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
Bad White [126]
3 years ago
15

HELP!!! NEED HELP!!!!

Mathematics
1 answer:
blsea [12.9K]3 years ago
6 0

Answer:

C

Step-by-step explanation:

You might be interested in
Factorise = <br> 5m + 20
taurus [48]
So 20=2 itmes m2 times 5

5m=5 times m

so
5m=20
5 times m=2 times 2 times 5
divid eboth sides y 5
m=2 times 2
m=4
8 0
3 years ago
2x+3y=1 and y=-2 - 9 solve using linear combination method. Please explain steps.
kaheart [24]

Answer:

x=17

Step-by-step explanation:

2x+3y=1

y=-2-9

  • In order to combine these two equations, an idea you need to keep in mind is finding a way of setting these equations as equal to each other. I saw that each equation shared a common value, y. In this case, we need to isolate y in the first equation so that both equations =y.

2x+3y=1

3y=-2x+1

\frac{3y}{3}=\frac{-2x+1}{3}

y=-\frac{2}{3}x+\frac{1}{3}

  • With this, we now know that both -2-9 and -\frac{2}{3}x+\frac{1}{3} are equal to y, so we can set them equal to each other.

y=-\frac{2}{3}x+\frac{1}{3}

y=-11

-\frac{2}{3}x+\frac{1}{3}=-11

  • Reply to this if anything I'm saying or doing is confusing in any way, or if you find a mistake. :) Solve for x.

-\frac{2}{3}x+\frac{1}{3}=-11

-\frac{2}{3}x=-11-\frac{1}{3}

-\frac{2}{3}x =-\frac{33}{3}-\frac{1}{3}

-\frac{2}{3}x =-\frac{34}{3}

-\frac{2}{3}x(-\frac{3}{2})=-\frac{34}{3}(-\frac{3}{2})

x=\frac{102}{6}=17

x=17

  • Hopefully this answer is correct AND makes sense in terms of how I achieved it. Again, reply to this with any questions or mistakes I made and I'll do my best to answer or fix them.

 

4 0
3 years ago
Please try to explain step by step<br>Thanks in advance ​
guajiro [1.7K]

Answer:

you cant answer it without a calculator

Step-by-step explanation:

press shift - then cos then whatever u need to do to get a

5 0
3 years ago
How do you mark people as brainliest
ValentinkaMS [17]

It should give you the option to do so.

7 0
3 years ago
Read 2 more answers
What is the answer - 2x² +5X-370​
Dahasolnce [82]

Answer: x=41,1

Step-by-step explanation:

- 2x² +5X-370​

4x+5x-370

9x-370=0

x = <u>370</u>

       9

x=41,1

3 0
3 years ago
Other questions:
  • 3 ways unit rate used in real world
    12·2 answers
  • I NEED HELP SAVE ME PLEASE!!
    14·1 answer
  • PLS HELP ASAP. IM TIMED
    11·1 answer
  • Which decimal is shown on this number line?
    11·2 answers
  • A house with a rectangle base is built on a plot of land. The southwest corner of the plot is designated with coordinates (0,0).
    13·1 answer
  • If ab ≠ 0, which is equivalent to
    9·2 answers
  • An equilateral triangle has a side length of 3x^2 - 4x + 9. What is the perimeter of the triangle?
    11·1 answer
  • Samuel wants to buy cookies for his friend. The diameter of a cookie is 20 inches. What is the cookies area? Round to the neares
    14·1 answer
  • Use a net to find the surface area of the prism 32cm by 12cm by 6.5
    7·1 answer
  • What is f(5)?<br> -8<br> -1<br> 1<br> 8
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!