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AleksAgata [21]
4 years ago
12

During track practice, Chris ran 2.5 laps in 81 seconds. What was his average time per lap?

Mathematics
2 answers:
Vinil7 [7]4 years ago
7 0

Answer:

32.4 Seconds

Step-by-step explanation:

I think, but i'm not completely sure. Let me know if that's right

bezimeni [28]4 years ago
6 0

Answer:

35 - 40 seconds

Step-by-step explanation:

81 / 2 = 40.5 But because he ran 2.5 laps he ran more than 2 laps, 2 laps would have taken him 78 seconds. 78 / 2 = 39 So about 40.


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Derivatives of sin(logx) from first principle​
Nina [5.8K]

Answer:

cos(logx)*(1/x)

Step-by-step explanation:

(sin(logx))'=cos(logx)*logx'=cos(logx)*(1/x)

5 0
3 years ago
What is the arc measure of YWZ in<br> degrees?<br> (5w+4)<br> (11w)
mote1985 [20]

Answer:

59 degrees

Step-by-step explanation:

In the figure below, XZ is a diameter of circle A.

Since the Angles (5w+4) and (11w) forms a straight line, then:

(5w+4)^\circ+(11w)^\circ=180^\circ\\5w+11w+4=180\\16w=180-4\\16w=176\\w=\frac{176}{16}\\ w=11

Therefore, the arc measure of YZ will be:

5w+4=5*11+4=59^\circ

7 0
3 years ago
which relation is a function. ( I chose option D) but not 100% sure. Need help ASAP. Will Mark Brainlest. ​
Shalnov [3]
It is C (the one on the bottom left) because none of the X-values are used twice. On all the others their X-values are used more then once.
4 0
3 years ago
Reduce To Simplest Form.<br><br>2/2 + 1.75 - 44/25 =​
Soloha48 [4]

Answer/Step-by-step explanation:

First, we should make each fraction, decimal, whole number into fraction and number form.

So, 2/2 = 1.

1.75 is 1 3/4.

44/25 is 1 19/25.

Now we have our equation, now we can do this equation easier.

1 + 1 3/4 - 1 19/25.

1 + 1 3/4 = 2 3/4.

Then, we turn both numbers to Decimal Form.

2 3/4 = 2.75

1 19/25 = 1.76.

When we divide 19 by 25, we get 0.76.

Then we subtract the decimals.

We should start right and end left.

5 - 6 = -1, we need to borrow one from the closest digit to the left, which is 7. Now we have 15 - 6 = 9.

Next, we have 6 - 7 = -1, we need to borrow one from the closest digit to the left, which is 2. Now we have 16 - 7 = 9.

Our answer right now is 0.99.

Lastly, 1 - 1 = 0.

Which leaves us with the answer: 0.99 (Zero and Ninety Nine Hundredths.)

Best of Luck to you.

If you have any questions, feel free to comment below.

5 0
3 years ago
9.) The angles below are supplementary. Find the value of x.​
puteri [66]

Answer:

95 degrees

Step-by-step explanation:

A supplementary angle is an angle that equals 180 degrees. Here it shows that 85 degrees + x = 180 degrees, since part of the supplementary angle has already been taken up by the 85 degrees and x is remaining. Therefore, solve the equation for x.

85 + x = 180

x = 95

4 0
3 years ago
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