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andrezito [222]

2 years ago

6

Solve the given equations. PLEASE show your work. Choose if the equation has infinite many solutions or no solution. It can have

a solution
-2(x + 4) + 9x = 4 - 7x

1 answer:

nadezda [96]2 years ago

4 0

The answer is x=6/7.

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Help please I don’t know how to do this

Mashcka [7]

The correct answer is the last one
(0,-4)

4 0

2 years ago

Express the polar coordinates (-1, 180) as Cartesian coordinates.

Mashcka [7]

Answer: The correct point is (1, 0)

In polar coordinates, the first number is the distance from the origin in any direction. The second number is an angle measurement that tells us the direction to go from the origin.

Therefore, we have to move -1 one unit (or backwards) from the origin. Now, all we need to know is the direction to move.

The second number is 180, so we make an angle of 180 degrees and move in that direction.

But where do we start?

We always start from the origin straight right along the x-axis. That is degrees 0. So a 180 degree angle would move us left along the x-axis. But remember, we are moving back 1 space, so we will end up at (1, 0).

6 0

2 years ago

Twelve wrestlers compete in a competition. If each wrestler wrestles one match with each other wrestler, what is the total numbe

sp2606 [1]

The answer would be 6.

5 0

3 years ago

Read 2 more answers

Answer ASAP 84.9 66.2 38.2 33.8

tankabanditka [31]

Step-by-step explanation:

You need to use trigonometric stuff here. Since you're given the hypotenuse and an angle you can plug that right into an equation.

Recall that sin is opposite over hypotenuse and cos is adjacent over hypotenuse.

$sin(\theta)=\frac{o}{h} \\sin(30)=\frac{x}{14} \\0.5=\frac{x}{14} \\x=7$

Now that you know the opposite side (DC) you can use tan, too, but I'm going to use cos.

$cos(\theta)=\frac{a}{14} \\cos(30)=\frac{x}{14} \\\frac{\sqrt{3} }{2} =\frac{x}{14} \\x=7\sqrt{3}$

This is the adjacent side (BC). I put it in its exact value, but in decimal form it's ≈12.124.

Now you can do the perimeter:

$2l+2w\\2(12.124)+2(7)\\24.248+14\\38.25$

Your answer is the 38.2

6 0

2 years ago

Thout multiplying determine whether the product of 2 1/2 x 2/3 is located on the number line at point A, B, or C . Explain your

saveliy_v [14]

Point a
Because 2.5 x 0.3333333 = 0.83333= 0.83
On the timeline point at is about where 0.83 is between 0 and 1

6 0

2 years ago