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
tatiyna
2 years ago
12

hello everyone I'm stuck on these last 2 questions pleaseeee help me<3 ill do anything to have these 2 done asap just let me

know!!

Mathematics
1 answer:
ruslelena [56]2 years ago
4 0
Hahxbshx. i a la otra semana no me
You might be interested in
PLEASE HELP!!!!! What is the value of x in the matrix equation below?
Brums [2.3K]

The given matrix equation is,

1.5\left[\begin{array}{cc}x&6\\8&4\end{array}\right] +y\left[\begin{array}{cc}1&4\\3&2\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right].

Multiplying the matrices with the scalars, the given equation becomes,

\left[\begin{array}{cc}1.5x&9\\12&6\end{array}\right] +\left[\begin{array}{cc}y&4y\\3y&2y\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]  \\

Adding the matrices,

\left[\begin{array}{cc}1.5x+y&9+4y\\12+3y&6+2y\end{array}\right]  =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]  \\

Matrix equality gives,

1.5x+y=z\\ 9+4y=z\\ 12+3y=6z\\ 6+2y=2

Solving the equations together,

y=-2\\ 3y-1.5x=9\\ -1.5x=9+6\\ x=-10

We can see that the equations are not consistent.

There is no solution.

3 0
3 years ago
Im to lazy for math can u help me please?
riadik2000 [5.3K]

Answer:

he spent $68 without the fees and $32 on fees

Step-by-step explanation:

8 0
2 years ago
The sum of two numbers is twenty-four. The difference of the two numbers is four.
RSB [31]

Answer:

x + y = 24

x - y = 4

Now, add these two equations.

You get,

2x = 28

x =  \frac{28}{2}

x = 14

Given,

x + y = 24

14 + y = 24

y = 24 - 14

y = 10

You can test this to the other equation as well.

x - y = 4

14 - 10 = 4

Hence, the two numbers are 14 and 10.

3 0
2 years ago
If a given data point is (1,4) and the line of best fit is y = 1.5x + 3.25, what's the residual value?
Svetlanka [38]

Answer:

The residual value is -0.75

Step-by-step explanation:

we know that  

The residual value is the observed value minus the predicted value.

RESIDUAL VALUE=[OBSERVED VALUE-PREDICTED VALUE]

where

Predicted value.--> the predicted value given the current regression equation

Observed value. --> The observed value for the dependent variable.

in this problem

we have the point (1,4)

so

The observed value is 4

<em>Find the predicted value  for x=1 </em>

y =1.5(1)+3.25=4.75

predicted value is 4.75

so

RESIDUAL VALUE=(4-4.75)=-0.75

4 0
3 years ago
FIND THE VOLUME OF THE SPHERE!
Alexxx [7]

Answer:

v= 1.7in

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • The product of twice a number and two is the same as the difference of three times the number and 1/2. find the number.
    5·1 answer
  • Abdul was scuba diving 76 feet below the surface of the ocean. To get a closer look at a school of fish, he swam up 28 feet
    13·2 answers
  • Can someone help ASAP plzz
    8·2 answers
  • Need help tremendously:)!!
    12·1 answer
  • I'll give the usual stuff of brainliest and thanks to the first person, plus some extra points.
    12·1 answer
  • Please can you help meeee,
    6·1 answer
  • Factor each expression into its simplest form<br> 2x+8
    14·2 answers
  • Is this right? I’m currently taking an assessment and I need to make sure I am right.
    8·2 answers
  • What is the intercept
    14·1 answer
  • Detailed explanation please! (will give Brainliest)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!