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3 years ago

Which of the following equations have no solutions?

Mathematics

2 answers:

elena-14-01-66 [18.8K]3 years ago

6 0

Answer:it’s actually -60x + 32 = -60x + 60

And

-60x +32 = -60x-32

Step-by-step explanation:

krok68 [10]3 years ago

4 0

Answer:

-60.X + 32 = 32.r – 60

Because we only have one equation for 2 unknowns.

Step-by-step explanation:

All the equations have solution for r but the one that has 2 unknowns (r and X).

That is because we only have one equation and 2 unknowns.

Then, we only can express one unknown in function of the other and have an indeterminate solution.

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Lunna [17]

Answer:

b=66

Step-by-step explanation:

80-14 is 66, therefore b=66

5 0

3 years ago

How do i solve this |6x-3|=7

Y_Kistochka [10]

Answer:

x=5\3,-2\3

Step-by-step explanation:

7 0

3 years ago

Some people took part in a game. The frequency shows information about their scores.

Marizza181 [45]

Answer:

The mean = 17.54

Step-by-step explanation:

Form a table as below;

<u>Interval Frequency{f} Midpoint of frequency{x} fx </u>

1-7 19 4 76

8-10 14 9 126

11-15 15 13 195

16-20 20 18 360

21-35 10 28 280

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Sum 91 1596

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The mean= 1596 / 91

The mean = 17.54

5 0

3 years ago

All rectangles are paralloelograms

Anni [7]

Answer:

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Step-by-step explanation:

8 0

3 years ago

If you are reading this please help!!!!

Soloha48 [4]

Given:

$1. -3 x^{2}\left(4 x^{3}-7\right)\\$2. $(6 x-5)(2 x+3)$\\3. $(3 x-1)\left(x^{2}+5 x-2\right)$$

To find:

The product of the polynomials.

Solution:

1. $-3 x^{2}\left(4 x^{3}-7\right)$ $=-3 x^{2}(4 x^{3}) -3 x^{2}(-7)$

Multiply the numerical coefficient and add the powers of x.

$=-12 x^{5}+21 x^{2}$

2. $(6 x-5)(2 x+3)=6 x(2 x+3)-5(2x+3)$

Multiply each term of first polynomial with each term of 2nd polynomial.

Multiply the numerical coefficient and add the powers of x.

$=12 x^2+18x-10 x-15$

$=12 x^2+8x-15$

3. $(3 x-1)\left(x^{2}+5 x-2\right)=3 x(x^{2}+5 x-2)-1(x^{2}+5 x-2)$

Multiply each term of first polynomial with each term of 2nd polynomial.

Multiply the numerical coefficient and add the powers of x.

$=3x^{3}+15 x^2-6x-x^{2}-5 x+2$

Add or subtract like terms together.

$=3x^{3}+14 x^2-11x+2$

The answer for multiplying polynomials:

$1. -12 x^{5}+21 x^{2}$

$2. \ 12 x^2+8x-15$

$3. \ 3x^{3}+14 x^2-11x+2$

3 0

3 years ago