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
lesya692 [45]
3 years ago
9

Solve the problem -22.9 + 42.0

Mathematics
1 answer:
Yakvenalex [24]3 years ago
6 0
19.1 Hope this helps a lot
You might be interested in
A student solved a quadratic equation as shown here:
djverab [1.8K]

Answer:

x = 3/2 or x = -4

Step-by-step explanation:

The identifiable error the students have is that before the left hand side of the equation is factorized, the right hand side value of 12 ought to be brought to the left hand side, leaving a net value of zero on the right hand side. Then whatever is factored  on the left hand side is then equated to zero and then we can find the two values of x after setting each of the individual factors to zero

We proceed as follows;

2x^{2} + 5x = 12\\2x^{2} + 5x - 12 = 0\\2x^{2} + 8x -3x -12 = 0\\2x(x+4) -3(x+4) = 0\\(2x-3)(x+4) = 0\\2x-3 = 0 or x+4 =0\\2x=3 or x=-4\\x = 3/2 or x= -4\\x = 1.5 or- 4

6 0
3 years ago
Differentiate x^2/4-x^3​
Ede4ka [16]

Answer:

  x^4 + 8x          

  -----------------

    (4-x^3)^2

Step-by-step explanation:

d /dx  (x^2/(4-x^3)​)

When we differentiate a fraction u/v

df/dx = u/v

         =  v du/dx-u dv/dx

           ---------------------------

                         v^2

we know u = x^2   so du/dx = 2x

               v = (4-x^3)  so dv/dx = -3x^2

d dx =   (4-x^3) (2x)- x^2 ( -3x^2)

           -------------------------------------

                   (4-x^3)^2

Combining terms

           (8x-2x^4) --3x^4

           -------------------------------------

                   (4-x^3)^2

           8x-2x^4 +3x^4

           -------------------------------------

                   (4-x^3)^2

             x^4 + 8x          

           -------------------------------------

                   (4-x^3)^2

8 0
3 years ago
Which of the following points is shown in the graph below?
djverab [1.8K]

Answer:

Step-by-step explanation:

Comment

  • Only the x is minus. You know this because if you rotate the x axis 90 degrees clockwise, the plus axis will be on your right and the minus part of the axis on your left.
  • The other 2 (y and z) are positive.
  • All answers give - 4 in their choices. You are not helped much by -4
  • y is on your left right now. That is the plus direction so y = 5
  • z is 6 units up, so it is positive.

Answer (-4,5,6)

B

4 0
2 years ago
Complete the pattern 5, 9, 17, 33, ____, 129
k0ka [10]
The answer should be 65.  The number be added is doubled.  +4,+8, +16, +32 So 32+33=65       65+64=129
7 0
3 years ago
Election day is less than a month away, and political analysts are focused on the races for two statewide political offices. Acc
ExtremeBDS [4]

Answer:

0.1961

Step-by-step explanation:

Since these two probabilities are independent of each other, we can simply multiply them.

The probability that a voter will support the Democratic candidate for governor is 0.53.

The probability that a voter will support the Democratic candidate for attorney general is 0.37.

This makes the probability that a voter supports both Democratic candidates 0.53(0.37) = 0.1961.

8 0
3 years ago
Other questions:
  • Bruce has a bottle that contains 60% lemon juice and the rest water. The bottle has 1 liter of water. Part A: Write an equation
    14·1 answer
  • What is the approximate volume of the sphere?
    15·2 answers
  • Help with this question please!!
    13·1 answer
  • Explain how estimating helps you check the reasonableness of your answer
    6·1 answer
  • A subway vending machine offers a bonus on
    5·1 answer
  • Explain why it would be silly to write y is directly proportional to 3x
    11·1 answer
  • On Wednesday, the temperature changes -30 each hour for 10 hours.
    10·2 answers
  • The length of a rectangle is 6 centimeters less than the width. The perimeter is 206 centimeters. Find the width and the length.
    8·1 answer
  • What is 2222+(345.234) then divided by 22 Will give brainlyest
    10·1 answer
  • bailey shaded this model select one number from each column to show the parts of the model bailey shaded.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!