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3 years ago

Timothy can sing Happy Birthday in 8 seconds. Clifford can sing

Mathematics

2 answers:

frez [133]3 years ago

7 0

Answer:

Clifford by .17 seconds

Step-by-step explanation:

Evgen [1.6K]3 years ago

6 0

Answer:

Timothy ca sing it faster by 0.57 seconds

Step-by-step explanation:

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20 POINTS!!! PLZ ANSWER!! On the moon, the time, in seconds, it takes for an object to fall a distance, d, in feet, is given by

scoundrel [369]

Answer:

Part a) $f(2)=1.57\ sec$

It takes 1.57 seconds for an object to fall a distance of 2 feet

Part b) see the explanation

Part c) $2,165.43\ sec$

Step-by-step explanation:

Let

f(d) -----> the time in seconds it takes for an object to fall

d -----> distance in feet

we have

$f(d)=1.11\sqrt{d}$

Part a): Determine f(2) and explain what it represents

we know that

f(2) represent the time in seconds it takes for an object to fall a distance of 2 feet

For $d=2\ ft$

substitute in the function above and solve for f(2)

$f(2)=1.11\sqrt{2}$

$f(2)=1.57\ sec$

therefore

It takes 1.57 seconds for an object to fall a distance of 2 feet

Part b) The imbrium basin is the largest basin on the moon. A reasonable domain for the height above the lowest point in the basin is given by {d|0 ≤ d ≤ 3805774}

What does this tell you about the basin?

The height of the basin is greater than or equal to 0 ft and less than or equal to 3,805,774 ft

The maximum height of the basin is 3,805,774 ft

Part c) How long would it take a rock to drop from the rim to the bottom of the basin?

we know that

The distance from the rim to the bottom of the basin is equal to the maximum height of the basin

$d=3,805,774\ ft$

substitute the value of d in the function f(d)

$f(d)=1.11\sqrt{3,805,774}$

$f(d)=2,165.43\ sec$

3 0

3 years ago

5x-4y=-18 what is the three point on a graph for this equation

Tju [1.3M]

(1)Draw the "y" line . It goes up and down.
Make sure to mark the centimeters or quarter inches with little nobs. 
Start at -20 and go to 10 
(2)Draw the "x" line. it goes side to side. 
place the x line at the zero point of the y line. I'm sure you will see your paper looks like the letter "t". Perfectly at a right angle. you could use the corner of a book to square it. 

Now for the maths 5x - 4y = -18. The most important symbol here is the "=" sign. 
(3) rearrange the equation so that y is on one side of "=" and x is on the other side. 
Remember if you add 10 to one side the of "=" , then for it to be equal, add 10 to the other. side also 
so add 4y to both sides. add 18 to both sides . divide the whole of each side by 4. 
5x - 4y + 4y + 18 = -18 + 4y + 18 
1.25x + 4.5 = y 
(4) now write down on a peace of scrap paper, x=1, y= 5.75, x=2 y= ___ , x=3 y= ___ 
(5) remember BEDMAS, and put 1 in the place of x and calculate what y is . 
(6) get your ruler , line up x = 1 (ruler is going up and down) and draw a spot on what y = . Get two rulers if you must. 
(7) 
hey presto, you got your three points on a graph.

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3 years ago

What is the area of the polygon in square units? Correct answer gets brainliest

givi [52]

Answer:

Step-by-step explanation:

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3 years ago

Which expression is equivalent to (7x – 5) – (3x - 2)?

Alex73 [517]

Answer:D

Step-by-step explanation: