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natulia [17]
3 years ago
12

6 + x when x equals 3

Mathematics
2 answers:
Drupady [299]3 years ago
8 0

Answer:

6 + x= when x equals 3. If x equals 3 then the equations is written as 6+3 which 9.

The answer is 9.

Step-by-step explanation:

MissTica3 years ago
4 0

Answer: the answer is 9 duhh

Step-by-step explanation:

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Find the length of side x in the simplest radical form with a rational denominator.
krok68 [10]

Answer:

\sqrt{2}

Step-by-step explanation:

We can use either angle, but I'm going to use the one on the bottom. So, in order to find x, we need to use tangent. One side we know is the adjacent, and the side we don't know is the opposite, therefore we need tangent. Here's the equation:

tan(45)=\frac{x}{\sqrt{2}}

Obviously, we can't have a root in our denominator, so we need to get rid of it somehow. Here's how:

We multiply the denominator of the fraction by \sqrt{2}. \sqrt{2} multiplied by itself is simply 2. Try it! We also want to multiply the numerator by \sqrt{2}, but there isn't really a number we can use with that, so we'll just add it to the side. The equation you have now is:

tan(45)=\frac{x\sqrt{2} }{2}

Let's try to work this out now. Since the denominator is 2, we have to multiply both sides by it to find x.

\frac{x\sqrt{2} }{2*2} =x\sqrt{2}

tan(45)*2=2

We can plug 2 in for the x in the numerator now:

\frac{2\sqrt{2} }{2}

2 and 2 cancel out, so you get 1 in both the numerator and denominator. That's how we get our answer of x=\sqrt{2}

Also, because this is a 45-45-90 triangle, you don't really have to do all that work. If it's a 45-45-90 triangle, both legs should be the same length. :)

7 0
3 years ago
????????????????????????
choli [55]

Answer: 12

Step-by-step explanation:

\frac{6}{18}=\frac{4}{c}

Solve for c

c=\frac{4*18}{6}\\ c=\frac{72}{6} \\c=12

3 0
3 years ago
Whats balance fe+30^2 >fe^2O^3
blsea [12.9K]

Answer:

You are given:

4Fe+3O_2 -> 2Fe_2O_3

4:Fe:4

6:O_2:6

You actually have the same number of Fe on both sides, The same is true for O_2 so yes this equation is properly balanced.

For added benefit consider the following equation:

CH_4+O_2-> CO_2+2H_2O

ASK: Is this equation balanced? Quick answer: No

ASK: So how do we know and how do we then balance it?

DO: Count the number of each atom type you have on each side of the equation:

1:C:1

4:H:4

2:O:4

As you can see everything is balanced except for O To balance O we can simply add a coefficient of 2 in front of O_2 on the left side which would result in 4 O atoms:

CH_4+color(red)(2)O_2-> CO_2+2H_2O

1:C:1

4:H:4

4:O:4

Everything is now balanced.

Step-by-step explanation:

5 0
2 years ago
A savings accouny has 50 dollars in it at the start of the year and 20 dollars is deposited each week. After x weeks, there are
Diano4ka-milaya [45]
I’m assuming you need to write an equation to display the relationship.
y=20x+50
3 0
2 years ago
Select the sets that are not functions.
Temka [501]
D and E are the ones that aren’t functions because they use the x-values more then once
5 0
3 years ago
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