1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Xelga [282]
3 years ago
5

Solve the problem. Express your answer to the correct number of significant figures. 6. 221 × 7. 11 − 13. 7 =.

Mathematics
1 answer:
Tresset [83]3 years ago
7 0

Answer:

30.5

Step-by-step explanation:

hope this helps mark me brainliest:)

You might be interested in
If the cost of a competing factor of production, such as a machine that also could do the job, rises. This would result in a shi
Harrizon [31]

Keep in mind that we're framing it based on what the first sentence says, which is "If the cost of a competing factor of production, such as a machine that also could do the job, rises".

So if the cost of getting a machine part, various parts, or the entire machine cost rises, then demand for the machine will go down. This will make employers seek out substitutes. In this case, those substitutes would be human labor. As employers demand for labor goes up, the wages will rise assuming the supply of workers is held constant. If the supply of workers increased, then you could argue the wages could go down. So that's why I'm assuming the supply is held in check.

6 0
3 years ago
Write an equation in slope-intercept form perpendicular to the given equation through the given point
Irina18 [472]

Answer:

y = (1/3)x - 4

Step-by-step explanation:

Any line perpendicular to the given equation y = -3x + 4 will have a slope which is the negative reciprocal of -3; that is, +1/3.

Start with the general slope-intercept form y = mx + b.

Insert the coordinates 6 and -2 into y = mx + b:  -2 = (1/3)(6) + b, or

-2 = 2 + b.  Thus, b = -4, and the desired equation is

y = (1/3)x - 4

6 0
3 years ago
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
3 times the sum of r and s squared minus 2 times the sum of r and d square
coldgirl [10]

Answer:

r^2 + 6rs  - 4rd - 2d^2 + 3s^2

Step-by-step explanation:

3(r+s)^2 - 2(r+d)^2

PEMDAS

parenthesis, exponents, multiplication, division, addition, subtraction

in that order

3( r^2 + 2rs + s^2 ) - 2(r^2+ 2rd + d^2)

3r^2 + 6rs + 3s^2 - 2r^2 - 4rd - 2d^2

r^2 + 6rs  - 4rd - 2d^2 + 3s^2

7 0
2 years ago
olivia printed invitations for a party. if she printed 286 invitations in 26 minutes, how many did she print each minute?
yulyashka [42]
First, divide 286 by 26 and you get 11. Hope this helped!
3 0
3 years ago
Read 2 more answers
Other questions:
  • A test grade was 92%. 60 items were correct. How many test times were there? (SHOW WORK)
    9·2 answers
  • Ben writes the number 74,443. The value of the digit 4 in the hundreds place is 10 times the value of the digit 4 in what place
    10·2 answers
  • The school bus Evie rides is scheduled to arrive at her bus stop at 8:20 a.m. each day. The table below shows the actual arrival
    8·1 answer
  • Listed below are the lead concentrations in mu ??g/g measured in different traditional medicines. Use a 0.10 0.10 significance l
    7·1 answer
  • What’s is 2 1/2 divided 1/3
    14·1 answer
  • 6. If f(x) = –8 – 5x, what is f(–4)? f(–4) = 12 f(–4) = –28 f(–4) = –12 f(–4) = 28
    5·2 answers
  • Francisco purchased a 2010 model sedan for $24,999. The dealership offered him a $199/month
    10·1 answer
  • Which expression equals a number that is NOT a rational number?
    12·1 answer
  • Please PLEASE please!!! Any math experts can solve these I will give thanks and mark thank you!!!!
    14·1 answer
  • F(x) = 3x+2<br> What is f(5)?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!