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Svetllana [295]
3 years ago
9

C(r), the circumference of a tire, is based on the radius, r. What is an appropriate domain for the function? A) all integers B)

all real numbers C) all whole numbers D) all positive numbers
Sorry about my previous question that was my friend playing on my computer
Mathematics
1 answer:
faust18 [17]3 years ago
5 0

Answer:

Domain will be all positive numbers.

Therefore Option D is correct.

Step-by-step explanation:

A tire is of circular shape so the circumference of a circle we know which is:

C=2\pi r

Where, C is circumference,, r is radius

So, Here the circumference of tire will also be: C=2\pi r

Domain is  the value that x will take

And here r is corresponding  with r.

So, radius cannot be negative,

So, Domain will be all positive numbers.

Therefore Option D is correct.

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A famous Premier-league footballer was quoted on Match of the Day to have a goal-scoring statistic of 0.36
stepan [7]

Answer:

13a.\  The \ probability\ of \ scoring\ a\  goal\  in\  a\  game\  is\  0.36\\\\b. 3 \ games

14.

a. \ \£90\\b. \ 26 \ weeks\\c. \ \£4,860

15. This is not possible since p(yellow)=0.10 which is less than the stated 0.35

Step-by-step explanation:

13 a. -A goal-scoring statistic is the probability of a player scoring one goal in any given game played.

-A 0.36 goal scoring statistic means that the player has a 0.36 or 36% chance of scoring a goal in any game that he is involved in.

b. To determine the number of games it takes to score a whole goal, we divide the probability by 1 goal:

Games=\frac{1 \ game}{p(goal)}\\\\=\frac{1}{0.36}\\\\=2.778\approx 3

Hence, it takes approximately 3 games to score a full goal.

14.-The cost of a GCSE retake is £600 and attracts a 15% deposit

#The 15% equivalent in actual pounds is calculated by multiplying the percentage by the total cost as:

C_g=0.15\times 600\\\\=\£90

Hence, the 15%  deposit amount equals £90

b.#The student pays the balance in a £20 per week scheme,the total number of weeks is calculated as:

t=\frac{Balance}{Rate}\\\\=\frac{600-90}{20}\\\\=\frac{510}{20}\\\\=25.5\approx 26

Hence, it takes 26 weeks to clear the balance.

c. Given that 10% is the equivalent of £450

-We divide this amount by 10% to get the 100% equivalent

#We know that 10%=0.10

100\%=\frac{540}{0.1}\\\\=\£5400

#Alternatively, 100% divided by 10% is 10. Multiply this value by £540:

=540\times 10\\\\=\£5400

We subtract the discount amount for the per-discount price:

Cost=Total -discount\\\\=5400-540\\\\=\£4860

Hence, it will cost £4,860 without the discount.

15. Since we are not given the proportion of colors in the bag, we assume that all the 10 beads have different colors.

-As such, the sample space is 10 and each color has an equal chance of being picked:

P(Each \ Color)=P(Yellow)=\frac{1}{10}\\\\\therefore P(Yellow)

Hence, this is impossible since 0.10<0.35

7 0
3 years ago
Is 4/5 a solution of x&lt;2?
krok68 [10]
Yea it is.4\5 is greater than 2
5 0
3 years ago
Read 2 more answers
im almost done with this hw. plz help!!! give explanation if you actually know the answer so ik u dont just want points
Vaselesa [24]

Answer:

he would have a 2/5 chance because he misses or hit three so he would either miss two or hit two according to the chart

Step-by-step explanation:

sry if I'm wrong but it would be one of the most valid answers

5 0
2 years ago
Read 2 more answers
(7x+14) (15x-4) solve for x (20 points
Misha Larkins [42]

Answer:

The value of x .

7x-14= 15x

-14 =8x

x= -7/4

Step-by-step explanation:

sorry if im wrong

7 0
3 years ago
If x/6=-3 then x= what?<br><br> Algebra 1
Gelneren [198K]
If x/6=-3 then x=-18
8 0
2 years ago
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