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Vika [28.1K]
3 years ago
10

8+6 it’s a math test

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
7 0

Answer:

14

Step-by-step explanation:

Combine like terms:

8+6=14

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An animal shelter estimates that it costs about $6 per day to care for each dog. If y represents the total cost of caring for a
TEA [102]

Answer:

A 2-column table with 3 rows. Column 1 is labeled x with entries 12, 15, 18. Column 2 is labeled y with entries 6, 9, 12.

Step-by-step explanation:

A 2-column table with 3 rows. Column 1 is labeled x with entries 12, 15, 18. Column 2 is labeled y with entries 6, 9, 12.

7 0
2 years ago
Find the means of these numbers 3,7,2,9,4,7,3,7,5,2
Sholpan [36]

The "mean" of a group of numbers is also called their "average".

To calculate the mean, add up all the numbers, then
divide the sum by the number of items on the list.

Step #1:  Addum up:  3+7+2+9+4+7+3+7+5+2 = 49

Step #2:  Count the number of items on the list:  I count 10 .

Step #3:  Divide the sum by the number of items on the list.

                 49 / 10  =  4.9

The mean (average) of the numbers on that list is  4.9 .

6 0
3 years ago
Read 2 more answers
If a data set has ssr = 400 and sse = 100, then the coefficient of determination is
BARSIC [14]
To solve this problem you must apply the proccedure shown below:

 1. You have that the <span>data set has SSR=400 and SSE=100

 2. Therefore you have </span><span>the coefficient of determination is:

 r</span>²=SSR/SSTO

 SSTO=SSR+SSE

 3. Then, when you substitute the values, you obtain:

 SSTO=400+100
 SSTO=500

 r²=400/500

 4. So, you have that the result is:

 r²=0.8

 Therefore, as you can see,  the answer for the exercise shown above is: <span> the coefficient of determination is 0.8</span>
 
3 0
3 years ago
Read 2 more answers
Write a real-world problem in which you
tresset_1 [31]

Answer:

A recipe asks for 2 pints of milk, but you only have a measuring cup that measures in cups.

Step-by-step explanation:

5 0
2 years ago
A certain solar collector can absorb 9.0 MJ in 7.0 h. Another panel is added, and together they collect 41 MJ in 5.0 h. How long
Rina8888 [55]
Lets call the rate at which the first panel absorbs solar energy x:
x = 9/7

To find out how much energy the panel will absorb in a certain number of hours, just multiply x by the time:
In 7 hours, energy = (9/7) * 7 = 9MJ
In 8 hours, energy = (9/7) * 8 = (72/7)MJ

Let's call the rate at which the second panel absorbs solar energy y. Therefore, we can write an equation, in x and y, using the information in the question:
5x + 5y = 41

We know what x is, so 5x = 5 * (9/7) = (45/7):
(45/7) + 5y = 41
5y = 41 - (45/7)

41 is the same as (41*7)/7 = 287/7:
5y = 287/7 - 45/7 = (287-45)/7 = 242/7

Divide both sides by 5 to find the value of y (in MJ absorbed per hours, MJ/h):
y = 242/35 = 6.914285714MJ/h

Let's call the time taken for the new panel to absorb 41MJ t:
ty = 41

We know what y is, so substitute that in and solve:
6.914285714t = 41
t = 41/6.914285714 ≈ 5.929752066 hours

I would like to express this value in the SI unit, which is seconds, s:
5.929752066 * 3600 = 21347.1s




6 0
3 years ago
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