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DENIUS [597]
3 years ago
12

Help, I don’t understand.

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
8 0

Answer:

e

Step-by-step explanation:

erffg

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Write the quadratic equation whose roots are 3 and -1, and whose leading coefficient is 5.
Assoli18 [71]

Answer:

5x² - 10x - 15 = 0

Step-by-step explanation:

Given that the roots are x = 3 and x = - 1, then the factors are

(x - 3) and (x + 1) and the quadratic is the product of the factors, that is

f(x) = a(x - 3)(x + 1) ← a is a multiplier

Here a = 5, thus

f(x) = 5(x - 3)(x + 1) ← expand factors using FOIL

     = 5(x² - 2x - 3) ← distribute parenthesis by 5

     = 5x² - 10x - 15

Thus equation is

5x² - 10x - 15 = 0

6 0
3 years ago
PLEASE HELP MEEEEEEEE ILL MARK YOU BRAINLIEST
Andre45 [30]

Answer:

16.8

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
(9+4c)+(2+3x) add timed so hurry!
Luba_88 [7]

Answer: 3x + 4c + 11

Step-by-step explanation: Combine like terms.

5 0
3 years ago
How much is one troy ounce of silver worth?
alexdok [17]
One troy ounce of silver is worth, $17.67.
HOPE THIS HELPS YOU! ^_^
3 0
3 years ago
= neage Check Find the distance between the polnts (6,-5) and (-3,-5). ​
miskamm [114]

Answer:

The answer is

<h2>9 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

<h3>d =  \sqrt{ ({x1 - x2})^{2} +  ({y1 - y2})^{2}  }  \\</h3>

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(6,-5) and (-3,-5)

The distance between them is

<h3>d =  \sqrt{ ({6 + 3})^{2} + ( { - 5 + 5})^{2}  }  \\   = \sqrt{ {9}^{2} +  0 }  \\  =  \sqrt{81}</h3>

We have the final answer as

<h3>9 units</h3>

Hope this helps you

4 0
3 years ago
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