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OLga [1]
3 years ago
7

What are the coordinates of the roots of the equation X squared plus 4X +3 equals zero

Mathematics
2 answers:
OLga [1]3 years ago
8 0
Answer= (-1,0), (-3,0)
MissTica3 years ago
3 0

Answer:

(- 3, 0 ), (- 1, 0 )

Step-by-step explanation:

Given

x² + 4x + 3 = 0

Consider the factors of the constant term (+ 3) which sum to give the coefficient of the x- term (+ 4)

The factors are + 3 and + 1, since

3 × 1 = 3 and 3 + 1 = 4, thus

(x + 3)(x + 1) = 0

Equate each factor to zero and solve for x

x + 3 = 0 ⇒ x = - 3

x + 1 = 0 ⇒ x = - 1

Coordinates of roots are (- 3, 0 ) and (- 1, 0 )

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The distance d, in meters, that a rhinoceros runs in s seconds is represented by the equation d=16s. What is the constant of pro
castortr0y [4]
Time          Distance                Distance / Time
2hrs          90 miles                  90 miles / 2 hrs =  45 miles / hr
3hrs          135 miles                135 miles / 3 hrs =  45 miles / hr
5hrs          225 miles                 225 miles / 5 hrs =  45 miles / hr
6hrs          270 miles                  270 miles / 6 hrs =  45 miles / hr

Constant of proportionality is 45 miles / hr. This is the same for the four values. The unit rate is also 45 miles / hr.

Let us assume the Distance , d is directly proportional to Time, t
d α t
d = kt 
Constant of proportionality is k which is D/T
d = 45t 

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3 years ago
Giving brainliest to first correct answer:PPP
tia_tia [17]
The correct answer is 317
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2 years ago
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What is the reason for each step in the solution of the equation?
MA_775_DIABLO [31]
<span>2x-1=4(x+1) Given. This is the expression you were originally given. 2x-1=4x+4 Distributive Property You distributed the 4 in the subexpression 4(x + 1) to make 4x + 4 2x=4x+5 Addition or Subtraction Property of Equality You added 1 to both sides of the equation. â’2x=5 Addition or Subtraction Property of Equality You subtracted 4x from both sides of the equation. x=-5/2 Multiplication or Division Property of Equality You divided both sides by -2.</span>
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3 years ago
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Fractional Equations Help with steps
Sliva [168]

Answer:

see explanation

Step-by-step explanation:

(e)

\frac{2x-1}{3} - \frac{3x-1}{4} = 1

Multiply through by 12 to clear the fractions

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8x - 4 - 9x + 3 = 12

- x - 1 = 12 ( add 1 to both sides )

- x = 13 ( multiply both sides by - 1 )

x = - 13

---------------------------------------------------------------

(f)

\frac{3m}{4} - 5 = 24 ( add 5 to both sides )

\frac{3m}{4} = 29 ( multiply both sides by 4 )

3m = 116 ( divide both sides by 3 )

m = \frac{116}{3}

--------------------------------------------------------------

(g)

\frac{5(y+2)}{2} - \frac{4(y+1)}{3} = 3

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4 0
3 years ago
Which congruency theorem can be used to prove that △ABD ≅ △DCA?<br> SSS<br> ASA<br> SAS<br> AAS
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Answer:

SAS


Step-by-step explanation:

Given: Two triangles ΔABD and ΔDCA,

We have, AD=AD (common)

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With the SAS rule of congruency,

ΔABD≅ΔDCA


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3 years ago
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