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Hunter-Best [27]

2 years ago

5

Which graph best represents the equation y = 3x - 2?

2 answers:

g100num [7]2 years ago

8 0

Answer:

Step-by-step explanation:

So, the slope is -3x, the coefficient is a negative number so the line must be as x decreases, y increases and as x increases, y decreases. In this case, the first graph and the last graph represent the negative slope. However, the function has an y-intercept

Oliga [24]2 years ago

3 0

Answer:

This is a linear equation, the graph of a line. This function is in slope intercept form, y=mx+b . In this example the slope is =riserun=3=31 and the y -intercept is −2

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In the smoky mountains of Tennessee, the percent of moisture that falls as snow rather than rain is approximated by P = 10.0 ln

Mars2501 [29]

Answer:

A. About 4,900 ft

Step-by-step explanation:

We want h such that ...

5 = 10·ln(h) -80

8.5 = ln(h) . . . . . . . add 80, divide by 10

e^8.5 = h ≈ 4914.8 . . . . take the antilog

h ≈ 4900 . . . . feet

7 0

3 years ago

Any two conditions of an object to float on liquid

bixtya [17]

Answer:

it needs to be less dense than water and weight needs to be equal to buoyant force.

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Digiron [165]

Answer:

10

Step-by-step explanation:

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2 years ago

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Inga [223]

Answer:

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Step-by-step explanation:

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Read 2 more answers

Use completing the square to determine which of the following gives the solutions to 3x2 - 24x + 40 = 28.

jeka94

Answer:

$x=4+2\sqrt{3}$

$x=4-2\sqrt{3}$

Step-by-step explanation:

<u>Completing the square</u>

when $ax^2+bx+c=0$

Given equation:

$3x^2-24x+40=28$

Subtract 40 from both sides:

$\implies 3x^2-24x=-12$

Divide both sides by 3:

$\implies x^2-8x=-4$

Add the square of half the coefficient of $x$ to both sides:

$(\frac{b}{2})^2=(\frac{-8}{2})^2=16$

$\implies x^2-8x+16=-4+16$

Factor the left side and simplify the right side:

$\implies (x-4)^2=12$

Square root both sides:

$\implies x-4=\pm\sqrt{12}$

Add 4 to both sides and simplify the radical:

$\implies x=4\pm\sqrt{4 \cdot 3}$

$\implies x=4\pm\sqrt{4}\sqrt{3}$

$\implies x=4\pm2\sqrt{3}$

5 0

1 year ago