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3 years ago

W(x)=x^3 - 5x^2 + 8x - 4 I need the x and y intercepts and the behavior of this equation.

1 answer:

4 0

X intercept is where the line crosses the x axis or where y=0
y intercept is where the line crosses the y axis or where x=0

the equation is 3rd degree and the leading coefient is positive so it goes from bottom left to top right, with 2 changes in direction (up to down or down to up)

x intercepts
W(x)=0=x^3-5x^2+8x-4
um, I graphed it and the x intercepts are at x=1 and x=2

y intercept is where x=0
W(0)=0^3-5(0)+8(0)-4=-4
the y intercept is y=-4

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The average cost of tuition and room and board at a small private liberal arts college is reported to be $8,500 per term, but a

Tom [10]

Answer:

H₀: µ ≤ $8,500; H₁: µ > $8,500

z= +1.645

Step-by-step explanation:

From the given problem As average cost of tuition and room and board at a small private liberal is less than the financial administrator As hypothesis is true.

As standard deviation is $ 1,200

α = 0.05

H₀: µ ≤ $8,500

if the null hypothesis is true then value for critical z is +1.645.

6 0

3 years ago

i thibk of a certain number. if i multiply it by 6, and add -18 to the product and take away one-third of the sum, i will get -2

vova2212 [387]

Answer:

The answer is negative 4

4 0

3 years ago

Help on this please

eimsori [14]

Answer:

Opening: Opens upwards

Axis of Symmetry: -7/2

Vertex: (-7/2, -81/4)

X - intercepts: (1, 0) and (-8, 0)

Y - intercept: (0, -8)

Step-by-step explanation:

Opening: 'a' is greater than zero

Axis of Symmetry:

$\frac{-7}{2(1)} =\frac{-7}{2}$

Vertex:

$y= (\frac{-7}{2})^{2} +7(\frac{-7}{2}) -8\\y= (\frac{49}{4}) +(\frac{-49}{2}) -8\\y= \frac{49}{4} +\frac{-98}{4} -8\\y=\frac{-49}{4}-8\\y = \frac{-81}{4}$

X - intercepts:

(x-1)(x+8)

x = 1 and x = -8

Y - intercept: (0, -8)

$y= 0^{2} +7(0) -8\\\\y= -8\\$

5 0

3 years ago

Is 100 mm less or greater than 1 dm

kipiarov [429]

$1m=10dm=100cm=1,000mm\\\\1dm=10cm=100mm\\\\\boxed{100mm=1dm}$

6 0

3 years ago

PLEASE HELP Isabella grew tomatoes to sell at the farmer's market. She kept track of her finances in a table.

ira [324]

Answer:

11.68

Step-by-step explanation:

23.76 + 1.49= 25.25

25.25 + 2.57= -27.82

39.50

27.82

11.68

Its important to remember that 23.76, 1.49, and 2.57 are all negative numbers that you have to add up and subtract it from $39.50 to get how much Isabella made.

5 0

4 years ago