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Mazyrski [523]
4 years ago
7

What are the roots of the equation x 2-10x+21=0

Mathematics
1 answer:
horrorfan [7]4 years ago
3 0
So factoring this would be:
(x-7)(x-3)
so the solution set is 
{7, 3} 
I'm not sure if this is what you were asking, if it wasn't, I'll edit it.
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I need it by 11:59 :)))))) plssssssssssss tyty ty ty ty ty ty
Phantasy [73]

Answer:

- 4 < x \leqslant 5

I hope I helped you^_^

7 0
3 years ago
What IS the solution of 3 |x-7| -2=4
N76 [4]
Answer is below........

6 0
3 years ago
What is the slope intercept form of the equation of the line?
beks73 [17]

Answer:

The slope-intercept form of the equation of the line is:

y = 2/3x + 2

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

  • m is the slope
  • b is the y-intercept

Given the points

  • (0, 2)
  • (3, 4)

(x₁, y₁) = (0, 2)

(x₂, y₂) = (3, 4)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

               =  [4 - 2] / [3 - 0]

               = 2 / 3

Thus, the slope of the line = m = 2/3

We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.

From the graph, it is clear

at x = 0, y = 2

Thus, the y-intercept b = 2

now substituting m = 2/3 and b = 2 in the slope-intercept form

y = mx+b

y = 2/3x + 2

Therefore, the slope-intercept form of the equation of the line is:

y = 2/3x + 2

5 0
3 years ago
Calculate the distance between Points A and B.<br> A.4.5<br> B.7.1<br> C.7.8<br> D.9.2
storchak [24]

Answer:

7.8 units separate the points A and B.

Step-by-step explanation:

Going from B to A, x increases by 6 (this is the horizontal side of the triangle formed by vertices A and B), and y increases by 5.  Applying the Pythagorean Theorem, we get

d = √(6² + 5²), or √(61, which is approximately 7.8, the desired distance.

4 0
3 years ago
To find the volume of a rectangular prism, you can use the formula of V = l w h. A rectangular prism has a volume of 60 cubic ce
anzhelika [568]

Answer:

W = 4

Step-by-step explanation:

The nice thing about algebra is that you can look for any variable in an equation as long as you have the number for the other variables.

1. Write our the equation. V = l w h

2. Put in as many numbers as you can. 60 = 5 w 3

3. Isolate the variable. To do that perform the mathematical opposite to the target on both sides. So to get rid of five, we have to divide it on both sides of the equal sign.

60/5 = w 3

12/3 = w

4 = w

The width is 4cm

7 0
4 years ago
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