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seraphim [82]
2 years ago
8

Sam has saved 1400 cents from selling lemonade how many dollars does Sam have

Mathematics
1 answer:
Inessa [10]2 years ago
7 0

Answer: $14.

Step-by-step explanation: 100 cents is equal to 1 dollar. 1400 cents divided by 100 cents = 14. Therefore, you have 14 dollars.

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If f(1)=3 and f(n)=-2f(n-1)+ 1, then f(5)=
AlladinOne [14]
Our function is f(n)=-2f(n-1)+1.
We want to find f(5).
Let's substitute 5 for n.
f(5) = -2f(5-1) + 1
f(5) = -2f(4) + 1
We need to know f(4).
f(4) = -2f(4-1) + 1
f(4) = -2f(3) + 1
We need to know f(3).
f(3) = -2f(3-1) + 1
f(3) = -2f(2) + 1
We need to know f(2).
f(2) = -2f(2-1) + 1
f(2) = -2f(1) + 1
We know that f(1) = 3
f(2) = -2(3) + 1
f(2) = -6 + 1
f(2) = -5
Now we can use f(2) = -5 to find f(3)...
f(3) = -2(-5) + 1
f(3) = 10 + 1
f(3) = 11
Now we can use f(3) = 11 to find f(4)...
f(4) = -2(11) + 1
f(4) = -22 + 1
f(4) = -21
Now we can use f(4) = -21 t find f(5)!
f(5) = -2(-21) + 1
f(5) = 42 + 1
f(5) = 43
7 0
3 years ago
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A local company employs a varying number of employees each year, based on its needs. The labor costs for the company include a f
djyliett [7]
The answer is C
First you subtract 44,604 from 1,715,760 to get 1,671,156 then you divide 1,671,156 by 27,396 to get 61 people
4 0
3 years ago
Help I'll give you 100 points
Dvinal [7]

✏ Answer:

y=-9

Step-by-step explanation:

2-\frac{1}{8}y=11+\frac{7}{8}y

<u>➠</u><u> Subtract 2 from both sides:-</u>

<u />2-\frac{1}{8}y-2=11+\frac{7}{8}y-2

-\frac{1}{8}y=\frac{7}{8}y+9

<u>➠</u><u> Subtract 7/8y  from both sides:-</u>

<u />-\frac{1}{8}y-\frac{7}{8}y=\frac{7}{8}y+9-\frac{7}{8}y

-y=9

<u>➠</u><u> Divide both sides by -1:-</u>

<u />\frac{-y}{-1}=\frac{9}{-1}

y=-9

<u>OAmalOHopeO</u>

<u>✎--------------------------</u>

7 0
2 years ago
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50 POINTS
Marina86 [1]

vi is going in the positive direction (up). (That's my choice). a (acceleration) is going in the minus direction (down). The directions could be reversed.

Givens

vi = 160 ft/s

vf = 0 (the rocket stops at the maximum height.)

a = - 9.81 m/s

t = ????

Remark

YOu have 4 parameters between the givens and what you want to solve. Only 1 equation will relate those 4. Always always list your givens with these problems so you can pick the right equation.

Equation

a = (vf - vi)/t

Solve

- 32 = (0 - 160)/t Multiply both sides by t

-32 * t = - 160 Divide by -32

t = - 160/-32

t = 5

You will also need to solve for the height to answer part B

t = 5

vi = 160 m/s

a = - 32

d = ???

d = vi*t + 1/2 a t^2

d = 160*5 + 1/2 * - 32 * 5^2

d = 800 - 400

d = 400 feet

Part B

You are at the maximum height. vi is 0 this time because you are starting to descend.

vi = 0

a = 32 m/s^2

d = 400 feet

t = ??

formula

d = vi*t + 1/2 a t^2

400 = 0 + 1/2 * 32 * t^2

400 = 16 * t^2

400/16 = t^2

t^2 = 25

t = 5 sec

The free fall takes the same amount of time to come down as it did to go up. Sort of an amazing result.

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3 years ago
Polygon with only 2 congruent sides and 2 congruent angles
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A rectangle or a parallelogram is a polygon with only 2 congruent sides and 2 congruent angles.
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