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3 years ago

Examine the graph at right. Then in a sentence suggest why the graph rises at 11:00am and drops at 1:15pm

Mathematics

1 answer:

makkiz [27]3 years ago

6 0

The x-axis of the graph is the time while y-axis of the given plot is the money inside Lucy's purse in dollars. we can see that from 6 am to 11 am, Lucy's money is equal to about $60 while around 11 am it rose up to around $125 and then decreased to $100. This means that in the given range of time, only one transaction per time range was done by Lucy. One scenario here was that before lunch, say 11 am, her money was $60 and found out that she has to buy something after work, in which her money was not enough. She went to withdraw some cash that's why she had $125 in total and has to spend a portion of it at lunch with the remaining cash of $100.

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Why does a square with an area 20² not have a whole number side length.

Klio2033 [76]

Answer:

This is because the number '20' is not a perfect square.

Step-by-step explanation:

If you find $\sqrt{20}$ , you will be getting 4.4721935955... which is not a whole number, thus 20 is not a perfect square.

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3 years ago

Find the domain of the function f(x)= 2x-6

Vesna [10]

Answer:

Well, the function is F(x)=x^(2)-6x=C so the domain would be found infinite.

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2 years ago

Use the distributive property to simplify 2-(-3a+4)

dolphi86 [110]

Answer:

3a -2

Step-by-step explanation:

2-(-3a+4)

Distribute the minus sign to each term inside the parentheses

2 - -3a -4

2 + 3a -4

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2-4 +3a

-2 +3a

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3a -2

4 0

3 years ago

Read 2 more answers

Help meeeeeeeeeeeeeeeeeeeeeeeee

IRINA_888 [86]

Answer:

118.75

Step-by-step explanation:

47.50 multiplied by 2.5 would equal 118.75

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3 0

2 years ago

Read 2 more answers

What is the percent increase in the surface area of the AAA battery to the AA battery? Round your answer to the nearest tenth of

Bogdan [553]

Answer:

101.1%

Step-by-step explanation:

The two batteries are in the shape of cylinder.

The total surface area of a cylinder

SA = (2πr^2 + 2πrh ) =

For AAA battery

h = 0.8mm

r = 1.9 mm

SA = (2π(1.9)^2 + 2π × 1.9 × 0.8 )

SA = 22.68 + 9.55

SA = 32.23 mm^2

For AA battery

h = 1 mm

r = 2.75 mm

SA = (2π(2.75)^2 + 2π×2.75× 1 )

SA = 47.52 + 17.28

SA = 64.80 mm^2

Increase in SA = 64.80 - 32.23

Increase in SA = 32.57

% increase = increase in SA/AAA × 100

% increase in SA = 32.57/32.23 × 100

% increase in SA = 101.1%

4 0

3 years ago