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4 years ago

Find the solution to the equation below. 2x^2+3x-20=0

Mathematics

2 answers:

icang [17]4 years ago

8 0

C maybe bro I’m not really sure tho think I’m messing up

Sphinxa [80]4 years ago

4 0

<h2>Answer:</h2>

<u>The right choice is </u><u>(D) x= -4, 5/2</u>

<h2>Step-by-step explanation:</h2>

2x^2+3x-20=0

By factoring the expression we get

2x²2 +8x−5x−20=0

(x+4) (2x−5) = 0

Now

(x+4) = 0 OR x = -4

and

(2x-5) = 0 OR x = 5/2

S the solutions are

x= -4 and x = 5/2

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4 years ago

Solve for x?<br> A)6<br> B)-4<br> C)-8<br> D)-12

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3 years ago

you work for a telecommunications company and need to analyze the outcome of a proposed new cell tower project. cell phone radio

umka21 [38]

Answer:

The equations describing the area which each tower covers are given as

Tower A : $x^{2} + y^{2} = 16$

Tower B : $(x - 5)^{2} + (y - 4)^{2} = 9$

Tower C : $(x - 4)^{2} + (y + 4)^{2} = 25$

Step-by-step solution:

Cell phone radio towers broadcast a cell phone signal in circular pattern

Tower A at Adele Acres have position co-ordinates as (0,0) and a coverage radius of 4 ml. So, the area which it covers is given by the equation,

$x^{2} + y^{2} = 16$ -------------------------------(1)

Tower B at Brown Lake have position co-ordinates as (5,4) and a coverage radius of 3 ml. So, the area which it covers is given by the equation,

$(x - 5)^{2} + (y - 4)^{2} = 9$ -------------------------------(2)

Tower C at Cady City have position co-ordinates as (4,-4) and a coverage radius of 5 ml. So, the area which it covers is given by the equation,

$(x - 4)^{2} + (y + 4)^{2} = 25$ -------------------------------(2)

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3 years ago

Choose the correct graph of the following condition.<br><br> {(x, y) : x = 4} {( x, y ) : y = 4}

shtirl [24]

The last graph is the correct graph for the problem

5 0

4 years ago

Read 2 more answers

A scalene right triangle has a base of 3 mm, a height of 4 mm, and a third side length of 5 mm. Find the area.

LuckyWell [14K]

Answer:

6 square mm

Step-by-step explanation:

base*height/2

3*4=12

12/2=6

6 0

4 years ago