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2 years ago

8

a jar of coins totalingg 4.58 contains 12 qaurters and five nickles. there are twice as any pennies as there is dimes. how many

dims are there

1 answer:

Marat540 [252]2 years ago

7 0

Answer: there are 9 dims

Step-by-step explanation:

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6. Find the coordinates of A if M-1, 2) is the midpoint of AB and B<br> has coordinates of (3.-5).

AlekseyPX

Answer:

A(-5,9)

Step-by-step explanation:

Let A(a,b)

Since M is the midpoint then of A(a,b) and B(3,-5) then

M( (a+3)/2 , (b-5)/2)

But it is given that M(-1,2)

So (a+3)/2 = -1 which implies a=-5

and (b-5)/2=2 which implies b=9.

Therefore A(-5,9)

4 0

3 years ago

Using the data below, what is the equation for the line of best fit? Remember, put your answer in y = ax + b form and round any

ratelena [41]

If we fit the data as calories as a function of wt loss/week, we need to arrange the data first from lowest to highest wt loss/week lbs and calories. Then, the set of points can be plotted in a graph and a graphical method of line fitting can be used. Curve fitting programs (which are also in the calculator) can be used. The result is:
y = -266.5741x + 2246.5116

The value of R² is 0.7109. The fit is not very good since R² is quite far from 0.99.

5 0

3 years ago

What is the standard deviation of 52,61,31,44,47,45,25,48,47

lilavasa [31]

<h3>Hey there! </h3><h3>The word/ phrase "standard deviation" <u>means the measure of how to spread out the numbers are </u></h3><h3>So, </h3><h3> $52,$ $61,$ $31,$ $44,$ $47,$ $45,$ $25,$ $48,$ $47$ standard deviation is/are most likely: $\boxed{10.701765171119}$ ← $\boxed{answer}$ </h3><h3>In order for you to find out the standard deviation of this particular problem (or problems of standard deviation) you had <u>to work out for the mean,</u> meaning to simplify the averages of each and every number, then you would have to<u> subtract your mean and your square for the outcome </u> Nextly, <u>workout your mean for those squared for your differences..</u> Lastly <u>take whatever your square of that number and keep it as your result/ outcome </u></h3><h3>Good luck on your assignment and enjoy your day! </h3><h3>~ $LoveYourselfFirst:)$ </h3>

4 0

4 years ago

What is the simplified expression for the perimeter of the triangle with the length 5x -7, 3x-4, and 2x-6

Wewaii [24]

(5x-7) + (3x-4) + (2x-6)
5x-7+3x-4+2x-6
10x-17.

6 0

4 years ago

Help please I have to get on the regular one soon

dybincka [34]

Answer:

1. 2x + 8y = 10xy

2. 13ab + 15ab = 28ab

Step-by-step explanation:

This is because for question 2 the "a" and "b" stay together since it's on 13 and 15. So that is why you would get 28ab. For question 1 it's basicly the same but instead, you combine the two to get your answer.

Hope this helps.

8 0

3 years ago

Read 2 more answers