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
9966 [12]
3 years ago
5

Which expression is not equivalent to the other expressions?

Mathematics
1 answer:
Paul [167]3 years ago
4 0
-6(2x - 4) =  -6*(2x) -6*(-4) = -12x + 24

-(12x - 6) + 18 = -12x + 6 + 18 =  -12x + 24

-3(4x - 3) + 15  = -3*(4x) -3*(-3) + 15 = -12x + 9 + 24 = -12x + 24

-4(3x + 6) = -4*(3x) -4*(6) = -12x -24

All the expressions gave the same answer as -12x + 24, except for the last expression.

So, -4(3x + 6)  is not equivalent to the others.
You might be interested in
Jacob is buying a bag of grass seed. The two-pound bag will cover 1,000 square feet of lawn Estimate the side length of the larg
Maurinko [17]

The side length of the largest square Jacob could seed if he purchases 5 bags is 70.71feet.

The formula for the area of square is given by,

                      Area =  (side)2 = s2

         Where, s = length of the side of a square  

Now according to the question we have been given that 1 bag will cover 1000 square feet of lawn.

And Jacob bought 5 of those bags. First we will find how many square feet of lawn can be covered by these 5 bags.

Therefore,                      1bag = 1000 sq.ft

                                        5 bag = 5*1000sq.ft

                                                   = 5000sq.ft

Thus 5 bags will cover 5000sq.ft of lawn which will be equal to the area of the lawn

That is, Area of the lawn = Area covered by the 5 bags.

                           Area = 5000sq.ft

Putting the value of area in equation (1) we get,

                           5000 = s2

               Or,  s2 = 5000

                      s = √5000

                       s = 70.71ft

Hence the side length of the square lawn will be 70.71ft.

Learn more about area of square here : https://brainly.in/question/48541960

#SPJ9

5 0
2 years ago
Solve for m:<br> 2 (m + 7) = -4- m<br> Your answer
Leokris [45]

Answer:

m = -6

Step-by-step explanation:

2 (m + 7) = -4 - m

2m + 14 = -4 - m

3m + 14 = -4

3m = -18

m = -6

Hopefully this helps!

Brainliest please?

8 0
3 years ago
Read 2 more answers
Look at the two equations:
marin [14]
Subtract 6 from both sides, leaving only 3x on one side and 15 on the other. divide 15 by 3 and get 5 for x. 3(5)+6=21
4 0
4 years ago
Find the mean and the median of this data set: 9, 6, 5, 3, 28, 6, 4, 7
Ugo [173]

Answer:

The means is 8.5 The Median is 6

Step-by-step explanation:

1) to find the mean just Simply add all the numbers together and divided by how many numbers that is giving. (Because you are simply finding the average)

9+6+5+3+28+6+4+7=68

68 divided by 8 = 8.5

2) to find the median simply organize the numbers from least to greatest Like this: (3,4,5,6,6,7,9,28) Then keep crossing out from both sides teal you find the middle Number.

If there a odd amount of number the median will be one Number, if even 2 numbers ( if 2 numbers just add them both and divide by 2)

In This Case the Median is 6,6 but Its actually 6 Why (6+6=12) and (12/2=6) so your median is 6.

<em>Hopes This helps!</em>

8 0
3 years ago
Read 2 more answers
On a particular day, the wind added 5 miles per hour to Alfonso's rate when he was cycling with the wind and subtracted 5 miles
Nata [24]

now, this is pretty much the same as the one before it with Jaime, so I'll do this without much fuss.

recall d = rt.

a = Alfonso's rate

with the wind his speed is a + 5, against it is a - 5, 60 miles with it and 30 miles against it, all in the same time of t hours.

\bf \begin{array}{lcccl} &\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\ &------&------&------\\ \textit{with the wind}&60&a+5&t\\ \textit{against the wind}&30&a-4&t \end{array} \\\\\\ \begin{cases} 60=(a+5)t\implies \frac{60}{a+5}=\boxed{t}\\\\ 30=(a-4)t\\ -------------\\ 30=(a-4)\left( \boxed{\frac{60}{a+5}} \right) \end{cases} \\\\\\ 30(a+5)=(a-4)60\implies 30a+150=60a-240 \\\\\\ 390=30a\implies \cfrac{390}{30}=a\implies 13=a

8 0
3 years ago
Other questions:
  • Write the following numbers used in these statements in scientific notation. (Note: Some of these numbers have been rounded.)
    6·1 answer
  • Find the x- and y-intercepts of y=35x+4.
    5·1 answer
  • A jet plane costs an airline $69,500,000. What is<br> the place value of the digit 5 in this number?
    8·1 answer
  • While testing a new vaccine, a lab technician noticed that the number of bacteria reduced by half every minute. How long does it
    9·1 answer
  • When the members of a family discussed where their annual reunion should take​ place, they found that out of all the family​ mem
    15·1 answer
  • I need this question quick please
    11·1 answer
  • Anyone know this try and help out
    6·2 answers
  • Solve 3x - 5 = 16<br> Write your solution starting with x= .
    8·2 answers
  • Pls help me with this question
    5·1 answer
  • Which fraction is between 1/2 and 3/4
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!