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3 years ago

The value of 4a( a - 3 ) is :

Mathematics

1 answer:

liubo4ka [24]3 years ago

3 0

Answer:

Its -12 if a is meant to be multiplied

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Laura just finished a new book about a time-traveling magician. She read the same amount every day and completed the book in jus

svp [43]

So you have 85 pages and 10 days.
You would do 85/10 to get 8.5 pages each day. Hope that’s right !

5 0

2 years ago

What is the equation of the line passing through the points (Two-fifths, StartFraction 19 Over 20 EndFraction) and (one-third, S

Elan Coil [88]

Answer:

You have to find the slope first. Which is y1-y1 divided by x1-x2

Then you find the y-intercept which you take the slope for m like for example if you find the slope, 2, then the equation should be y=2x+b. You take the coordinates on the problem and put them on the y or x on the equation. Then when you find the y-intercept you add it to the equation like for the example that I used above, you have to put the y-intercept on b. So if the y-intercept is 5 then the equation would be y=2x+5.

5 0

3 years ago

Solve each one variable equation.

uranmaximum [27]

Answer:

See below in bold.

Step-by-step explanation:

a. |x| = 6

x = 6, -6.

b. |x − 5| = 4

x - 5 = 4

x = 9.

x - 5 = -4

x = 1.

c. 2|x + 3| = −10

No solution because |x + 3| is an absolute value so is always positive.

8 0

3 years ago

How to write -2x + y = -3 in slope intercept form? Preferably with steps.

Montano1993 [528]

Answer:

y = 2x - 3

Step-by-step explanation:

Start by writing out the given equation.

-2x + y = -3

The goal is to isolate the variable y.

For this equation, all you need to do is add 2x to each side.

-2x + y + 2x = -3 + 2x

Therefore, the answer is y = 2x -3.

I don't know if you are are familiar with the equation y = mx + b, but here's a little refresher. m is the slope, or in this case 2. b is the y-intercept, or in this case -3.

The equation y = mx + b is slope intercept form, so if you know this, you should be able to write any equation in slope intercept form.

Hope this helps!

6 0

3 years ago

An electronics company has a contract to deliver 21,475 radios within the next four weeks. The clientis willing to pay $20 for e

navik [9.2K]

Step-by-step explanation:

<em>See attached a detailed annotation of the LP formulation</em>

let is describe the problem bellow.

An electronics company has a contract to deliver 21,475 radios within

the next four weeks. The client is willing to pay

$20 for each radio delivered by the end of week 1

$18 for each radio delivered by the end of week 2

$16 for each radio delivered by the end of week 3

$14 for each radio delivered by the end of week 4

Each worker can assemble 50 radios/wk.

Size of present workforce = 40.

Any experienced worker can be taken off the assembly line to instruct a class

of three trainees; after one week of instruction, each of the trainees can

either proceed to the assembly line or instruct additional new classes.

Weekly wages for experienced workers: $200

Weekly wages for trainees: $100

Production costs, excluding wages: $5/radio.

3 0

4 years ago