 15\,dias

x = 8835\,\$

Mi hermano ha ganado un dinero <em>devengado</em> de 8835 pesos en 15 días.

Para aprender más sobre álgebra y aritmética, invitamos cordialmente a ver esta pregunta: brainly.com/question/953809

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18 months or 4 times faster 

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4 years ago
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(-1.5,2.5) is the point where A is on the coordinate plane.
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