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
Volgvan
2 years ago
12

Please help me understand how to do this with an easy explanation

Mathematics
2 answers:
ASHA 777 [7]2 years ago
7 0

Answer:

10 and 10

Step-by-step explanation:

So for the first one, 1-(-9), the two subtraction signs cancel each other out and are turned into an addition symbol. The new equation would now be the absolute value of 1 + 9. As we know, 1 + 9 is 10, and the absolute value of 10 is 10. <u>The absolute value just means how many spaces the number is away from 0, and it will always be positive.</u>

<u></u>

For the second one, -9 -1 would equal -10. Even though -10 is negative, the absolute value will always be positive, so<u> the absolute value of the second one is also 10.</u>

<u></u>

Hope this helps and let me know about any questions!

Blizzard [7]2 years ago
5 0
10 for both have a good day
You might be interested in
(2)/(7):0.6x=(4)/(21):0.25
inysia [295]

Answer:

 =  1.6

Unless you meant to clarify what in the equation you needed, but that is the answer to it.

7 0
3 years ago
Graph F(x)=32x+2. Please
olga2289 [7]

Answer:

The required graph is shown below:

Step-by-step explanation:

Consider the provided graph f(x)=32x+2

The above function is a linear function.

We can draw the graph of the linear function with the help of two points.

Substitute x = 0 in f(x)=32x+2

f(0)=32(0)+2

f(0)=2

Hence, the coordinates are (0,2)

Substitute f(x) = 0 in f(x)=32x+2

0=32x+2

32x=-2

x=-0.0625

Hence, the coordinates are (-0.0625,0)

Now join the above points.

The required graph is shown below:

5 0
3 years ago
Read 2 more answers
Which property is used to write a(x + y) = ax + ay
stealth61 [152]
The Distributive Property. You are distributing a to x + y.

Hope this helps!
3 0
3 years ago
Read 2 more answers
There is another way to rank the difficulty of test questions using Networks: Each student gives scores for each problem, then w
Vlad [161]

Answer:

Step-by-step explanation:

Truly, on a single student level, the Massey method can be applied i.e. problems are ranked according to their level of difficulty for a single student.

Let us say there are 4 problems P1, P2, P3, P4 set in an exam where a student has to solve any two.

Assuming student 1 solves and scores more in P1 than in P2, r1>r2

student 2  more in P1 than P4 r1>r4

student 3 more in P2 than P4 r2>r4

student 4 more in P4 than P3 r4>r3

student 5 more in P2 than P3 r2>r3

and such many more cases.

then the Massey's model can be written as

P1 P2 P3  P4

\begin{bmatrix} 1 &-1 &0 &0\\ 1 &-1 &0 &0 \\ 0 &1 & 0 &-1 \\ 0 & 0 &-1 & 1 \\ 0 & 1 & -1 & 0 \end{bmatrix}.

\times \begin{bmatrix}r1 \\r2 \\r3 \\r4 \end{bmatrix}  =

\begin{bmatrix}y_{1} \\ y_{2} \\ y_{3} \\ y_{4}\\ y_{5}\end{bmatrix}.            

If Pi gives more score than Pj, the entry below Pi shall be 1 and below Pj shall be -1.

The rest of the entries shall be 0.

r1,r2,r3,r4,r5 are ranks .  

There may be more rows depending upon more combination of 2 problems.

Should in case more than one student solve the same combination and get scores in the same order, for instance, 12 students solve P1 and P2, for 7 of them r1>r2, then their scores can be averaged.

Normally, such systems are overdetermined, i.e., more rows than the number of unknowns, then it is solved by the Least square method ., as there shall be no a solution with least error is found out.

The overall ranking, in reverse order, shall give the ranking according to increasing difficulty.

7 0
3 years ago
Use the diagram to find the measure of each of the angles.
just olya [345]
Angle AQB is x = 90

Angle ASB is x = 90

Angle ALB is x = 90

Angle ATB is x = 90

Angle ARB is x = 90

<span>BWD is x < 90</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • A company donates money to a charity every time the baseball team hits a home run. They donate ​$450 for every home run. Write a
    5·1 answer
  • Over a two-hour time period, a snail moved 108 inches. How far is this in yards?
    13·1 answer
  • Country Workshop manufactures both finished and unfinished furniture for the home. The estimated quantities demanded each week o
    7·1 answer
  • Complete the following definition.
    7·1 answer
  • (A)+(B)=8 I need help for this question please, and thanks. :) 10 pts!!
    9·1 answer
  • 100 points for the CORRECT ANSWER
    11·2 answers
  • A puppy weighs 2.8 pounds at birth and gains about .5 pounds per week. A kitten weighs 1.4 pounds at birth and gains about 1.2 p
    15·1 answer
  • What is the area of the triangle? ​
    5·2 answers
  • Which of the following equations is quadratic?
    12·1 answer
  • 1. Two students are reading a novel. Ashely reads 10 pages a day. Carly reads 8 pages a day, but he starts sooner and has alread
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!