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max2010maxim [7]
3 years ago
5

Please answer this question​

Mathematics
1 answer:
EleoNora [17]3 years ago
8 0

Step-by-step explanation:

a) \:  -  \frac{3}{7} a \: \:  \times   \:  -  \frac{21}{15} b

=  \frac{ 3}{5} ab \: (ans)

b) \: 3xy(5 {x}^{2}  {y}^{2}  - 4yz)

= 3xy \times 5 {x}^{2}  {y}^{2}  - 4yz \times 3xy

= 15 {x}^{3}  {y}^{3}  - 12x {y}^{2} z \: (ans)

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Which statement is true? the equation –3|2x 1.2| = –1 has no solution. the equation 3.5|6x – 2| = 3.5 has one solution. the equa
vampirchik [111]

The statement which is true for the provided reason is the equation 3.5|6x – 2| = 3.5 has one solution.

<h3>How to find one solution of equation?</h3>

If the equation is given a unique and single value of variable after solving then the equation is said one solution equation. Such equation gives exactly one solution.

The three types of solution of an equation are-

  • One solution-When the provides the singe value of the given variable, we get one or unique solution.
  • No solution-When the graph of equations is equal than it provides the no solution. When the value, does not equate for the expression, then the expression has no solution.
  • Infinite many solution-For the same line, the equation has the infinite many solutions.

The first equation given in the problem is,

-3|2x+ 1.2| = -1

This equation has one solution. This in not correct option.

The second equation given in the problem is,

3.5|6x - 2| = 3.5 \\|6x-2|=0\\6x=2\\x=\dfrac{2}{6}\\x=\dfrac{1}{3}

This equation has one solution. This in correct option.

Hence, the statement which is true for the provided reason is the equation 3.5|6x – 2| = 3.5 has one solution.

Learn more about the solution of the equation here;

brainly.com/question/21283540

7 0
2 years ago
PLZZZZ HELLPP  50 POINTS TO WHO CAN ANSWER CORRECTLY
finlep [7]
For this case we are going to assume that Nina wrote:
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 The expression is correct since we have:
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 food sales were down by $ 33.50, that means:
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 Therefore, today's sales were:
 3/4 (1440) + 295.25 + (-33.50).
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 Nina's expression is correct
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3 years ago
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Answer:

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Step-by-step explanation:

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Change equation into slope intercept form 4x+5y=20
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the slope intercept form would be y = 4 /5 x-4


5 0
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Will mark brainliest. Please help ASAP
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Answer:

1/4000

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