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
frosja888 [35]
3 years ago
7

Someone help please

Mathematics
1 answer:
Mrac [35]3 years ago
4 0
Use ax^2 + bx + c = 0

ac = -8
b = 2

The factors are 4 and -2.
Plug them into the equation:

x^2 + 4x - 2x - 8

Then factorise it:

x ( x + 4) - 2 (x + 4)

so m = 4

(x + 4)^2

You might be interested in
The sum of two number is 36. One number is 2 times as larger as the other. What are the numbers?
Brut [27]
12 and 24.

12 x 2 = 24

12 + 24 = 36.
4 0
3 years ago
Read 2 more answers
Please read the following picture below and use 3.142 instead of <img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title
Marina86 [1]

Check the picture below.

now, let's notice the larger "yellow" semicircle, it has a gap, the gap on the right is of a semicircle with a diameter of 10, BUT it also has a descender on the left, a part that's hanging out, that part is also a semicircle.

so if we use the descending semicircle to fill up the gap on the right, we'll end up with a filled up larger semicircle, whose diameter is 20, and whose radius is 10 cm.

\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=10 \end{cases}\implies A=\pi 10^2\implies A=100\pi \\\\\\ \stackrel{\textit{half of that for a semicircle}}{A=\cfrac{100\pi }{2}}\implies A=50\pi \implies \stackrel{\pi =3.142}{A=157.1}

8 0
3 years ago
Connor and Angie helped take attendance during their school's practice fire drill. If the actual count was between 77 and 89, in
scoundrel [369]

Answer:

±12

15.8% or 13.5 %

Step-by-step explanation:

Most absolute error would be when actual count was 77 or 89 but number counted was 89 or 77 respectively.

absolute error= 89-77 or 77-89

Percent error= 12/77 × 100 or 12/89× 100

3 0
3 years ago
Which type of lines match these equations (2/3)x =(5/3)y<br> 2x-5y=0
Allisa [31]
This equation is a linear equation. They form straight lines. In this case, the line goes through the origin of a cartesian plane. It can be rewritten as
y = 2/5x. 
The graph looks like this:

6 0
3 years ago
please help me solve these 8 questions!! I will also be giving out brainlest and 30 points to you if you get it right!
sveticcg [70]
Could you please post the question idk if you see the person who commented above so i typed here but i will try to answer the questions when you post them! 

6 0
4 years ago
Other questions:
  • Eric has a dog walking business. He charges $13 per dog he walks and $6 for the water he buys for the dogs. If he made $97 on Mo
    14·1 answer
  • A bag contains six real diamonds and five fake diamonds if one diamonds is pick what the odds a real diamond is pick
    9·2 answers
  • Joann decides to pour her punch into 1-quart containers to fit into her refrigerator until the party starts she has eight 1 quar
    8·1 answer
  • Enter the x-intercepts of the quadratic function in the boxes. f(x) = x^2 + 4x - 60?
    7·2 answers
  • Re-write this question to make it a statistical question: How old am I?
    13·1 answer
  • Given f(x) = 7 - 4x. If the domain of the function is {-4, 0, 1.75, 3}, what is the range of the function?
    9·1 answer
  • Help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·2 answers
  • 5² × 4³ - 8² - 6³ = ....​
    10·2 answers
  • The graph of a function is shown.
    5·1 answer
  • Which of the following best describes the expression 4(y + 6)?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!