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2 years ago

Is (0,0) a solution to x + y > 5 , 2x - y < 4

Mathematics

1 answer:

laiz [17]2 years ago

4 0

Answer:

(0,0) is not a solution to x + y > 5 , but it is a solution for 2x - y < 4

Step-by-step explanation:

Substitute x=0,y=0

0>5 (not possible)

0<4(possible)

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Answer:

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Step-by-step explanation:

${8}^{2} + 9(12 \div 3 \times 2) - 7$

$64 + 9(12 \div 3 \times 2) - 7$

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Step-by-step explanation:

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3 years ago

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Solve the following:<br> a. 4x^2 + 5x + 3 = 2x^2 − 3x<br> b. c^2 − 14 = 5c

Jet001 [13]

Answer:

(a) x = -0.418 , -3.581

(B) c = 6.855, -1.855

Step-by-step explanation:

(A) We have given equation $4x^2+5x+3=2x^2-3x$

$2x^2+8x+3=0$

On comparing with standard quadratic equation $ax^2+bx+c$

a = 2, b = 8 and c = 3

So roots of the equation will be $x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-8\pm \sqrt{8^2-4\times 2\times 3}}{2\times 2}=\frac{-8\pm 6.324}{4}=-0.418,-3.581$

(b) $c^2-14=5c$

$c^2-5c-14=0$

a = 1, b = -5 and c= -14

So $c=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-(-5)\pm \sqrt{(-5)^2-4\times 1\times (-14)}}{2\times 1}=\frac{5\pm 8.71}{2}=6.855,-1.855$

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3 years ago

Estimate the sum of<br> 1/3 and 1/4

Artemon [7]

Answer:

7/12 or (Decimal: 0.583333)

Step-by-step explanation:

1/3 +1/4 = 7/12

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2 years ago

Is (0,0) a solution to x + y > 5 , 2x - y < 4​

Is (0,0) a solution to x + y > 5 , 2x - y < 4