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blagie [28]
3 years ago
12

WILL GIVE BRAINLIEST thank you

Mathematics
1 answer:
crimeas [40]3 years ago
8 0

Answer:

I'm pretty sure the answer is the second choice

Step-by-step explanation:

because you have to add X to both sides

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What are the coordinates of the roots of the equation x sqaured + 4x + 3= 0
scZoUnD [109]

Answer:

a

x

2

+

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the formula for the roots is

x

=

−

b

±

√

b

2

−

4

a

c

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a

(

1

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Identify the values for

a

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b

,

&

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cmp

a

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+

b

x

+

c

=

0

a

=

1

b

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c

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(

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Substitute these numbers into eh formula

x

=

−

4

±

√

4

2

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(

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×

1

×

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×

1

(

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Carefully proceed and do the calculations

x

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4

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√

16

−

12

2

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−

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√

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2

x

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−

4

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2

2

now calculate the two separate solutions

x

1

=

−

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+

2

2

=

−

2

2

=

−

1

x

2

=

−

4

−

2

2

=

−

6

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Answer link

Step-by-step explanation:

8 0
2 years ago
The sum of squares of two consecutive odd numbers is 514 find the numbers ​
amid [387]

Correct Question : The sum of squares of two consecutive positive odd numbers is 514. Find the numbers.

\rule{130}1

Solution :

Let the two consecutive positive odd numbers be x and (x + 2)

\rule{130}1

☯ \underline{\boldsymbol{According\: to \:the\: Question\:now :}}

:\implies\sf x^2 + (x + 2)^{2} = 514 \\\\\\:\implies\sf x^2 + x^2 + 4x + 4 = 514\\\\\\:\implies\sf 2x^2 + 4x + 4 = 514 \\\\\\:\implies\sf 2x^2 + 4x = 514 - 4\\\\\\:\implies\sf 2x^2 + 4x = 510 \\\\\\:\implies\sf 2x^2 + 4x - 510 = 0\\\\\\:\implies\sf x^2 + 2x - 255 = 0 \:\:\:\:\:\Bigg\lgroup \bf{Dividing\:by\:2}\Bigg\rgroup\\\\\\:\implies\sf x^2 + 17x - 15x - 255 = 0\\\\\\:\implies\sf x(x + 17) - 15(x + 17) = 0\\\\\\:\implies\sf (x + 17) (x - 15)\\\\\\:\implies\sf x = - 17\:or\:x = 15\\\\\\:\implies\underline{\boxed {\sf x = 15}}\:\:\:\:\:\Bigg\lgroup \bf{Positive\:odd\: number}\Bigg\rgroup

When,

\bullet\: \textsf {x = } \textbf {15}

\bullet\: \sf x + 2 = 15 + 2 =\textbf{ 17}

\therefore\:\underline{\textsf{The required positive integer is \textbf{15 and 17}}}.

5 0
3 years ago
15/45 and 45/135 simplified
iren2701 [21]
"15/45" = "1/3"
"45/135" = "1/3" 
8 0
3 years ago
U is the set of colleges in a country. A is the set of colleges that have a hockey team. B is the set of colleges that have a ph
mojhsa [17]

Answer: C

Step-by-step explanation: If B is the set of colleges that have a physics department.  

B’ is the set of colleges that do not have a physics department.  

U is the union, so we are going to put every element from A and B' together. It can be translated as OR.  

A U B’ is the set of elements in a country that have a hockey team (A) or do not have a physics department (B’) .

8 0
3 years ago
You need to know the number of different arrangements possible for five distinct letters. You decide to use the permutations rul
svlad2 [7]
<span>First option is correct

Both methods are correct, since you are counting all possible arrangements of 5 items taken 5 at a time.</span>
3 0
3 years ago
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