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mote1985 [20]
3 years ago
14

taylot is making a cookie cake that has a diameter of 15 in what is the area of a fourth of the cake?

Mathematics
1 answer:
vlabodo [156]3 years ago
3 0
Circle since diameter
area=pir^2
d/2=r
15/2=7.5=r
area=pi7.5^2
area=pi56.25
1/4 of that
56.25pi times 1/4=14.0625pi

answer is 14.0625pi in^2 or aprox 44.1786375 in^2
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A patient with end-stage kidney disease has nine family members who are potential kidney donors. How many possible orders are th
eduard

Answer: 504

Step-by-step explanation:

When we select r things from n things in a order , we use permutations.

Formula for permutation:  ^nP_r=\dfrac{n!}{(n-r)!}

Given : The number of family members who are potential kidney donors. = 9

Number of people needed to be selected for best match, a second-best match, and a third-best match ( in an order)=3

Then, the number of possible orders are = ^9P_3=\dfrac{9!}{(9-3)!}

=\dfrac{9\times8\times7\times6!}{6!}=504

Hence, the number of possible orders 504.

4 0
3 years ago
Write this small number in standard form. 0.0000000014 *
kap26 [50]

Answer : 1.4 x 10^-9

Step-by-step explanation:

0.0000000014

= 1.4 x 10^-9

3 0
3 years ago
a mountaineer climbed 1,000 feet at a rate of x feet per hour, he climbed and additional 5,000 feet at a different rate. this ra
marshall27 [118]

A mountaineer climbed 1000 feet at a rate of x feet/hour

 1000 = x ( t 1 )         eq1

  5000 = X ( t 2)        eq2     ( he climbed additional at different rate )

the rate was 10 feet / hour less than twice the first rate

 X   = 2x - 10             eq3

take eq1 and eq 2

( total time = t 1 +  t 2 =   T)

T = 1000/x  + 5000/X

but X = 2x-10

T = 1000/x   +  5000/( 2x -10)

T = 1000/x   +  5000/( 2(x-5))

T  = 1000/x   +    2500 /  (x-5)



3 0
2 years ago
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2 years ago
The stem-and-leaf plot shows kilometers walked by participants in a charity benefit walk. Use it to answer the questions. a. Des
aivan3 [116]

Answer / Explanation

The question is incomplete. It can be found in search engines:

However, kindly find the complete question below:

Question:

The stem and leaf plot shows kilometers walked by participants in a charity benefit walk. Use it to answer the question

12|3 3 6 7 9 9

13| 1 1 4 5 5

14| 0 0 2 3 3 8 8 9

15| 2 2 2 2 2 3 5 5 7

16| 4 5 5 9 9

17|3 5

(a) How many people participated in the walk? Exactly 35 people participated in the walk.

(b)How many of the walkers traveled more than 14 kilometers? About 16-22 people traveled more than 14 kilometers.

Answers:

(a) Exactly 35 people participated in the walk.

(b) About 16-22 people traveled more than 14 kilometers.

4 0
3 years ago
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