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Ray Of Light [21]
3 years ago
8

What is the distance between -42 and -12 on a number line?

Mathematics
2 answers:
ziro4ka [17]3 years ago
6 0

Answer:

30

Step-by-step explanation:

sveticcg [70]3 years ago
5 0

Answer:

30

Step-by-step explanation:

The distance between two points on a number line is the absolute value of the difference of their coordinates. Because it is the absolute value, the distance will always be positive.

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Find the minimum value if f(x) = xe^x over [-2,0]
SashulF [63]

Given function:

f(x)=xe^x

The minimum value of the function can be found by setting the first derivative of the function to zero.

f^{\prime}(x)=xe^x+e^x\begin{gathered} xe^x+e^x\text{ = 0} \\ e^x(x\text{ + 1)  = 0} \end{gathered}

Solving for x:

\begin{gathered} x\text{ + 1 = 0} \\ x\text{ = -1} \end{gathered}\begin{gathered} e^x\text{ = 0} \\ \text{Does not exist} \end{gathered}

Substituting the value of x into the original function:

\begin{gathered} f(x=1)=-1\times e^{^{-1}}_{} \\ =\text{ -}0.368 \end{gathered}

Hence, the minimum value in the given range is (-1, -0.368)

6 0
1 year ago
The value y of varies directly with x. When y = 19.375, x = 7.75.
Bingel [31]

Answer: (X,Y) = (0.4, 7.75)

Step-by-step explanation:

Y=7.75,

19.375X=7.75

Then solve for X

Divide 19.375 on both sides to get X=0.4

Y=7.75

X=0.4

6 0
3 years ago
Read 2 more answers
The graph below shows a line of best fit for data collected on the average heights of children.
a_sh-v [17]

Answer:

A. 41

Step-by-step explanation:

Look at the number 6 and follow the line until it shows you the number, which 41

6 0
3 years ago
Read 2 more answers
HELP! I NEED AN ANSWER!
Elodia [21]
4/5 of 55= 44 That’s the answer
5 0
3 years ago
Five WHOLE numbers are written in order
tino4ka555 [31]

x = 7

y = 8

All I did was assume x was 7 and y was 8. I added 4, 6, 7, 8, and 10 together. I got 35. Then, I divided by five (since that's how many numbers are shown) and I got 7 for the mean. 7 is the median, and the 7 is the mean gotten from 4, 6, 7, 8, and 10. Therefore, x must equal 7 and y must equal 8.

4 0
2 years ago
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