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son4ous [18]
4 years ago
14

1. c+z when c = 3 and z = 17

Mathematics
1 answer:
ivann1987 [24]4 years ago
8 0
1) 3+17= 20
2) 40-15= 25
3) 3 x 20= 60
4) 35/5= 7
5) 2 x 6= 1
12= 1
1/12.
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Write the following in slope-intercept form.
Umnica [9.8K]

Answer:

\huge\boxed{y=4x-7}

Step-by-step explanation:

Linear equations will always be in the form y=mx+b, where m is the slope and b is the y-intercept

Since we know nothing about this equation, other than the fact that there are two points in it, we must find the slope and the y-intercept.

Luckily, we have two points to work with. We know that the slope between two points will be the change in y divided by the change in x (\frac{\Delta y}{\Delta x}), so we can use the two points given to us to find both changes.

The y value goes from 1 to 17, which is a 17-1=16 change.

The x value goes from 2 to 6, which is a 6-2=4 change.

Now that we know both changes, we can divide the change in y by the change in x.

\frac{16}{4}=4

Now that we know the slope (4), we can plug it into our equation (y=mx+b).

y=4x+b

Now all we need to do is find the y-intercept. Since we know the slope and one of the points the line passes through, we can find the y-intercept by substituting in the values of x and y. Let's use the point (2, 1).

  • 1 = 4(2) + b
  • 1 = 8+b
  • b = 1-8
  • b = -7

Therefore our y-intercept is -7. Now that we know the slope and the y-intercept, we can plug it into our equation.

y=4x-7

Hope this helped!

4 0
3 years ago
The mass of a dust particle is 0.000000000753 kg. How would this number be written in scientific notation? 753 * 10-10 7.53 * 10
Andrei [34K]

Answer:

the answer is 7.53 * 10-10

Step-by-step explanation:


7 0
3 years ago
What gives the range of the function y=|x-1|+7
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The rage of the function is x=-6
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4 years ago
Fernando evaluated the expression below. What was Fernando’s error?
iragen [17]
C. Fernando incorrectly found the product of -2 and -5

<span>(should be +10 instead of -10)</span>
5 0
3 years ago
Read 2 more answers
A parabola can be drawn given a focus of (1, -7) and a directrix of y = 1. Write the
Paha777 [63]

Answer:

Step-by-step explanation:

focus (1 , -7)  ⇒ a = 1  & b = -7

y = 1 ⇒ c = 1

Equation of parabola :

(x - a)² + (y - b)² = (y - c)²

(X - 1)² + (y + 7)² = (y - 1)²

Now, expand.

x² - 2x + 1 + y² + 2*7*y + 7² = y² - 2*y*1 + 1

x² - 2x + 1 + y² - 14y + 49 = y² - 2y +1

x² - 2x + 1 + y² - 14y +  49  - y² + 2y - 1 = 0

x² - 2x  + <u>y² - y²</u>   <u> - 14y + 2y</u>   <u>+ 1 + 49 - 1 </u>= 0

x² - 2x  - 12y + 49 = 0

7 0
3 years ago
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