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3 years ago

20 Points! Which ordered pair is the best estimate for the solution of the system of equations?

Mathematics

1 answer:

yan [13]3 years ago

3 0

Answer:

The best estimate for the solution is the ordered pair $(-6.5,-3.5)$

Step-by-step explanation:

we have

$y=\frac{3}{2}x+6$ ------> equation A

$y=\frac{1}{4}x-2$ ------> equation B

we know that

using a graphing tool, the solution of the system of equations is the intersection point both graphs

The intersection point is $(-6.4,-3.6)$

therefore

The best estimate for the solution is the ordered pair $(-6.5,-3.5)$

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Geometry

g100num [7]

$A=27 \ cm^2 \\ \\ d_{1}=3x , \ \ d_{2} = 2x \\ \\ S=\frac{1}{2}\cdot d_{1}\cdot d_{2}\\ \\27 = \frac{1}{2}\cdot 3x \cdot 2x \\ \\ 3x^2 = 27 \ \ /:3$

$x^2 = 9 \\ \\3x=x=\sqrt{9}\\ \\x=3 \ cm \\ \\ d_{1}=3x = 3*3 =9 \ cm \\ \\d_{2}=2x=2*3 = 6 \ cm \\ \\ Answer : \\ The \ length \ of \ the \ diagonal \ is: \ d_{1}= 9 \ cm \ and \ d_{2}= 6 \ cm$

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4 years ago

Https://www.you.tube.com/watch?v=BZUdVqvRBxE

Bumek [7]

Answer:

ok will do thank you for the points

6 0

3 years ago

1. Find the equation of a line passing through the points (1,-2) and (-3,10).

liraira [26]

Answer:

Step-by-step explanation:

(1 , -2) x₁ =1 & y₁ = -2

(-3,10) x₂= -3 & y₂ = 10

First we need to find the slope.

$\boxed{Slope = $\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}$}$ $\boxed{Slope=\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}}$

$=\dfrac{10-[-2]}{-3-1}\\\\\\=\dfrac{10+2}{-4}\\\\\\=\dfrac{12}{-4}\\\\\\= - 3$

m = -3

Equation of the line: y = mx + b

y = -3x + b

To find the value of b, take one of the point and substitue in the above equaiton.

(1 , -2)

-2 = -3*1 + b

-2 = -3 + b

-2 + 3 = b

b = 1

Equation of the line:

y = -3x + 1

4 0

3 years ago

Find the limits<br>The answer is - 3/4

Kipish [7]

Hello from MrBillDoesMath!

Answer:

This is a puzzling one! The answer is indeed -3/4 but I was unable to prove it using mathematics appropriate to the "middle school" level. Sorry I couldn't be more helpful.

(To prove it I generated the first few terms of its Laurent series, a Calculus topic. The first few terms are -(3/4) + (41/64x) + and as x approaches minus infinity the term with "x" in the denominator goes to zero, leaving the constant value -3/4 as the answer. )

Thank you,

MrB

8 0

3 years ago

se necesitan 4 trabajadores y 9 horas para pintar un cerco si el trabajo debe completarse en 6 horas Cuántos trabajadores se nec

steposvetlana [31]

Answer:

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Step-by-step explanation:

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3 years ago