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
andrezito [222]
3 years ago
15

What is -1/4(8k^{2} - 16k) - 10k^{2} +15)

Mathematics
1 answer:
pogonyaev3 years ago
5 0

Answer:

-2x^2 + 4k - 10k^2 + 15

Step-by-step explanation:

-1/4(8k^2 - 16)-10k^2 + 15

-1/4 × 4 (2x^2 - 4k)-10k^2 +15

-(2x^2 - 4k)-10k^2 +15

<u>-2x</u><u>^</u><u>2</u><u> </u><u>+</u><u> </u><u>4k</u><u> </u><u>-</u><u> </u><u>10k</u><u>^</u><u>2</u><u> </u><u>+</u><u>1</u><u>5</u>

You might be interested in
1000000000000x1690000000000000000000000000000000000000000000000000000066666666e5555555555555555555555555555555555555555555555555
FromTheMoon [43]

Answer:

oh god my calculator can't handle this

Step-by-step explanation:

so your answer is 3, take it or leave it

5 0
3 years ago
Read 2 more answers
If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?
tia_tia [17]

Answer:

There are two complex roots.

Step-by-step explanation:

When the discriminant is a negative number, the parabola will not intersect the x-axis. This means that there are no solutions/two complex solutions.

4 0
3 years ago
to fill a coffee mug at a local shop costs $2.50. the shop sells coffee beans foe $12 per pound. each pound makes enough coffee
myrzilka [38]

Answer:

There are a few possible answers so read explanation, but the one I will put up here is:

20.83

Step-by-step explanation:

First you have to find how much 100 cups of coffee costs in store.

To do this you will multiply 2.50 by 100 and get 250. So now we know 100 cups of coffee in store costs $250 whereas 100 cups at home is $12.

To find how many times greater the price in store is compared to the at home brew, you have to divide 250 by 12 and get 20.8333333....

We don't stop there though, because it asks us to approximate. I am not sure what it would like us to round to, but here are some possible approximations:

  1. 20.83
  2. 20.8
  3. 21

Any of those re reasonable approximations, you choose whichever you think the question wants, or whatever your teacher asks for.

Hope this helps

3 0
3 years ago
PLEASE HELP 15 POINTS<br> Find m RS<br> S<br> (6x-28)<br> (4x+ 20)
dimaraw [331]

Answer:

arc RS = 116°

Step-by-step explanation:

Since the 2 chords are congruent then their minor arcs are congruent, that is

SR = TU, substitute values

6x - 28 = 4x + 20 ( subtract 4x from both sides )

2x - 28 = 20 ( add 28 to both sides )

2x = 48 ( divide both sides by 2 )

x = 24

Then

arc RS = 6x - 28 = 6(24) - 28 = 144 - 28 = 116°

8 0
3 years ago
Mitch borrowed $500 from his brother. He mows lawns after school and on the weekends. He charges $32 a lawn and pays his friend
alexgriva [62]
Let's take this one at a time starting from the brother's net income because this would be the root basis. We let x be the number of lawns his brother and Tom mowed. 

Brother's Net Income = 32x - 12x = 20x

Mitch promises to pay the borrowed money of $500 plus 40% of what his brother earns. The algebraic equation for this is:

Mitch's payment = $500 + 0.4(20x) = $500 +$8x
3 0
3 years ago
Read 2 more answers
Other questions:
  • How many times does 18 go into 57
    7·2 answers
  • A fracture in the left femoral region that is 5 centimeters proximal to the patellar region and 30 centimeters distal to the cox
    8·1 answer
  • A bag has 6 red marbles and 6 yellow marbles. half of the yellow marbles are made of glass. a marble is selected at random from
    8·2 answers
  • Write down the equation of a line that is parallel to the line with equation y=7-4X
    12·1 answer
  • What is the value of Negative 3 StartAbsoluteValue 15 minus 2 EndAbsoluteValue + 2 s cubed when s = negative 3?
    12·2 answers
  • What is the volume of the square pyramid with base edges 54 yd and slant height 45 yd?
    9·1 answer
  • Ill mark you as brainliestt!!!
    14·2 answers
  • 19 Julia is allowed to watch no more than 5 hours of television a week. So far this week, she has watched 1.5 hours. Write and s
    12·2 answers
  • Help pls !!!!!!!!!!!!!!!
    7·1 answer
  • Please help me this is one of three ixl I need to finish!!!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!