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3 years ago

X²+9=2x-3 Solve this please

Mathematics

2 answers:

murzikaleks [220]3 years ago

7 0

Answer:

there is no solution to this problem

you can replace it with whatever number you want

BabaBlast [244]3 years ago

6 0

Answer:

x={7,3}

Step-by-step explanation:

x^2-2x+9+12=0

x^2-2x+21=0

(x-7)(x-3)=0

x-7=0

x=7

x-3=0

x=3

x={7,4}

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Nimfa-mama [501]

Answer:

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Step-by-step explanation:

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6 0

3 years ago

in the figure below trianglePQM and triangleQRP are right triangles. the measure of lineQM is 6 and the measure of lineQP is 8.

Kipish [7]

Answer:

Option 4 is correct. The length of PR is 6.4 units.

Step-by-step explanation:

From the given figure it is noticed that the triangle PQR and triangle MQR.

Let the length of PR be x.

Pythagoras formula

$hypotenuse^2=base^2+perpendicular^2$

Use pythagoras formula for triangle PQM.

$PM^2=QM^2+PQ^2$

$PM^2=(6)^2+(8)^2$

$PM^2=36+64$

$PM^2=100$

$PM=10$

The value of PM is 10. The length of PR is x, so the length of MR is (10-x).

Use pythagoras formula for triangle PQR.

$PQ^2=QR^2+PR^2$

$(8)^2=QR^2+x^2$

$64-x^2=QR^2$ .....(1)

Use pythagoras formula for triangle MQR.

$MQ^2=QR^2+MR^2$

$(6)^2=QR^2+(10-x)^2$

$36=QR^2+x^2-20x+100$

$36-x^2+20x-100=QR^2$ .... (2)

From equation (1) and (2) we get

$36-x^2+20x-100=64-x^2$

$20x-64=64$

$20x=128$

$x=6.4$

Therefore length of PR is 6.4 units and option 4 is correct.

3 0

3 years ago

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SIZIF [17.4K]

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A man has 1020304 eggs some of the eggs were spoiled he divided remaining eggs equally among 348 people how many eggs were spoil

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Answer:

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Step-by-step explanation:

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4 years ago

KIM [24]

Answer:

x=-1 is the answers for the question

Step-by-step explanation:

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