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2 years ago

Resuelve el siguiente ejercicio:

Mathematics

1 answer:

exis [7]2 years ago

5 0

Answer:

Cuanto dinero voy a pagar 24 $

Cuanto recibiré de cambio 76 $

Step-by-step explanation:

Mis compras son:

1 lápiz 3,50 $

2 plumas 7,90 $

1Libreta 12,60 $

Lo que quiere decir que compre:

3,50 + 7,90 + 12,60 = 24 $

Si cancelo mis compras con un billete de 100 $ me tienen que dar vuelto por:

100 $ - 24 $ = 76 $

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What is equation for the line that is perpendicular to y-3=-4(x+2) and passes through the point (-5,7)

jekas [21]

Answer:

y-7=1/4(x+5)

Step-by-step explanation:

y-3=-4(x+2)

y=-4x-8+3

y=-4x-5

-----------

y-y1=m(x-x1)

y-7=m(x-(-5))

y-7=m(x+5)

perpendicular means negative reciprocal of the slope,

so the slope will be 1/4

y-7=1/4(x+5)

4 0

3 years ago

a) find center of mass of a solid of constant density bounded below by the paraboloid z=x^2+y^2 and above by the plane z=4.(b) F

slava [35]

Answer: x-bar = y-bar = 0 whereas z-bar = 8/3

M= (c^2)/8 which is intern equal to 2 $\sqrt{2}$

Step-by-step explanation:

Find the area, by setting the limits as

= $4\cdot \int _0^{\frac{\pi }{2}}\int _0^2\int _{r^2}^4\:rdzdrd\theta$

$=4\cdot \int _0^{\frac{\pi }{2}}\int _0^2r\cdot \:4-r^3drd\theta$

$=4\cdot \int _0^{\frac{\pi }{2}}4d\theta$

$=8\pi$

Therefore;

Mxy= $\int _0^{2\pi }\int _0^2\int _{r^2}^4\:zrdzdrd\theta$

z-bar = 8/3

M= 8 $\pi$ dividing it into two volume gives us = 4 $\pi$

means $4\pi =\int _0^{2\pi }\int _0^{\sqrt{c}}\int _r^c\:rdzdrd\theta$

$4\pi =\left(\pi c^2-2\pi \frac{c^{\frac{3}{2}}}{3}\right)$

c=2 $\sqrt{2}$

5 0

3 years ago

60 is 5 times as great as k

jeka57 [31]

60=5k is the answer for your question

7 0

2 years ago

On a test Juan got 85% or 119 of the items correct. How many items were on the test

Arada [10]

Base = (Percentage/Rate)

B = 119/0.85 = 140

There were 140 items on the test.

6 0

3 years ago

Read 2 more answers

What is the median?

My name is Ann [436]

Answer:

767

Step-by-step explanation:

8 0

2 years ago