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2 years ago

What is 7x-6=9x+6? PLEASE HELP ME!!!!!!!!!!!!!

Mathematics

2 answers:

NARA [144]2 years ago

8 0

Answer:

x = -6

Step-by-step explanation:

Step 1: Write out equation

7x - 6 = 9x + 6

Step 2: Subtract 7x on both sides

-6 = 2x + 6

Step 3: Subtract 6 on both sides

-12 = 2x

Step 4: Divide both sides by 2

-6 = x

Step 5: Rewrite

x = -6

vovangra [49]2 years ago

5 0

Answer:

x=-6

Step-by-step explanation:

7x-9x=6+6

-2x=12

x=-6

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What is the total surface area??

Olenka [21]

Answer:

216

Step-by-step explanation:

Use geometric formulas to solve for each individual SIDE of the triangular prism

TOP and BOTTOM TRIANGLE sides:

$\frac{ab}{2}$
$\frac{6(8)}{2}$ <--- times 2 because we have TWO identical triangle sides

RIGHT RECTANGULAR side from our perpsective:

LxW
8(7)

FRONT RECTANGULAR side:

LxW
7(6)

BACK RECTANGULAR side:

LxW
7(10)

Now you add all of those formulas together for your answer.

$\frac{6(8)}{2}$ + $\frac{6(8)}{2}$ + 8(7) + 7(10) + 7(6)

= 216

4 0

2 years ago

A parabolic microphone used on the sidelines of a professional football game uses a reflective dish 24 inches wide and 6 inches

Strike441 [17]

The answer is a.
When you are solving problems like this you would use the equation y^2=4ax. The x and Y would be the coordinates. Based on the equation you have given the coordinates would be (6,12) and (6,-12), (24 is split up evenly between the y-axis).
Then we go on to solve the equation by plugging in the numbers 12^2=4a(6)
144=24a
144/24=24a/24
6=a

5 0

3 years ago

Fill in the blank. (5x)2 a0x2

Yuki888 [10]

Answer: $a_0=25$

Step-by-step explanation:

It is given that, $(5x)^2=a_0x^2$

We need to find the value of $a_0$

As $(5x)^2=a_0x^2$

Solving LHS

$25x^2=a_0x^2$

Now comparing the coefficients of $x^2$

In LHS the coefficient of $x^2$ is 25

In RHS the coefficient of $x^2$ is $a_0$

It implies that, $a_0=25$

So, the value of $a_0$ is 25.

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2 years ago

A bag contains 8 red marbles, 6 white marbles, and 6 blue marbles. find P (red or blue)

vlabodo [156]

I'm assuming you're supposed to find the chance of them drawing red or blue/
So the whole is 20, and red and blue combined is 14.So its 14/20, which is 70%, and as a simplified fraction it is 7/10.

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3 years ago

Please help! Correct answer only!

bogdanovich [222]

Answer:

Expected Payoff ⇒ $ 1.50 ; Type in 1.50

Step-by-step explanation:

Considering that 1 out of the 100 tickets will have a probability of winning a 150 dollar prize, take a proportionality into account;

$100 - Number of Tickets,\\1 - Number of Tickets You Can Enter,\\\\1 / 100 - Probability of Winning,\\$ 150 - Money Won,\\\\Proportionality - 1 / 100 = x / 150, where x - " Expected Payoff "\\\\1 / 100 = x / 150,\\100 * x = 150,\\\\Conclusion ; x = 1.5 dollars$

Thus, Solution ; Expected Payoff ⇒ $ 1.50

6 0

3 years ago