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Ainat [17]
2 years ago
5

Solve 2x^2-3x-5=0 with the quadratic formula please and have a bless day

Mathematics
1 answer:
Troyanec [42]2 years ago
6 0

Answer:

( 2x^62- 3x) - 5 = 0

2x^62 - 3x - 5 = 0

X = - 1

- 5/2

The it is my dear friend

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The area of a rectangle is 56 cm. The length is 2cm more than x and width is 5 cm less than twice x. Solve for x. Round to the n
ra1l [238]
Area = Length * Width = l * w
l = x + 2
w = 2x - 5
Area = (x + 2)(2x - 5) = 56
Area = 2x^2 -x  - 10 = 56
Area = 2x^2 - x - 66 = 0 Now you have to factor this thing.
Area = (2x + 11)( x - 6) = 0 This is more or less done by guessing. 
2x + 11 = 0 can't work. x would be negative.
x - 6 = 0
x = 6.

Check
=====
l = x + 2
l = 6 + 2
l = 8

w = 2*x - 5
w = 2*6 - 5
w = 12 - 5
w = 7

l*w = 8*7 = 56. It checks.
If this is the best answer you get, could you consider a Brainly? I need 2 of them to move up.
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3 years ago
Put this equation in slope intercept form 5x-2y=10
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This is the answer and the steps for doing it

4 0
3 years ago
[SCREENSHOT INCLUDED] Which of the following is the best estimate of f '(2) based on this table of values?
mel-nik [20]

Using derivatives, it is found that the best estimate of f '(2) based on this table of values is of 10.

The rate of change <u>from x = 0 to x = 2</u> is given by:

r_1 = \frac{2 - (-16)}{2 - 0} = \frac{18}{2} = 9

From <u>x = 2 to x = 4</u>, it is given by:

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The average of these rates is:

A = \frac{r_1 + r_2}{2} = \frac{9 + 11}{2} = 10

Hence, the best estimate of f '(2) based on this table of values is of 10.

To learn more about derivatives, brainly.com/question/18590720

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During Christmas a book store sold 30 books. If the ratio of books go bookmarks sold was 10:1 ,how many bookmarks did the store
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<span>books to bookmarks
books : bookmarks
10 : 1
10 * 3 : 1 * 3
30 : 3
3 bookmarks

Since the book store sold 30 books they also sold 3 bookmarks.

Answer: 3 bookmarks</span>
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3 years ago
What is the slope of the equation 3x - 4y = 32?<br> -3/4<br> -8<br> 3/4<br> 8
Thepotemich [5.8K]

Answer:

y=34x−8

Step-by-step explanation:

7 0
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