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stepladder [879]
4 years ago
14

What is 63= 9k;6,7,8

Mathematics
1 answer:
OLEGan [10]4 years ago
4 0
63 = 9k 

divide by 9 on each side to get k by itself 

k = 7
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A computer technician charges $40.00 per hour plus $65.00 service charge. The computer technician spends h hours to complete the
Vaselesa [24]
You know that the computer technician has a flat 65 dollar service charge. This will be added to the hours worked.

hours= h

40 dollars per hour. So, every hour worked is worth 40 dollars.

c(h)= 40h+65

If you input the number of hours he worked as h, you would have the total amount of money he made if you solved the expression.

I hope this helps!
~kaikers
7 0
3 years ago
Select the correct answer.
Rashid [163]

Answer: D. (4,3)

The x coordinates of A and B are 9 and -1 in that order. Add them up to get 9+(-1) = 9-1 = 8. Then divide by two to end up with 8/2 = 4. The midpoint has an x coordinate of 4.

Repeat for the y coordinates. Add them up: 8+(-2) = 8-2 = 6. Then divide by two: 6/2 = 3. The midpoint has an y coordinate of 3.

Those two coordinates pair up to get (x,y) = (4,3) which is the midpoint of segment AB.

7 0
3 years ago
2. In the ratio of 3:2:2, three brothers invested a total of 249,000 to open a store. Find each
GaryK [48]

Answer:

$106,714.29

$71,142.86

$71,142.86

Step-by-step explanation:

There's a total of 7 pieces that they invested (3 + 2 + 2 = 7) so you can do 249,000 / 7 to find what each piece was worth.

249000/7 = about 35571.43

(you always have to round money to 2 decimal places)

Then the amount each brother spent would be:

3 * 35571.43 = 106714.29

2 * 35571.43 = 71142.86

2 * 35571.43 = 71142.86

8 0
3 years ago
Find the dr/d(theta) for:<br>r = (theta)sin(theta) + cos(theta)​
maxonik [38]

r=\theta\sin\theta+\cos\theta

\dfrac{\mathrm dr}{\mathrm d\theta}=\dfrac{\mathrm d(\theta\sin\theta)}{\mathrm d\theta}+\dfrac{\mathrm d(\cos\theta)}{\mathrm d\theta}

By the product rule,

\dfrac{\mathrm d(\theta\sin\theta)}{\mathrm d\theta}=\dfrac{\mathrm d(\theta)}{\mathrm d\theta}\sin\theta+\theta\dfrac{\mathrm d(\sin\theta)}{\mathrm d\theta}=\sin\theta+\theta\cos\theta

and

\dfrac{\mathrm d(\cos\theta)}{\mathrm d\theta}=-\sin\theta

So we have

\dfrac{\mathrm dr}{\mathrm d\theta}=\sin\theta+\theta\cos\theta-\sin\theta

\implies\dfrac{\mathrm dr}{\mathrm d\theta}=\theta\cos\theta

4 0
3 years ago
What is the next term of the geometric sequence?<br> 72,36, 18,
Stolb23 [73]

Answer:

9

Step-by-step explanation:

To find the common ratio, take the second term and divide by the first

36/72 = 1/2

To find the next term, take the last term and multiply by the common ratio

18*1/2 = 9

7 0
4 years ago
Read 2 more answers
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