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Luda [366]
3 years ago
12

What is 0.4 as a decimal

Mathematics
2 answers:
kirza4 [7]3 years ago
7 0

Answer: 0.40 and 40%

Montano1993 [528]3 years ago
4 0

Answer:

40%

Step-by-step explanation:

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A line passes through (0, –7) and has a slope of -2/3. What is the equation of the line in slope-intercept form
babunello [35]

Answer:

the required equation is y = ( -2/3 )x -7

Step-by-step explanation:

<u>Given</u><u> </u><u>:</u><u>-</u><u> </u>

<em> </em>

<em>the</em><em> line </em><em>passes </em><em>thr</em><em>ough</em><em> </em><em>the </em><em>point</em><em> ( </em><em>0</em><em> , -</em><em>7</em><em> </em><em>)</em>

<em>)and slope of the line is </em><em>(</em><em> </em><em>-</em><em>2</em><em>/</em><em>3</em><em> </em><em>)</em>

<em>• To form an equation when one point and it's slope is given , </em>

<em>• To form an equation when one point and it's slope is given , we use ;</em>

<em>• To form an equation when one point and it's slope is given , we use ;( y - y1 ) = m ( x - x1 )</em>

<em>• To form an equation when one point and it's slope is given , we use ;( y - y1 ) = m ( x - x1 )Where , x and y are variables</em>

<em>• To form an equation when one point and it's slope is given , we use ;( y - y1 ) = m ( x - x1 )Where , x and y are variablesand x1 and y1 are the points where the line meet ! </em>

<em>• To form an equation when one point and it's slope is given , we use ;( y - y1 ) = m ( x - x1 )Where , x and y are variablesand x1 and y1 are the points where the line meet ! and m is slope of the tangent !!</em>

<em>y1</em><em> </em><em>=</em><em> </em><em>-</em><em>7</em>

<em>x1</em><em> </em><em>=</em><em> </em><em>0</em>

<em>So, putting all the values in the equation we get ,</em>

<em>(y - ( - 7)) =  \frac{( -2 )}{3} (x - 0) \\  \\ y + 7 =  \frac{ - 2}{3} x \\  \\ 3y + 21 =  - 2x \\  \\ 3y =  - 2x - 21</em>

<em>3y =  - 21 - 2x \\  \\ y =   \frac{ - 2}{3} x -  \frac{21}{3  }  \\  \\ y =  \frac{ - 2}{3} x - 7</em>

<em>• Slope intercept form of the equation </em>

<em>• Slope intercept form of the equation y = mx + c </em>

<em>• Slope intercept form of the equation y = mx + c Where , m is slope of the line </em>

<em>• Slope intercept form of the equation y = mx + c Where , m is slope of the line and c is y intercept !! </em>

<em>[</em><em> </em><em>also</em><em> </em><em>,</em><em> </em><em>we</em><em> </em><em>can</em><em> </em><em>direc</em><em>tly</em><em> </em><em>put</em><em> </em><em>the</em><em> </em><em>value</em><em> </em><em>of</em><em> </em><em>c</em><em> </em><em>=</em><em> </em><em>-</em><em>7</em><em> </em><em>and</em><em> </em><em>m</em><em> </em><em>=</em><em> </em><em>(</em><em> </em><em>-</em><em>2</em><em>/</em><em>3</em><em> </em><em>)</em><em> </em><em>from</em><em> </em><em>given</em><em> </em><em>]</em>

<em>Hence , here m = </em><em>(</em><em>-</em><em>2</em><em>/</em><em>3</em><em> </em><em>)</em><em> and c = </em><em>-</em><em>7</em>

<em>So, the required equation is y = </em><em>(</em><em> </em><em>-</em><em>2</em><em>/</em><em>3</em><em> </em><em>)</em><em>x</em><em> </em><em>-</em><em>7</em>

5 0
3 years ago
Write four hundred seven trillion six million one hundred five thousand twenty eight in standard form
Ratling [72]
Standard form would be
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Hope this helps
4 0
4 years ago
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10 burgers cost$600 what is the cost of 1 burger​
Alisiya [41]

Answer:

1 burger would cost $60

Step-by-step explanation:

7 0
3 years ago
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Find the sum <br>6+9+12+...+93<br><br>Sn=
Burka [1]
We notice that:
9-6 = 3
12-9 = 3 , Then we can conclude that this is an arithmetic progression with:
1st term a₁ = 6 and with common difference d = 3

So the first term is 6 and the last term is 93.
the formula of the sum in a A.P is :

S = (a + last term).n/2, n being the rank of the last term. So to be
able to find S, we have to calculate the value of n

We know that the last value of a A.P is :
last value = a₁ + (n-1)d
93 = 6 +(n-1)(3) → 93 = 6 + 3n -3 → n = 90/3 → n = 30 (rank 30th)

Now we can find the sum:
S = (a₁ + last term)n/2

S = (6+93)30/2

S = (99).15 = 1,485 

7 0
3 years ago
Construct a line that is perpendicular to
kodGreya [7K]
1) The line will need to be vertical down the point of x, meaning draw a line down point x. Perpendicular lines look similar to t’s
2.) Same thing, just draw a line through point O and the line. They should look similar to t’s
Hope this helped!! I understand math can get really hard, soon it’ll all be over :)
5 0
3 years ago
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