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
skad [1K]
3 years ago
9

How do you work out 9 + (-4) - 6 ? please make it detailed

Mathematics
1 answer:
vitfil [10]3 years ago
6 0
<span>9 + (-4) - 6

<em>[open the bracket,  +(-) = - ]</em>
</span>= 9 - 4 - 6

<em>[Both operations required are -, work from left to right]</em>
= 5 - 6
= - 1
You might be interested in
What is 2 and 5/14 divided by (2 and 5/8 times 1 and 3/7)?
Lina20 [59]
(2 5/14) / (2 5/8 * 1 3/7)....turn them all into improper fractions
(33/14) / (21/8 * 10/7)
(33/14) / (105/28)...when dividing fractions, flip what u r dividing by, then multiply
33/14 * 28/105 = 132/210 reduces to 22/35 <==
3 0
3 years ago
Verify the identity. <br><br> sin (x+pi/2)=cos x
hram777 [196]
Given data 
<span>sin (x+pi/2)=cos x
</span>now using sin law
sin(a+b)=sin(a)cos(b)+cos(a)sin(b)
now using above values
sin(pi/2+x)=sin(pi/2)cos(x)+cos(pi/2)sin(x)
as we know that
sin(pi/2)=1
cos(pi/2)=0
now putting these values
sin(pi/2+x)=1*cosx+0*1
sin(pi/2+x)=cosx
hence proved that

<span>sin (x+pi/2)=cos x</span>
4 0
3 years ago
Which polynomial represents the sum below?
FromTheMoon [43]

Answer:          D. 8x² + x + 3

Sum means the answer to an addition problem. To find the sum of polynomials, we will add like terms.

<h2>What are like terms?</h2>

Like terms can be combined using addition or subtraction and have the same variables. Constants are also like terms with each other because they have no variables.

<h2>Solve</h2>

(4x² + 1) + (4x² + x + 2)      Starting equation from the question

= 4x² + 1 + 4x² + x + 2       Remove brackets

= 4x² + 4x² + x + 1 + 2       Rearrange to group like terms together

= 8x² + x + 1 + 2                Add like terms with the same 'x²' variables

= 8x² + x + 3                     Add like terms that are constants

Learn more about adding polynomials here:

brainly.com/question/1311115

6 0
1 year ago
There are 3 people in Lee's family
kap26 [50]

Answer:

9

Step-by-step explanation:

the range is the difference between the lowest and the highest number on the series

here the range is 3 two members have size 6 different from 6 and 3 which range its 3

8 0
2 years ago
Any system of government based on rule by the people is called
galina1969 [7]

Answer:

a democracy

I hope this helps!

7 0
3 years ago
Other questions:
  • How do you find the area of a square
    8·1 answer
  • Pls solve this as soon as possible
    12·1 answer
  • What number is diviscible by 2?
    15·2 answers
  • Please help this is do tomorrow
    12·2 answers
  • Please help me please
    8·2 answers
  • Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The filling processes can be assumed to be n
    11·1 answer
  • Antonio's Pizza shop earned a profit of $245,000 for this year. Last year they earned a profit of $315,000. What is the percent
    13·1 answer
  • Un inversionista desea comprar acciones de dos tipos. Las de tipo A generan un interés simple a razón de una tasa de 0,5 % mensu
    6·1 answer
  • Solve for v.<br> -8v+3(v-3) = 16
    9·2 answers
  • You bought 8 movie tickets for $x each. You spent a<br> total of $42 at the movies.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!