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Anna35 [415]
3 years ago
11

3x-5(x-5)= -4+2x+1 Can someone help me out plzzzz

Mathematics
1 answer:
dusya [7]3 years ago
7 0

Answer:

7

Step-by-step explanation:

So basically first distribute the -5 to the stuff in the parenthesis and then solve.

Hope I helped!! :)

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What is the length of ac?
leonid [27]

Answer:

Step-by-step explanation:

Given triangles are similar, so we setup a proportion  

(140-x)/81 = x/9

solving gives x = 14

AC = 140-x = 140-14 = 126

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3 years ago
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58 - 5X = 30X - 75 need help please
Tju [1.3M]

Answer:

3.8

Step-by-step explanation:

58-5x=30x-75

Let's add 5x to both sides of the equation...

58=35x-75

Then, let's add 75 to both sides of the equation...

133=35x

Divide by the coefficient of x, (35)...

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Find the missing value to the nearest hundredth of a degree. Help!!
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A line passes through the points (0, 9) and (9, 19). What is its equation in slope-intercept form?
STatiana [176]

Answer:

y = 10/9x + 9

Step-by-step explanation:

To write the equation in its slope-intercept form, y = mx + b, we need to find the slope (m) of the line and its y-intercept (b).

Given the points (0, 9) and (9, 19), we can solve for the slope of the line using the following formula:

m = \frac{y2 - y1}{x2 - x1}

Let (x1, y1) = (0, 9)

and (x2, y2) = (9, 19)

Substitute these values on the formula:

m = \frac{y2 - y1}{x2 - x1} = \frac{19 - 9}{9 - 0} = \frac{10}{9}

Therefore, the slope (<em>m </em>) = 10/9.

Next, the <u>y-intercept</u> is the point on the graph where it crosses the y-axis, and has the coordinates, (0, <em>b </em>). It is also the value of the y when x = 0.

One of the given points is the y-intercept of the line, given by (0, 9). The y-coordinate, 9, is the value of b.

Therefore, the linear equation in slope-intercept form is: y = 10/9x + 9

3 0
2 years ago
{(1,1), (1,2), (1,3), (1,4), (1,5), (1,6), (2,1), (2,2), (2,3), (2,4),
Rus_ich [418]

Answer:

  1/9

Step-by-step explanation:

Pairs that sum to 5 are (1,4), (2,3), (3,2), (4,1). There are 4 ways you can get that sum out of 36 possible outcomes. Assuming each outcome is equally likely, the probability of a sum of 5 is ...

  p(5) = 4/36 = 1/9

6 0
3 years ago
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