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3 years ago

Which expression shows the first step in dividing 5x + 3 by x?

Mathematics

1 answer:

klemol [59]3 years ago

4 0

Answer:

B) 5x/x +3/x

Step-by-step explanation:

Choice B is the only choice showing a correct denominator: x.

Here, the "first step" is apparently to divide each term by the denominator. This is reasonable when the denominator is only one term.

(I'd say the first step is to divide the first term by the first term of the denominator.)

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Round 18.194 to the place named tenth hundred ones

Novay_Z [31]

tenth place: 18.2

hundredth place: 18.19

one place: 18

tens place: 20

hundred place: 0

I didn't know which one you needed so I did a bunch

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3 years ago

Hurry 50 points for correct answer

Ad libitum [116K]

Answer: "7 is a solution to the original equation. The value –1 is an extraneous solution."

Step-by-step explanation:

The equation $x=\sqrt{6x+7}$ can be solved by squaring both sides:

$x^2 = 6x + 7\\\\x^2 - 6x - 7 = 0\\\\(x-7)(x+1) = 0$

We can see that -1 and 7 are solutions, but make sure they are not extraneous by substituting them in the original equation:

$1 = \sqrt{-1}\\ 7 = \sqrt{49}$

The square root of 49 equals 7, but the square root of -1 is an imaginary number.

The correct choice is "7 is a solution to the original equation. The value –1 is an extraneous solution."

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3 years ago

What is the averge speed of a plane flying 2,184 miles from knoxville tn to los angeles ca in 7 hours

katrin2010 [14]

Answer:

312 mi/hr

Step-by-step explanation:

Distance = 2184 miles

Time taken = 7 hours

Average speed = Distance / time taken

Average speed = 2184 miles / 7 hours

Average speed = 312 miles per hour

Hence, the average speed Traveled by the plane traveling from Knoxville to Los Angeles is 312 miles per hour

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2 years ago

The moon is 250,000 miles away.Haw man feet is it from earth

12345 [234]

The answer is " 1320000000 ft " away

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3 years ago

Find solution to the system of linear equations. 5x1 + x2 = 0 , 25x1 + 5x2 = 0

Zigmanuir [339]

Answer:

the system of equation has infinite solution

Step-by-step explanation:

$5x_1 + x_2 = 0$ , $25x_1 + 5x_2 = 0$

Solve the first equation for x_2

Subtract 5x1 on both sides

$5x_1 + x_2 = 0$

$x_2 =-5x_1$

Now substitute -5x1 on second equation

$25x_1 + 5x_2 = 0$

$25x_1 + 5(-5x_1)= 0$

$25x_1-25x_1= 0$

0=0

So the system of equation has infinite solution

5 0

3 years ago

Read 2 more answers