3 years ago

Solve the system by graphing. -3x-y=-10 4x-4y=8

Mathematics

2 answers:

GalinKa [24]3 years ago

6 0

D) (3,1) I got this 100% right

Savatey [412]3 years ago

5 0

Answer:

(3,1)

the graph is below

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What is the slope of the line that passes through the point (9,4) and (3,9)?

Fantom [35]

Step-by-step explanation:

m is for slope of the line that passes through

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{9 - 4}{3 - 9}$

$m = \frac{5}{ - 6} = - \frac{5}{6}$

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2 years ago

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3 years ago

The grades on the last history exam had a mean of 75%. Assume the population of grades on history exams is known to be normally

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3 years ago

Ruben adds some water to a glass of juice. The ratio of water to juice in his glass in now 4:6. Which fraction below represents

Anarel [89]

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Step-by-step explanation:

4/6 is equivalent to 2/3 (divide by 2)

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3 years ago

Solve This Using The Quadratic Formula: 3x^2+9x-6=0

aivan3 [116]

<h3>Therefore either $x = \frac{-3+\sqrt{17}}{2}$ or, $x = \frac{-3-\sqrt{17}}{2}$ </h3>

Step-by-step explanation:

$3x^2 +9x -6=0$ $x = \frac{-b\pm\sqrt{b^2- 4ac} }{2a}$

$\Leftrightarrow x = \frac{-9\pm\sqrt{9^2- 4.3(-6)} }{2.3}$ here a = 3 ,b = 9 and c= -6

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$\Leftrightarrow x = \frac{-3\pm\sqrt{17}}{2}$

Therefore either $x = \frac{-3+\sqrt{17}}{2}$ or, $x = \frac{-3-\sqrt{17}}{2}$

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4 years ago