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IgorC [24]
3 years ago
11

Rachel frank and Austin sent a total of 68 text messages during the weekend Rachel sent 7 fewer messages than Austin frank sent

3 times as many messages as Australia how many messages did they each have
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:I think 183

Step-by-step explanation:

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Someone please help me with the question attached!!
Crank

Answer:

D

Step-by-step explanation:

use desmos graphing calculator to find your answer easier. just put in the equation and the calculator will do the rest

8 0
2 years ago
What is the difference between the following two regression​ equations? Choose the correct answer below.
olga55 [171]

Answer:

The correct option is (A). The first equation is for sample​ data; the second equation is for a population.

Step-by-step explanation:

According to the scenario, the following would be represented as a sample and the population

Y with caret = b0 + b1x = sample

and

y = b0 + b1x =  population

It is because if we considered the population than the expected value would be nearest and there is no need to determine the b0 and b1 value again. But in the case of the sample, the reestimation of the values would be determined again and again

Therefore the correct option is A.

8 0
3 years ago
The four vertices of a rectangle drawn on a complex plane are defined by 1 + 4i, -2 + 4i, -2 – 3i, and 1 – 3i. The area of the r
kompoz [17]
The rectangle is 1-(-2) = 3 units in the real direction and 4i-(-3i) = 7 units in the imaginary direction. Its area is 3×7 = 21 square units.
7 0
2 years ago
Read 2 more answers
Please explain the steps to this problem
crimeas [40]
Make the denominators the same number. Then do the problem as you would regularly without fractions
5 0
3 years ago
A cannonball is shot straight up into the air. The height of the cannonball at time t is represented by the function f(t)=−16t^2
Karo-lina-s [1.5K]

Answer:

the initial height of the cannon ball

Step-by-step explanation:

- Time (t) is basically how many seconds or minutes you factor into the given function. 16(time in exact seconds or minutes)^2+40(time in exact seconds or minutes) +5

- The +5 can only be where the cannonball was initially fired from logically. The Velocity formula is already there for you to plug the time into^^^


(I used time in minutes/seconds to try and explain what the function is asking)

8 0
2 years ago
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