How do you graph -3.5 and -1.5 on the number line?

Mathematics

1 answer:

Mila [183]3 years ago

6 0

Answer:

find where -3.5 and -1.5 would be on a number line from -5 to 5

Step-by-step explanation:

-5 -4 -3 -2 -1 0 1 2 3 4 5

-3.5 -1.5

-3.5 would be in between -4 and -3

-1.5 would be in between -2 and -1

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69 points!!!

Amiraneli [1.4K]

Answer:

C) The solution for the given system of equations are A(0,-5) and B(-4,3)

Step-by-step explanation:

The given system of equation are : $x^{2} + y^{2} = 25\\2x + y = -5$

from equation 2, we get y = -5 - 2x .

Put the above value of y in the equation (1).

We get: $x^{2} + y^{2} = 25 \implies x^{2} + (-5-2x)^{2} = 25$

By ALGEBRAIC IDENTITY:

$(a+b)^{2} = a^{2} + b^{2} + 2ab\\ (-5-2x)^{2} = (-5)^{2} + (-2x)^{2} + 2(-5)(-2x)$

or, $x^{2} + (-5-2x)^{2} = 25 \implies x^{2} + (25 + 4x^{2} + 20x) = 25$

or, $5x^{2} + 20x = 0 \implies x(5x + 20) = 0$

⇒ x = 0 or, x = -20/5 = -4

So, the possible values for x are: x = 0 or x = -4

If x = 0, y = -5-2x = -5-2(0) = -5

and if x = -4, y = -5 -2(-4) = -5 + 8 = 3

Hence, the solution for the given system of equations are A(0,-5) and B(-4,3)

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Read 2 more answers

Will give 5 stars on your answer and a thank you.

DENIUS [597]

Answer:

the variable term is (t)