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Liula [17]
2 years ago
11

The quadratic equation -2w^2-6+80 will be zero when w equals

Mathematics
2 answers:
finlep [7]2 years ago
7 0

Answer:

Answer: x will be equal to 5 and -8

Step-by-step explanation:

{ \tt{ - 2 {w}^{2} - 6w + 80 = 0 }}

» Divide all equation through out by -2:

{ \tt{ {w}^{2}  + 3w - 40 = 0}}

» Factorise the equation quadratically:

{ \tt{(x - 5)(x + 8) = 0}} \\ { \tt{x = 5 \:  \: and \:  \:  - 8}}

Alexus [3.1K]2 years ago
3 0

Answer:

x equals 5 and negative (8)

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Answer:

Car 1 slope = 35

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Step-by-step explanation:

Slope formula is

slope = \frac{y_2-y_1}{x_2-x_1}

To find slope, pick two points from graph of Car 1

(4,140) (6,210)

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slope Car 2= \frac{200-120}{5-3}= 40

When slope is larger then line is steeper

slope of Car 2 is greater than slope of Car1

So Red line is steeper than the blue line.

Slope is change is y over change in x

It means Change in miles over change in gallons

So slope is miles per gallon

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4 years ago
A machinist uses a special tool to measure the diameter of a small pipe. The measurement tool reads 0.276 inch. What is this mea
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