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
saveliy_v [14]
3 years ago
7

Hey:) can you please help me posted picture of question

Mathematics
2 answers:
irina1246 [14]3 years ago
7 0
Use F.O.I.L (first, outer, inner, last)
(x-3)(x-7)
x^2*-7x*-3x*21
simplify
x^2-10x+21
juin [17]3 years ago
4 0
Answer:
x² - 10x + 21

Explanation:
To answer this question, we will simply multiply each term from the first bracket by each term from the second and then combine like terms to get the final expression.

This can be done as follows:
(x - 3)(x - 7)
x(x) + x(-7) -3(x) -3(-7)
x² - 7x - 3x + 21
x² - 10x + 21

Hope this helps :)
You might be interested in
HELP ASAP ! TEST! The scatterplot shows the energy in watts and the light output in lumens per watt of several lightbulbs. Which
Nina [5.8K]

Answer:

D) There is no apparent association between the energy and light output.   the image looks the most similar to a scatterplot with no relationship. im not finished with the test yet but im just trying to help anyone who might need it! i'll update with my test results.

3 0
3 years ago
How do you prove theorems behind two parallel lines cut by a transversal?
LenaWriter [7]
The way to do it can be explained like this:
Say AB and CD are the two parallel lines cut by a transversal at E and F respectively.
 Then the pairs of alternate interior angles are:
Angle(AEF) and Angle(DFE)
Angle(CFE) and Angle(BEF)
Now lets prove if this is true:
<span>Angle(CFE) +Angle(DFE) = 180
(linear pair)
Also
Angle(CFE) +Angle(AEF) = 180
(Corresponding angles)
</span><span>Equate the above results:
Angle(CFE) +Angle(DFE) = Angle(CFE) +Angle(AEF)
</span><span>Angle(DFE) = Angle(AEF)
</span>Happens the same with
<span>Angle(CFE) = Angle(BEF)
</span>Hope this is very useful for you

5 0
3 years ago
Help will mark brainliest
kirill [66]

Answer:

- 1 4/5

Step-by-step explanation:

-1 1/5 + - 3/5

Since the signs are the same, we add and take the sign

1 1/5 + 3/5

1 4/5

The sign is negative

- 1 4/5

On the number line start at - 1 1/5 and go to the left 3/5( since the sign is negative)  you will end up at - 1 4/5

8 0
3 years ago
OK so I don't want answers, I just want someone to walk me through this and teach me how to do it.
Serggg [28]

Answer:

352cm²

Step-by-step explanation:

The shape is a cuboid and it has 6 faces, and the opposite faces are equal, so I calculate 3 different faces and multiplied it by 2 to give me the total surface area. Therefore, total surface area = the addition of all the surface areas in the shape. And to get each surface area, you have find the area of each of the 6 faces, and add them together, to give you the total surface area.

6 0
2 years ago
What is the domain of the function? <br>Function Wrap up review questions PLZ HELP
Lady_Fox [76]
It’s kind of hard to read which number the ends are on. Can you take a better picture?
6 0
2 years ago
Other questions:
  • Complete the inequality.<br><br> 11/20 ___ 55%<br><br> &lt;<br> =<br> &gt;
    12·1 answer
  • Add these mixed numbers -Thanks!
    8·1 answer
  • Pls help with the solution of the question.​
    7·1 answer
  • Javier built a skateboard ramp by elevating one end of an 8-foot piece of plywood so that it makes a 20 degree angle with the gr
    6·1 answer
  • A toy rocket lifts off at an initial velocity of 102 feet per second from a height of 10 feet. The height of the rocket can be m
    10·1 answer
  • Erin ran 5 km in 25 minutes. What is her speed in km per minute? (Answer as a decimal)​
    13·1 answer
  • Plot the set of points and identify the shape. Then find the perimeter of the polygon.
    15·1 answer
  • Due in 20 mins<br><br> Thank you:)
    11·1 answer
  • Solve the equation: q –10 = -10
    7·2 answers
  • The first and fourth terms of a proportion are called the means.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!