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
irina1246 [14]
3 years ago
7

As part of a science experiment, Sam recorded the four values shown in the table, but one of them got smudged on his paper. He r

emembers that the sum of the trials was −1. What was the value that was smudged?
Trials
−9
12
(smudged)
−8

A) 2

B) −2

C) −4

D) 4
Mathematics
1 answer:
Readme [11.4K]3 years ago
3 0

Answer:

C

Step-by-step explanation:

ok so sam started with 0 and got -9 then he got 12 then the next known number is -8 so those three numbers together are -5 and the end result was -1 so -1 minus -5 is -4 therefore the anser is C

You might be interested in
How many variables can there be ?
Yakvenalex [24]

Answer:

Step-by-step explanation:I am pretty sure that there can be as much as possible depending on how it is written in the word problem.

5 0
3 years ago
Create an equation from the model that describes the relationship between the weights on each side of the scale. Enter the corre
miskamm [114]
Combining the operations
The allowed operations are:

Add the same amount to both sides (either x's or ones)
Subtract the same amount from both sides (either x's or ones)
Multiply both sides by the same number (but not by zero)
Divide both sides by the same number (but not by zero)
(There are others, too, but they are not needed in simple equations.)

The goal is to FIRST add and subtract until we have ONLY x's (blocks) on one side and ONLY ones (circles) on the other. Then, if you have more than one block, you need to divide so as to arrive to the situation with only one block on the one side, which is the solved equation!
5 0
3 years ago
Read 2 more answers
Suppose your​ friend's parents invest 15,000 in an account paying 7% compounded annually. What will the balance be after 5 ​year
meriva

Answer:

FV= $21,038.28

Step-by-step explanation:

Giving the following information:

Initial investment (PV)= $15,000

Interest rate (i)= 7% compounded annually

Number of periods (n)= 5

<u>To calculate the future value (FV), we need to use the following formula:</u>

FV= PV*(1 + i)^n

FV= 15,000*(1.07^5)

FV= $21,038.28

6 0
2 years ago
Is 0.84 less than greater than or equal to one half
Neporo4naja [7]
One half is 0.50, so compare 0.84 to 0.50.  Which is true?

0.84 is greater than 0.50
0.84 equals 0.50
0.84 is less than 0.50.

8 0
3 years ago
Read 2 more answers
Factor:<br><br> 4x^6+4x-12= _________
lana [24]
The answer would be 4(x^6+x-3)
4 0
2 years ago
Read 2 more answers
Other questions:
  • Katie is building barn, as shown. She wants the roof height to be between 4 and 6 feet. She must decide the angle measure to use
    10·1 answer
  • Compute the mean, variance, and standard deviation for the following data set. Round all answers to the nearest tenth. {85,95,90
    9·1 answer
  • What's more selfish? Committing Death or forcing someone to stay in a world where they are so unhappy?
    9·2 answers
  • Kyla made a wooden box that she wants to paint blue. The box is in the shape of a cube and has an edge length of 4.75 in. How mu
    14·1 answer
  • I need help with 5 and 6 please what is M and B?
    9·2 answers
  • Need help on this. I would appreciate it a lot!
    15·1 answer
  • Make p the subject of the formula q-2p=p+4
    14·1 answer
  • Why did Americans begin to change their mind about the war?
    11·2 answers
  • Use the following function rule to find f(2).<br> f(x)=7^x -5<br> f(2)=
    11·1 answer
  • Perimeter of a triangle (combine like terms)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!