2 years ago

Please someone help Im confused

Mathematics

1 answer:

Lisa [10]2 years ago

6 0

Answer:

Third one

Step-by-step explanation:

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Which is the inverse of this matrix? A. B. C. D. E. The matrix is noninvertible.

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Answer:

-19 9 7

[15 -7 6 ]

-2 1 1

Step-by-step explanation:

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3 years ago

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the following data respresents the number of text message received in a day by 10 students. What was the mean number of text rec

rjkz [21]

43+37+35+30+41+23+33+31+16+21=310
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2 years ago

The cost C, in dollars, to have medical records transcribed is a function of time, t in hours. A physician's group spends C(t) =

Contact [7]

Answer:

B. $39550

Step-by-step explanation:

The expression for the function is not well-formatted, find the correct format in the solution bellow

Step one:

given data

We are told that the function of the cost is

$C(t) = 0.04t^3- 0.1t^2 + 5.5t$

instantaneous rate c(t) is the value obtained when we plug in 100 for t in the function above

substituting we have

$C(t) = 0.04(100)^3- 0.1(100)^2 + 5.5(100)\\\\\C(t) = 0.04*1000000- 0.1*10000 + 5.5*100\\\\C(t) = 40000-1000+550\\\\C(t) = 39550$

$39550

3 0

2 years ago

suppose triangle ABC is reflected over the x-axis. If the distance between point A and the x-axis is 7, what is the distance bet

astra-53 [7]

Answer:

Step-by-step explanation:

If A is 7 units away from the x-axis then the x-axis is seven units away from A.

That's if I read the question right.

6 0

3 years ago

Use a unit rate to find the unknown value 16/32= /14

lesya [120]

Okay. So this is already set up as a proportion. Cross multiply the values in order to get 224 = 32x. Now, divide each side by 32 to isolate the variable. 224/32 is 7. x = 7. There. The unknown value is 7.

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3 years ago