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3 years ago

Solve each system of equations by using substitution. x+4y=3 2x-3y=17

2 answers:

4 0

X + 4y = 3 x = -4y + 3
2x - 3y = 17

2(-4y + 3) - 3y = 17
-8y + 6 - 3y = 17
-11y + 6 = 17
-11y = 11
y = -1

x = -4(-1) + 3
x = 4 + 3
x = 7

(7, -1) is your answer

Keith_Richards [23]3 years ago

3 0

$Equation\ 1--- x+4y=3 \\ \\ Equation\ 2---2x-3y=17 \\ \\ x=3-4y \\ \\ \\ \\ Substitude\ x\ into\ equation\ 2, \\ \\ 2(3-4y)-3y=17 \\ \\ 6-8y-3y=17 \\ \\ -11y=11 \\ \\ y=-1$ $Substitude\ y\ into\ equation\ 1, \\ \\ x+4(-1)=3 \\ \\ x=3+4 \\ \\ x=7$

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3 years ago

A meteorologist is studying the speed at which thunderstorms travel. A sample of 10 storms are observed. The mean of the sample

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The 95% confidence interval for the true mean speed of thunderstorms is [10.712, 13.688].

Step-by-step explanation:

Given information:

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3 years ago

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3 years ago

Read 2 more answers

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Answer:

Folow the steps to learn what transformations were determined.

Step-by-step explanation:

First we would have to graph the parent function which is f(x) = x^2. Start by finding your x and y values. Find the y values by plugging in the x values into the parent function.

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Once these points are plotted you can start determining what are the transformations. Find the difference between the parent function and f(x) = (x + 4)^2 + 2 by looking below.

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Horizontal Shifts:

f(x + c) moves left,

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3 years ago