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Ipatiy [6.2K]
3 years ago
5

If the coordinates of a point p(m-3 , -6) = p(-7 , -6), then find the value of m .​

Mathematics
1 answer:
Ulleksa [173]3 years ago
6 0

Answer:

woah what an coincidence

Step-by-step explanation:

i have this question on my exam lamoa

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Rajan needs 1 liter of 15% hydrochloric acid solution for an experiment. He checks his storage cabinet, but he only has a 5-lite
Delvig [45]

Answer:

  1. <em>0.75</em><em> liters of 5% hydrochloric acid solution </em>
  2. <em>0.25</em><em> liters of 45% hydrochloric acid solution.</em>

Step-by-step explanation:

Let us assume that, x liters of the 5% hydrochloric acid and y liters of the 45% hydrochloric acid solutions are combined.

As Rajan need total of 1 liter of solution, so

x+y=1

i.e x=1-y --------------------1

As Rajan needs 5% hydrochloric acid and 45% hydrochloric acid to make a 1 liter batch of 15% hydrochloric acid, hence acid content of the mixture of two acids will be same as of the final one, so

0.05x+0.45y=1\times 0.15

i.e 5x+45y=15 -------------2

Putting value of x from equation 1 in equation 2,

\Rightarrow 5(1-y)+45y=15

\Rightarrow 5-5y+45y=15

\Rightarrow 5+40y=15

\Rightarrow 40y=15-5=10

\Rightarrow y=0.25

Putting the value of y in equation 1,

x=1-0.25=0.75

Therefore, Rajan must use 0.75 liters of 5% hydrochloric acid solution and 0.25 liters  of 45% hydrochloric acid solution.

4 0
3 years ago
Use the figure to find x.
velikii [3]

Answer:

Step-by-step explanation:

The sides of a 30-60-90 triangle are in the ratio 1:√3:2

The side opposite the 30° angle is (12√6)÷2 = 6/√6.

The side opposite the 60° angle is √3×6/√6 = 6/√2 =3√2.

The sides of a 45-45-90 triangle are in the ratio 1:1:√2

The hypotenuse is 3√2, so the side opposite the 45° angle is 3.

x = 3

3 0
3 years ago
The question is attached in the picture
Deffense [45]

Answer:

<h2><u><em>1875</em></u></h2>

Step-by-step explanation:

25*75

 175  

  125

1875

7 0
2 years ago
14,560,000 in standard form ?
Aleks [24]

Answer:

  In the US: 14,560,000

  In Britain: 1.456×10⁷

Step-by-step explanation:

On the European side of the Atlantic, "standard form" for a number is the form called "scientifc notation" on the American side of the Atlantic.

6 0
2 years ago
The diagonal of a soccer field is 150 feet. The length is 120 feet. What is the width?
ratelena [41]

Answer: 90 feet wide

Step-by-step explanation:

5 0
3 years ago
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