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3 years ago

28 x 9 x 3 - 1 = ? HELP PLS

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

3 0

The correct answer is 755

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For what values of a does the equation a+x= 1+xa^2 have no solution?

Anton [14]

Answer:

We have the equation

$a+x= 1+xa^2$

we leave the terms with x on the left side of the equation and the independent terms on the right side.

$x-xa^2=1-a\\(1-a^2)x=1-a\\$

resolving for x we have that

$x=\frac{1-a}{1-a^2}$

Since we need that the equation doesn't have solution, then it is necessary that the denominator of x be 0 and this occur when $1-a^2=0\\1=a^2\\a=\pm1$

Then, for $a=\pm1$ the equation hasn't solution

7 0

3 years ago

1/2x + x + 1/5y + y = 32

NeTakaya

(1/2)x + x + (1/5)y + y = 32

(3/2)x + (6/5)y = 32

4 0

3 years ago

What is the simplest form of of 4/12

VikaD [51]

You have to divide both the numerator and the denominator and you get 1/3 and thats the simplest form

7 0

3 years ago

Read 2 more answers

Which expression is equivalent to 4.35 - 5.5?

Drupady [299]

Answer: 4.35 - 5.5 = -1.15 ≈ - (23÷20)

Step-by-step explanation:

4.35 - 5.5= -1.15

The equivalent equation to 4.35 - 5.5 will be,

-1.15 ≈ - (23÷20)

7 0

3 years ago

Plz answer last question and im lost!

harkovskaia [24]

Answer:

$\pi$ radian

Step-by-step explanation:

We know that angle for a full circle is 2 $\pi$

In the given figure shape is semicircle

hence,

angle for semicircle will be half of angle of full circle

thus, angle for given figure = half of angle for a full circle = 1/2 * 2 $\pi$ = $\pi$

Thus, answer is $\pi$ radian

alternatively, we also know that angle for a straight line is 180 degrees

and 180 degrees is same as $\pi$ radian.

6 0

3 years ago