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
MA_775_DIABLO [31]
3 years ago
9

Which expression is equivalent to -42 x -1.5

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
8 0

Answer:

7*-6x-1.5

Step-by-step explanation:

Schach [20]3 years ago
4 0

Answer:

beesechuurger

Step-by-step explanation:

You might be interested in
What is 4(5n-7)=10n+2?variables on both sides
forsale [732]

Example:

About "Solving equations with variables on both sides"

Solving equations with variables on both sides :

To solve equations with variables on both sides, we have to bring the variables to the left side of equal sign and the numbers which or not having the variables, that is constants to the right side of equal sign.

Solving Equations with Variables on Both Sides - Steps

Step 1 :

Use the Distributive Property to remove the grouping symbols.

Step 2 :

Simplify the expressions on each side of the equals sign.

Step 3 :

Use the Addition and/or Subtraction Properties of Equality to get the variables on one side of the equals sign and the numbers without variables on the other side of the equals sign.

Step 4 :

Simplify the expressions on each side of the equals sign.

Step 5 :

Use the Multiplication or Division Property of Equality to solve.

If the solution results in a false statement, there is no solution of the equation.

If the solution results in an identity, the solution is all numbers.

Solving Equations with Variables on Both Sides -Examples

Example 1 :

Solve the following equation. Then check the solution.

5t - 9  =  -3t + 7

Solution :

5t - 9  =  -3t + 7

In order to get rid of -3t, we have to add 3t on both sides.

5t + 3t - 9  =  -3t + 3t + 7

8t - 9  =  7

In order to get rid of -9, add 9 on both sides

8t - 9 + 9  =  7 + 9

8t  =  16

Divide by 8 on both sides

8t/8  =  16/8

t  =  2

Hope this helps you understand better!

(It is not the answer but it is an example so hope this helps and please give me Brainliest)

3 0
4 years ago
While taking a test, a student is asked to calculate a probability. He writes his answer as "2.5," not intending it to mean "2.5
Georgia [21]

Answer: The answer is not correct

Step-by-step explanation: probability cannot be greater than 1

3 0
3 years ago
PLZ HELP ME >>>>>>THANKYOU
Aleonysh [2.5K]

Step-by-step explanation:

There are two commonly recognized beginner methods to solve a system of equations.  The first is elimination and the second is substitution.  I will go over both of them here.

Substitution:

y=-2x-9, y=-5x-21

-2x-9 = -5x -21

3x=-12

x=-4

y=-5(-4)-21

y=-1

Elimination:

This method is a bit hard to explain without visual aid, but I'll try my best :)

In elimination you can subtract each value with a common variable from its counterpart in the other equation.  For this example, subtract y-y to get 0, -2x - (-5x) to get 3x, and -9 - (-21) to get 12.

Thus,

-12=3x

x=-4

y=-5(-4)-21

y=-1

Hope it helps and lmk if you need more help <3 :D

4 0
3 years ago
A ball is thrown into the air. The height h, in feet, of the ball after x seconds is given by the function h = −16(x − 2)2 + 72.
Annette [7]

Answer:

Step-by-step explanation:

h = −16(x − 2)² + 72

 =  −16((x − 2)(x − 2)) + 72                   expand the square  (x - 2)² =  (x - 2)(x - x)

 =  -16 ((x)(x) + (x)(-2) + (-2)(x) + (-2)(-2)) + 72

  = -16 (x² + (-2x) + (-2x) + (4) ) + 72

  = -16 (x² + (-4x)  + (4) ) + 72

  = -16 (x² - 4x  + 4 ) + 72

  = (-16)(x²) + (-16)(-4x) +(-16)(4) + 72

  =   -16x²  + 64x  - 64 + 72

  =   -16x²  + 64x  + 8              My guess is D   ; 72 ???

I have no clue what the  ; 72 means after the given answer.  It must be a standard form thing I never learned.

4 0
3 years ago
Read 2 more answers
Write three equivalent ratios for the given ratio.<br>7. 12​
777dan777 [17]

Answer:

Step-by-step explanation:

7/12

1)7*2/12*2  = 14/24

2) 7*3 / 12*3 = 21/36

3) 7*4/12*4 = 28/48

6 0
3 years ago
Other questions:
  • In a smoking cessation program, over 2000 smokers who were trying to quit were randomly assigned to either a group program or an
    15·1 answer
  • Which set of ordered pairs can be used to graph y = –2x – 1?
    13·1 answer
  • If (2 − 3i) + (x + yi) = 6, what is x + yi?<br><br> i really need help with these
    9·2 answers
  • One lap around a dirt track is 1/3 miles. it takes Bryce 1/9 hour to ride one lap. what is bryce's unit rate ,in miles,around th
    6·1 answer
  • Samantha drove 440 km in 5 hours. She drove part of the way at 80 km/h and the rest at 100 km/h. What distance did she drive at
    10·1 answer
  • Your neighbor pays you $17 for every 2 hours you work.You work for 8 hours on Saturday.How much does your neighbor owe you
    6·2 answers
  • Rina’s retirement party costs $2 for every guest she invites. If there are 9 guests, how much Rina’s reticent party cost ?
    8·1 answer
  • Which equation represents a line which is parallel to the line y=1/2x + 2​
    10·1 answer
  • Please help <br> Will mark brainliest <br> If the slop is -1/2 how does the slope tell you to move
    7·1 answer
  • Please answer correctly !!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!