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4 years ago

Which steps could be used to solve x+3.6= - 1.7

Mathematics

1 answer:

MAXImum [283]4 years ago

4 0

The correct answers to this question are:

Add -3.6 to both sides

and

Subtract 3.6 from both sides.

This is because to solve any equation, we need to get the variable by itself on one side of the equation. The only way to do this in one step in the example above is to eliminate the +3.6 term on the left side of the equation. To do this, our two options are to add -3.6 or to subtract 3.6 (because these are technically the same operation).

Hope this helps!

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Ksenya-84 [330]

A) AAS I think not sure

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3 years ago

Someone please answer will mark brainliest thank you

kompoz [17]

Answer:

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Step-by-step explanation:

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3 years ago

Scarlett is trying to find the height of a dam. She stands 90 meters away from the dam and records the angle of elevation to the

adoni [48]

Answer:

45.55 meters

Step-by-step explanation:

I'm guessing she recorded above her height, right?

To find the height of the dam, use the tangent ratio:

$tangentX=\frac{opposite}{adjacent}$

The height of the dam is the side opposite the given angle, and this will represent x. The adjacent side (the hypotenuse is NEVER considered the adjacent side) is the distance from Scarlett to the dam. The angle of elevation is the angle of 26°. Insert the values:

$tan26=\frac{x}{90}$

Solve for x. Multiply both sides by 90:

$90*(tan26)=90*(\frac{x}{90})\\\\90*tan26=x$

Insert equation into a calculator:

$x=90*tan26\\\\x=43.9$

Now add Scarlett's height:

$43.9+1.65=45.55$

The dam is 45.55 meters tall.

Finito :D

6 0

4 years ago

Can someone graph this? I'll give brainliest.

vodomira [7]

It's nice of you to offer, but no thanks.

To correctly graph this, you need to set up a simple equation and table of values. Luckily, this equation is dead-simple; I'll define y as the total cost and x as the number of water bottles sold.

$y=1.5x$

Since 1.50$ is the cost for one bottle, multiplying that with your variable that defined the amount of bottles, x, gets you the total, y. Now that we have a basic equation, we can begin plugging in values.

Recall that a function is basically just something that takes in a value and returns another one; in our case, it takes the amount of bottles and returns the total cost. Now, plug in the x-values present on the graph (specifically only whole numbers, since you can't have a half bottle). I can't make a proper table but I'll make do.

x y

--------

0 0

1 1.5

2 3

3 4.5

4 6

5 7.5

-----------

Great, now that you have a table of values all you have to do is plug them into the graph, which I've attached. It's pretty crude since I drew it in mspaint but I'm sure you get the point at this point.

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3 years ago

Determine whether QRS is a right triangle for the given vertices. Explain.

LekaFEV [45]

Answer:

Step-by-step explanation:

6 0

4 years ago