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2 years ago

Solve the inequality 2x−y⩾−5 for y. Which inequality represents the inequality in slope-intercept form?

Mathematics

1 answer:

aleksandr82 [10.1K]2 years ago

4 0

Answer:

$y\leq 2x+5$

This represents slope intercept form: y = mx + b

Step-by-step explanation:

$2x - y \geq -5\\2x+5\geq y$

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Is the ratio 4.2:1.5 proportional to the rational 12.6:4.5

VARVARA [1.3K]

Answer:

YES

Step-by-step explanation:

cause 12.6 / 4.5 = 2.8

and 4.2 / 1.5 = 2.8

3 0

2 years ago

The daily cost of producing x high performance wheels for racing is given by the following function, where no more than 100 whe

algol [13]

Answer:

The production would be 25 wheels,

Lowest average cost is $ 123.75

Step-by-step explanation:

Given cost function,

$C(x) = 0.09x^3 - 4.5x^2 + 180x$

Where,

x = number of wheel,

So, the average cost per wheel,

$A(x) = \frac{C(x)}{x}=\frac{0.09x^3-4.5x^2 + 180x}{x}=0.09x^2 - 4.5x + 180$

Differentiating with respect to x,

$A'(x) = 0.18x - 4.5$

Again differentiating with respect to x,

$A''(x) = 0.18$

For maxima or minima,

$A'(x) = 0$

$0.18x - 4.5 = 0$

$0.18x = 4.5$

$\implies x = \frac{4.5}{0.18}=25$

For x = 25, A''(x) = positive,

i.e. A(x) is maximum at x = 25.

Hence, the production would be 25 wheels for the lowest average cost per wheel.

And, lowest average cost,

A(x) = 0.09(25)² - 4.5(25) + 180 = $ 123.75

5 0

3 years ago

If you get how to do this could you please help me on this question?

anzhelika [568]

Fan is at 75 degree angle

7 0

2 years ago

Read 2 more answers

Help me with math please

xenn [34]

Yes I agree with that

7 0

3 years ago

Add or subtract in simplest form 4 1/6 - 1 2/3

kifflom [539]

The answer is 2 because 4/1 - 83628 = four

3 0

2 years ago