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
Vera_Pavlovna [14]
3 years ago
13

Simplify each expression by combining like terms. 7a - 6 + 8a ​

Mathematics
1 answer:
anygoal [31]3 years ago
5 0

=7a - 6 + 8

=7a + 8a - 6 =15a - 6

You might be interested in
What is the standard deviation of the following data set rounded to the nearest tenth? 56 ,78 ,123 , 34, 67, 91, 20
quester [9]

Answer:

The standard deviation of the following data set is 32.2

Step-by-step explanation:

step 1

Find the mean

we have

[56,78,123,34,67,9,20]

Sum the data and divided by the number of elements

[56+78+123+34+67+91+20]/7=469/7=67

step 2

For each number: subtract the Mean and square the result

[(56-67)^{2},(78-67)^{2},(123-67)^{2},(34-67)^{2},(67-67)^{2},(91-67)^{2},(20-67)^{2}]

[121,121,3,136,1,089,0,576,2,209]

step 3

Work out the mean of those squared differences

[121+121+3,136+1,089+0+576+2,209]/7=1,036

This value is called the "Variance"    

step 4

Take the square root of the variance

standard\ deviation=\sqrt{1,036}=32.2

6 0
3 years ago
Pls help with number 3
Arturiano [62]

Answer:

about 17

Step-by-step explanation:

side 1 =4

side 2=4

side 3=4

one of the slanted lines is about equal to 2 and the other is also about 2

but i rounded it to 17 because a slanted line is longer than one that is straight across

5 0
2 years ago
Read 2 more answers
I need help with this question. thanks.
Papessa [141]

Answer:

x<40

Step-by-step explanation:

x+10<50

x+10-10<50-10

x<40

8 0
2 years ago
How would I get to X. Please show work
Bond [772]
Well I can’t see where x would be therefore I can’t tell you how to get to x
7 0
3 years ago
123
ser-zykov [4K]

First, I'm going to separate factor the expression inside of the square root.

sqrt[ (2/18) * (x^5) ]

sqrt[ (1/9) * (x^5) ]

We can take the square root of 1/9 easily, because 1 and 9 are both perfect squares. The square root of 1/9 is 1/3.

Looking at the x^5, we can separate it into x^2 * x^2 * x^1. The square root of x^2 is x. So, we now also have an x^2 on the outside because there are two x^2s in our expanded form.

ANSWER: (x^2 * sqrt(x)) / 3

(Option 1)

Hope this helps!

4 0
3 years ago
Other questions:
  • What quadrilateral has opposite sides equal in length and parallel?
    7·2 answers
  • Determine whether or not f is a gradient vector field. if it is, find a function φ such that f = ∇φ. (if the vector field is not
    6·1 answer
  • Number between 61 and 107 that is multiple of 2,6 and 8
    8·2 answers
  • The sphere weighs 4 pounds. sorry no picture but you can ask me for it in the comments What is the weight of the cylinder? What
    9·1 answer
  • PLEASE HELP! BRAINLIEST! So desperate
    11·2 answers
  • Find the median of the data.<br> 12, 33, 18, 28, 29, 12, 17, 4, 2<br> The median is
    6·2 answers
  • Is this a function? Explain with full sentence<br> [(2,3) (2,4) (2,5) (2,3)]
    12·2 answers
  • How do you simplify numeric and algebraic expressions that contain exponents?
    15·2 answers
  • Solve variable 3/4x-5=7
    8·1 answer
  • Please i need it for now PLSSSS
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!