3 years ago

Which statement illustrates the identity property of multiplication?

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

3 0

The 4th selection is appropriate.
3x · 1 = 3x . . . . . . . . multiplication by 1 does not change the value

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Explain the parts of an angle

Ann [662]

Answer:

line segments are the lines

rays are line segments that have one vertex

a vertex is the endpoint of a line(usually represented by a dot)

Step-by-step explanation:

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3 years ago

Factorise x^2+6x-7 ?? Help please

Ber [7]

$x^2+6x-7=\\
x^2-x+7x-7=\\
x(x-1)+7(x-1)=\\
(x+7)(x-1)$

7 0

3 years ago

Find the mass of the triangle with vertices (1; 0; 0), (0; 2; 0), (0; 1; 1) if the density function is given by (x; y; z)

Luda [366]

Answer:

$=\frac{17}{3}$

Step-by-step explanation:

Density of a function is $\rho(x,y)=x^{2} +y^{2}$

I have drawn the right angle triangle for visualization

equation for the line passing through (1,0) and (0,4) is

$\frac{y}{4} =\frac{x-1}{-1}$

$y=4-4x$

= $\int_{0}^1\int_{0}^{4-4x} (x^{2}+y^{2})dydx$

= $\int_{0}^{1}(x^{2}+\frac{y^{3} }{3})dx$

= $\int_{0}^{1}(x^{2}(4-4x)+\frac{1}{3}(4-4x)^{3} )dx$

= $\int_{0}^{1}(\frac{-76}{3}x^{3} +68x^{2}-64x^{}+\frac{64}{3} )dx$

= $=(\frac{-76}{3} \frac{x^{4} }{4})+\frac{68}{3}x^{3}-32x^{2}+\frac{64}{3}x^{})$

$=\frac{17}{3}$

3 0

3 years ago

Can anyone help me with the rest of my ixl m.1 please and thank you

mina [271]

Answer:

u=54

Step-by-step explanation:

VX is middle line of triangle, so

VX=ZY/2.....(1)

We know that

Zy=u

Vx=u-27

Put that in (1) we have:

u-27=u/2

2u-54=u

2u-u=54

u=54

5 0

3 years ago

2/3 + (-1/3) = ?????

amm1812

Answer: (+) 1/3

Step-by-step explanation: 2/3 + -1/3 is basically subtracting 1/3 from 2/3 so, 2/3 - 1/3 = 1/3.

6 0

3 years ago

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