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Jlenok [28]
3 years ago
9

*25 points* Hailey ran a few laps. D(n), models the duration (in seconds) of the time it took for Hailey to run her n^th lap. Wh

en did the lap duration increase faster?
A. Between the 3rd and 7th lap

B. Between the 7th and 9th lap

C. The lap duration increased at the same rate over both intervals

Mathematics
2 answers:
miss Akunina [59]3 years ago
6 0

Answer:

B

Step-by-step explanation:

I just did the quiz, so you all can trust me :)

givi [52]3 years ago
5 0

Answer:

B

Step-by-step explanation:

4 laps were ran between her 3rd and 7th lap (inclusive) and the duration increased by 14 seconds

But just 2 laps were ran between her 7th and 9th lap and the duration increased by 11 seconds

So obviously the lap duration increased faster between the 7th and 9th lap

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enot [183]
That is a 30 60 90 triangle.
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Area = (1/2) * 5 * <span> <span> 8.6602540378 </span>
</span>Area = 2.5 * <span> <span> 8.6602540378
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3 years ago
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Kanya is comparing the rate for shipping and handling for two online shopping websites. For the item she has selected, Big Barga
kari74 [83]
Answer:

D. Discount Deals Depot; $15.20

Why?
Lets do Big Bargain Bonanza first.
$8.00 would stay the same as it is for handling. The only number that would change is $1.25, it uses the the words PER pound for shipping.

Your equation would look like this with p being how many pounds Kanya is shipping:
$8.00+$1.25p

Now we just plug in the numbers.
$8.00+$1.25(6)=
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The same games for Discount Deals Depot.
$9.50+$0.95(6)=
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6 0
2 years ago
Outside a home there is a keypad that will open the garage if the correct six-digit code is entered. How many codes are possible
Karolina [17]

Answer:

1000000 = 1 MLN CODES

Step-by-step explanation:

According the terms of the problems the code has 6 digits or has 6 positions.

At 1st position any of 10 digits (0,1,2,3,4,5,6,7,8 or 9 ) can put

The digits can repeated, so at position 2 any of 10 difits can put.

At position 3 again any of 10 digits can put and similarly for each of next positions can be put any of 10 digits.

So each position of the code has 10 possible variants.

To find the total number of possible codes we have to multiply the number of variants for each position to each other.

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3 years ago
What is x-y=6 in y=Mx+b form
Sloan [31]
Uh i hope this helps im not sure if it has to do with graphing?

7 0
3 years ago
The volume of a cylinder is 225π cm³ and its height is 9 cm.
Oksana_A [137]

Answer:

5cm

Step-by-step explanation:

Given data

volume = 225π cm³

Height= 9cm

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r^2= 25

r= √25

r= 5cm

Hence the radius is 5cm

8 0
3 years ago
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