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
Ostrovityanka [42]
3 years ago
9

() = () ( + ) = () − ( + ) = () − () = () = () =?

Mathematics
1 answer:
lubasha [3.4K]3 years ago
7 0

Answer:

idk

Step-by-step explanation:

You might be interested in
How long does it take for a simple with total number n to decay to 1/3n?
Vlada [557]
<span>Income earned over one year is principal * int rate so we have 0.12*A + 0.13*B +0.14*C = 400 and A + B + C = 3000 and A+B = C</span>
7 0
3 years ago
We are interested in the amount that students study per week. Suppose you collected the following data in hours {4.4, 5.2, 6.4,
olga nikolaevna [1]

Answer:

Step-by-step explanation:

Hello!

The objective is to estimate the average time a student studies per week.

A sample of 8 students was taken and the time they spent studying in one week was recorded.

4.4, 5.2, 6.4, 6.8, 7.1, 7.3, 8.3, 8.4

n= 8

X[bar]= ∑X/n= 53.9/8= 6.7375 ≅ 6.74

S²= 1/(n-1)*[∑X²-(∑X)²/n]= 1/7*[376.75-(53.9²)/8]= 1.94

S= 1.39

Assuming that the variable "weekly time a student spends studying" has a normal distribution, since the sample is small, the statistic to use to perform the estimation is the student's t, the formula for the interval is:

X[bar] ± t_{n-1;1-\alpha /2}* (S/√n)

t_{n-1;1-\alpha /2}= t_{7;0.975}= 2.365

6.74 ± 2.365 * (1.36/√8)

[5.6;7.88]

Using a confidence level of 95% you'd expect that the average time a student spends studying per week is contained by the interval [5.6;7.88]

I hope this helps!

3 0
3 years ago
Read 2 more answers
Can 1,2,5 form a right triangle​
malfutka [58]
No 1+2=3 which is less than 5
The two sides must equal more than the third one when added
8 0
3 years ago
Is it Giveaway time?<br><br><br> Why are you making me add more text :/
givi [52]
I hope it is giveaway time cause I need points
7 0
3 years ago
Read 2 more answers
How many solutions exist for the mixed-degree system graphed below?
LUCKY_DIMON [66]

Answer:

one solution

Step-by-step explanation:

The number of solutions is how many times the two graphs intersect

These two graphs intersect one time

8 0
3 years ago
Other questions:
  • What single decimal multiplier would you use to increase by 18% followed by a<br> 12% decrease?
    7·1 answer
  • Anyone can help me out on this? :)
    15·1 answer
  • For the girl to lift this rock, she must push down with a force _____.
    15·1 answer
  • Which of the following units for mass is a SI unit
    6·2 answers
  • What is the sum of the solutions of 2x [×-1]-4=-2
    8·2 answers
  • What is the median of this data set?
    12·1 answer
  • Write and simplify the expression
    5·1 answer
  • the football team has 4 freshman, 7 sophomores, 10 juniors, and 15 seniors. two players will be chosen at random to participate
    6·1 answer
  • Write an equation in point-slope form of the line that passes through the given point and has the given slope. (3, 2); m = 2/3
    14·1 answer
  • The length of a rectangle is 5 yd more than twice the width x. The area is 900 yd?.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!