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
sineoko [7]
3 years ago
14

Hello, I know this isn’t a homework question but I am not able to skip this activity right here and I can’t seem to find out why

. The guy speaking kept saying “Use the tool to help solve the linear system of equations” but I can’t seem to understand what tool . Is this some sort of glitch?

Mathematics
1 answer:
tangare [24]3 years ago
5 0

Answer:

This is more of a computer kind of thing, but try clicking the next thing at the bottom.

Step-by-step explanation:

You might be interested in
4/5 + r=-3<br><br> What is the answer to this equation?
Zolol [24]

Answer:

r= -19/5

Step-by-step explanation:

6 0
3 years ago
2. Determine the sum of the first 400 ODD numbers.<br><br>​
il63 [147K]

Odd numbers take the form 2n-1, where n\ge1 is an integer. When n=400, the last odd number would be 799. So we're adding

S=1+3+5+\cdots+795+797+799

By reversing the order of terms, we have

S=799+797+795+\cdots+5+3+1

and we can pair up terms in both sums at the same position to write

2S=(1+799)+(3+797)+(5+795)+\cdots(795+5)+(797+3)+(799+1)

so that we are basically adding 400 copies of 800, and from there we can find the value of the sum right away:

2S=400\cdot800\implies S=160,000

###

We could also make use of the formulas,

\displaystyle\sum_{i=1}^n1=n

\displaystyle\sum_{i=1}^ni=\dfrac{n(n+1)}2

We have

S=\displaystyle\sum_{i=1}^{400}(2i-1)=2\sum_{i=1}^{400}i-\sum_{i=1}^{400}1=400(400+1)-400=400^2=160,000

3 0
3 years ago
What is the answer to the equation 5+2(x-1)=12
S_A_V [24]
5+2(x-1)=12 \\ \\ 2 ( x - 1) = 12 - 5 \ / \ subtract \ 5 \ from \ each \ side \\ \\ 2(x - 1) = 7 \ / \ simplify \\ \\ x - 1 =  \frac{7}{2} \ / \ divide \ each \ side \ by \ 2 \\ \\ x =  \frac{7}{2}  + 1 \ / \ add \ 1 \ to \ each \ side \\ \\ x =  \frac{9}{2} \ / \ simplify \\ \\

So, the answer to this problem is x = 9/2 or x = 4.5.
3 0
3 years ago
Read 2 more answers
On a coordinate plane, a line is drawn from point J to point K. Point J is at (1, negative 10) and point K is at point (7, 2). W
Airida [17]

Answer:

5

Step-by-step explanation:

lol

4 0
3 years ago
Which statement best describes the data set?
julia-pushkina [17]

Answer:it is neither accurate nor precise

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • There were 700 people in the auditorium. 60% of them were adults and the rest were children. how many adults were in the auditor
    13·1 answer
  • Solve the equation for x.<br> X +9= -11
    11·2 answers
  • OI<br> I<br> NEED<br> HELP<br> PLOZ<br> COME<br> OVER<br> HERE<br> AND<br> HELP<br> ME
    15·2 answers
  • . Whats The Mean Price Per Gallon Of Milk??
    12·1 answer
  • A. Find the mean median and mode of the data.
    5·1 answer
  • Admira is painting a rectangular banner 2 1/4 yards wide on a wall in the cafeteria. The Banner will have a blue background. Adm
    5·1 answer
  • You are ordering a new home theater system that consists of a TV, surround sound system, and DVD player. You can choose from 14
    6·2 answers
  • An animal shelter has a ratio of cats to dogs that is 9:7.
    14·1 answer
  • Question 12 Multiple Choice Worth 1 points)
    10·1 answer
  • Ali takes a full-time position as a makeup artist in Atlanta. Her starting salary is $29,000. Her taxes are 28%. What is her net
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!