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Sophie [7]
2 years ago
13

Little helppp please ​

Mathematics
1 answer:
liberstina [14]2 years ago
8 0

Answer:

Answer given above

Step-by-step explanation:

a.) 6 m n^8

b.)2x^8 y^3

c. ) d^3 e

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The difference in the measures of two complementary angles is 12 degrees. find the measure of the angles?
8090 [49]

If two angles are complementary, the sum of their measures is 90 degrees. Call one of the angles x. This means that its complement is 90 - x degrees. But the difference in their measures is 12 degrees.
6 0
2 years ago
Read 2 more answers
The power P of a jet of water is jointly proportional to the cross sectional area A and to the cube ofthe velocity V. (a) Write
anastassius [24]

Answer:

a)  P=kAV^3

b)  54

Step-by-step explanation:

a)

If one quantity, A, is jointly proportional to other 2 quantities (B & C), we can write proportionality equation as:

A=k*B*C

Where

k is the proportionality constant

Now, for this problem, P is jointly proportional to A and CUBE OF V, so we can write:

P=kAV^3

b)

Now velocity, V, is triples, which means it becomes 3V

Also, cross sectional area, A, is doubled, which means it becomes 2A

Let's put these into formula and see the difference:

P=kAV^3\\P=k(2A)(3V)^3\\P=k(2A)(27V^3)\\P=(2*27)kAV^3\\P=54kAV^3

So, power is multiplied by a factor of 54. Power becomes 54 times if Area is doubled and velocity is tripled ( as seen ).

8 0
2 years ago
Is it possible to have a triangle with two right angles? Explain your reasoning.
Black_prince [1.1K]

Answer and Explanation:

Because of the fact that the sum of the three interior angles of a triangle must be 180 degrees, a triangle could not have two right angles.

6 0
3 years ago
Read 2 more answers
So my math teacher doesn't give us any steps to know how to do the equations. She just tells us the unit, then the vocab plus th
Lemur [1.5K]

I personally understand what you are saying... everyone has a teacher like that at least once in their schooling.


Doing two-step equations can sometimes be tricky, even if you understand the topic pretty well. All two-step equations are: equations that require two objectives to solve for the variable (That's why it's called a <em>two-step </em>equation).

There are multi-step equations...but let's take one bite at a time.

First, let's establish one simple rule:

Anything you do to one side of the algebraic equation, you must do to the other side for the equation to remain true.

For example:

2x-4=20


So, we have this 2x-4 just chillin' out with the x. When trying to solve for a variable, this is usually not what we want. The x needs to be alone for us to know what x equals.

For the first step of getting x alone, we can add 4 on each side of the equation to cancel out the -4 on the variable's side. Remember to do it on both sides of the equation!

2x-4=20 becomes 2x-4+4=20+4

Did you see what I did there? All I did was basically add 4 to 2x-4 and 20. The equation remains equal, but using that simple rule, we were able to get one step closer to isolating the x in the equation.

To continue...

2x-4+4=20+4

2x-4+4 turns into 2x <em>(This is because the -4 and the +4 cancel out.)</em>

Now we have 2x=24

This next step should look familiar to you (assuming you already know how to solve for one-step equations, I'll keep it short and sweet).

2x=24

Now, since 2x is the same as saying 2 times x, we can do the opposite of multiplication...which is <em>division, </em>like so:

\frac{2x}{2} =\frac{24}{2}

The 2's will cancel each other out and \frac{24}{2} simplifies to 12.


Awesome! Looks like we solved our two-step equation!

In the equation: 2x-4=20 , x=12


Some things to remember:

  1. What ever you do to one side of the equation, you must do to the other.
  2. You want to apply the opposite sign of the number you are trying to cancel out of the equation while isolating the x.
  3. Never make it harder than it needs to be. It is called a two-step equation for a reason, multi-step requires more than two...but wait until you have to work those before you start using fifty different ways to solve the equation.

Hope I was able to help you out! Have a good one, and God bless!

<em>Also, if you are confused about something I answered, or I may be incorrect, feel free to let me know!</em>

4 0
3 years ago
There are 60 people in a choir
Aloiza [94]

Answer:

The value of n is 2.

Step-by-step explanation:

The total number of people in the choir = 60

Number of  women in the choir = 30

Let the number of men in the choir be represented by x, so that;

Number of women = 3x

So that;

3x = 30

x = \frac{30}{3}

 = 10

The number of men in the choir is 10.

the number of children in the choir: the number of men in the choir = n:1

number of children in the choir = 60 - (number of women + number of men)

                                                    = 60 - 40

                                                    = 20

number of children in the choir = 20

Thus,

the number of children in the choir: the number of men in the choir = 20:10

                                                            = 2:1

The value of n is 2.

4 0
3 years ago
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