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3 years ago

What should be the first step in adding these equation to eliminate y 12x - 2y = -1 + 4x + 6y =-4

Mathematics

1 answer:

barxatty [35]3 years ago

6 0

Answer:

See below

Step-by-step explanation:

Assumed you need to solve the system:

12x - 2y = - 1
4x + 6y = - 4

In order to solve this by elimination, triple the first equation and add the second one.

It will make the coefficients of y same with opposite signs:

-6y and 6y

When added together these cancel, leaving x as the only variable.

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STRUCTURE A quality control inspector at a bolt factory examines random bolts that come off the assembly line. All bolts being m

ELEN [110]

From an absolute value inequality, we have that:

The minimum diameter is 6.46 mm.
The maximum diameter is 6.54 mm.

The absolute value measures the distance of a point or a function to the origin.

One example of inequality is:

$|f(x)| \leq a$

Which has solution:

$-a \leq f(x) \leq a$

In this problem:

Bolts with a diameter of 6.5 mm, with a tolerance of 0.04 mm, thus the absolute value of the difference of the diameter D and 6.5 has to be of at most 0.04, that is:

$|D - 6.5| \leq 0.04$

Applying the solution:

$-0.04 \leq D - 6.5 \leq 0.04$

$-0.04 \leq D - 6.5$

$D - 6.5 \geq -0.04$

$D \geq 6.46$

$\leq D - 6.5 \leq 0.04$

$D \leq 6.54$

The minimum diameter is 6.46 mm.
The maximum diameter is 6.54 mm.

A similar problem is given at brainly.com/question/24835634

5 0

3 years ago

I need help asap please

Zigmanuir [339]

3/5 is smaller then 3/4(you can tell from denominators) 5/8 is smaller then 3/5, and 7/4 is greater then 1, so the only logical one is C. Hope this helped!

8 0

4 years ago

F + 20 = 41 A) 21 B) 22 C) 62 D) 61

alukav5142 [94]

F=21 (A)
I hope this was helpful

6 0

3 years ago

Read 2 more answers

What is the sum of the first 10000 numbers?

ss7ja [257]

sum = 10000(10000-1)/2

sum = 10000(100001)/2