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Novay_Z [31]
3 years ago
5

Sabrina is using an online calculator to calculate the outputs f(n) for different inputs n. The ordered pairs below show Sabrina

's inputs and the corresponding outputs displayed by the calculator:
(1, 6), (2, 11), (3, 16), (4, 21)

Which of the following functions best represents the rule that the calculator uses to display the outputs?

f(n) = 5n − 1
f(n) = 5n + 1
f(n) = 4n + 3
f(n) = 4n − 3
Mathematics
2 answers:
san4es73 [151]3 years ago
8 0
 the answer is f(n) = 5n +1
Aleonysh [2.5K]3 years ago
3 0

Answer: f(n) = 5n + 1

PLEASE mark brainliest Good Luck!!! and Thank You

Step-by-step explanation:

Got it right on my test and wanna share it with others :)

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I’m confused on this question help?
coldgirl [10]

Answer:

C

Step-by-step explanation:

a - plus - means +

4 0
3 years ago
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Diego deposited $5,000 at a rate of 6.25 % for 20 years . Find the simple interest and amount of money Diego had in the bank aft
sammy [17]

Answer:

First find the rate for a year .

5000 dollars × 6.25 = 31 250

After you find it multiply it by 20 ( because there are 20 years)

31 250 × 20 = 625000

5 0
3 years ago
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Kerry skates laps around the playground.
Zarrin [17]
So to start this off, we need to find the area of the playground. We can simply multiply 150*2 and 50*2, and we get 300 and 100. Add those together and we get 400m.
Now, we can identify the number of laps it takes. But first, we have to convert kilometers into meters. there are 1000 meters in 1 km, so we will use 1000 to find the answer
Now, we can do 1000/400 to find the answer, which is 2.5 
Therefore, it will take Kerry 2.5 laps to skate around the entire park

Answer: 2.5 laps

Hope this helped!!! :D
3 0
3 years ago
9. An express delivery service advertises next-day delivery of any parcel it receives before 3PM. The actual success rate is 90%
Juli2301 [7.4K]

Answer:

a) P(X =16 ) = 0.1853

b) P(X \leq 12) = 0.0684

Step-by-step explanation:

GIVEN DATA:

n = 16

p = 0.90

from relation given probabllity can be solve

P(X) = ^nC_x * p^x * ( 1 - p)^{n-x}

a)

P(X =16 ) = ^{16}C_{16} * 0.90^x * ( 1 - 0.90)^{16-16}

P(X =16 ) = 0.1853

b) P(X \leq 12) = 1 - P(X \geq 13)

= 1 - [ P(X = 13) +P(X = 14) +P(X = 15) +P(X = 16) ]

= 1 - [ ^{16}C_{13} * 0.90^{13} * (1 - 0.90)^3 +^{16}C_{14} * 0.90^{14} * (1 - 0.90)^2 +^{16}C_{15} * 0.90^{15} * (1 - 0.90)^1 +^{16}C_{16} * 0.90^{16} * (1 - 0.90)^0 ]

= 0.0684

4 0
3 years ago
Out of a salary of $4500, I kept 1/3 as savings. Out of the remaining money, I spend 50% on food and 20% on house rent. How much
jeka94

Answer:

$2100

Step-by-step explanation:

1/3 of 4500 is 1500

to find 1/3 of a number is to multiply by 1/3

1/3 * 4500 = 1500

$1500 is for savings

subtract 1500 from 4500

4500 - 1500 = 3000

the remaining money is $3000

to find 50% of something, divide by 2

3000/2 = 1500

$1500 is spent on food.

20% of 3000 is 600

to find 20% of something, multiply the decimal value (0.2)

0.2 * 3000 = 600

$600 are spent on rent.

$450 leftover

1500 + 600 = 2100

Food and rent cost $2100

hope this helps:)

3 0
2 years ago
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