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muminat
3 years ago
5

Which of the following has no solution? 5x−10=x+20 2(6+x)=14+2x 0x+5=3(5x+7) 2(4+x)=8+2x

Mathematics
1 answer:
ser-zykov [4K]3 years ago
6 0

Answer:

2(6+x)=14+2x

Step-by-step explanation:

There are no solutions

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Each digit 8 in the number 8.888 has a different value placed on its place in the place-value chart. Each 8 is multiplied by its
stich3 [128]

Answer:

The value of every digit in a decimal figure is given by its position in that figure.

Step-by-step explanation:

<em>The Rule:</em>

The value of every digit in a decimal figure is given by its position in that figure.

For the figure 8.888, from left to right,

The first 8 is in units

The second 8 is in tenth (this means 8/10 = 0.8)

The third 8 is in hundreth (this means 8/100 = 0.08)

The fourth 8 is in thousandth (this means 8/1000 = 0.008)

The sum of the place values of the digits after the decimal point = 0.888

when the unit 8 is added, you then get 8.888

6 0
3 years ago
Solve with cramer's rule x+2y+3z=11, 2x+y+2z=10, 3x+2y+z=9
nalin [4]

Answer:

x = 2 , y = 0 , z = 3

Step-by-step explanation:

Cramer's rule is a rule through which we can find the solution of linear equation.

we have the three linear equations as

x+2y+3z=11

2x+y+2z=10

3x+2y+z=9

AX=B  

A: coefficient matrix

X= unknown vectors(x,y,z)

D = values of the linear equation (11 , 10 , 9)

now we find the determinant of the given linear equation

determinant of the matrix will be

A = \left[\begin{array}{ccc}1&2&3\\2&1&2\\3&2&1\end{array}\right]  = 1(1-4) - 2(2-6) + 3(4 - 3)

                    = 1(-3) - 2(-4) + 3(1)

                    = -3+8+3 = 8

also D\neq 0

so the determinant is Non zero we can apply Cramer's rule

we will be replacing the first column of the coefficient matrix A with the values of D

by replacing the first column we will get the value of the variable 'x'

Dx =  \left[\begin{array}{ccc}11&2&3\\10&1&2\\9&2&1\end{array}\right]   = 11(1-4) -2(10-18) + 3(20-9) = -33+16+33 = 16

x = \frac{Dx}{D}  = \frac{16}{8} = 2

similarly

Dy = \left[\begin{array}{ccc}1&11&3\\2&10&2\\3&9&1\end{array}\right] = 1(10-18) -11(2-6) + 3(18 -30) = -8 +44 -36 = 0

y = \frac{Dy}{D} = 0

Dz= \left[\begin{array}{ccc}1&2&11\\2&1&10\\3&2&9\end{array}\right] = 1(9 - 20) -2(18 - 30) + 11(4 -3) = -11 +24 +11 = 24

z = \frac{Dz}{D} = \frac{24}{8} = 3

so we have the solution as

x = 2 , y = 0 , z = 3

Therefore the solution for the given linear equations is (2,0,3).

3 0
3 years ago
Rewrite a savings account balance is -$15.00 as a positive value
kykrilka [37]

Answer:

$15.00

Step-by-step explanation:

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2) The product of 8 and a number is 104.<br> What is the number?<br> Write the equation
Vlad [161]

Answer:

The equation is 8 x 13 = 104

4 0
2 years ago
Triangle ABC is translated on the coordinate plane below to create triangle A'B'C':
Elena L [17]
<span>the answer for this case is
 since the translation is
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 for each ordered pair
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8 0
3 years ago
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