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3 years ago

2. Kimberly scored a total of 35.08 points

Mathematics

1 answer:

vaieri [72.5K]3 years ago

3 0

Your going to divide them then take the same score and double it then subtract the total and the doubles number

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Rectangle ABCD with coordinates A(1,1), B(4,1), (4,2), and D(1.2) dilates with respect to the origin to give rectangle A'BCD. If

Doss [256]

Answer:

Step-by-step explanation:

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4 years ago

Use the given data to find the best predicted value of the response variable. Ten pairs of data yield requals0.003 and the regre

Arada [10]

Answer:

$\hat y=3(2) +2=8$

Step-by-step explanation:

Data given

r=0.003 represent the correlation coefficient

$bar y =5$ represent the sample mean for the y observations

Solution to the problem

We assume that they use least squares in order to find the best regression model. The slope is given by the following formula:

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

And the slope on this case is:

$m=3$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=5$

$\bar y= \frac{\sum y_i}{n}$

And we can find the intercept using this:

$b=\bar y -m \bar x=5-(3*\bar x)=2$

So the line would be given by:

$\hat y=3x +2$

And the best predicted value for x=2 would be:

$\hat y=3(2) +2=8$

3 0

3 years ago

Tom earns $3.25 per hour at the car wash plus $1.50 for each car he washes. If he wishes to earn at least $100 on a busy weekend

sp2606 [1]

Answer:

41, I did simple math

5 0

3 years ago

E^x is greater than or equal to 25

kotykmax [81]

Greater than because i honestly don’t know

4 0

3 years ago

HELP NEEDED ASAP!!

marin [14]

Answer:

a. 0.43*125=

53.75

b. this is a little harder we need to find what the conversane is for ec to us

ec 0.43= 1 tt so

6.3*0.43

2.71 ec=1 us

850.94 divided by 2.71

314 us

Hope This Helps!!!

5 0

2 years ago