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d1i1m1o1n [39]
4 years ago
5

A ball is thrown from an initial height of

Mathematics
1 answer:
ExtremeBDS [4]4 years ago
6 0
We are using simple gravity as a constant (ignoring air resistance and change in height)

a=-g  integrating with respect to t

v=-gt+C  where C is the initial velocity...

v=-gt+29  integrating again with respect to time...

h=(-gt^2)/2+29t+C  where C is the initial height of the ball...

h(t)=-16t^2+29t+4
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A hummingbird’s heart beats about 1,250 beats
kicyunya [14]

Answer:0﹤Ⅹ﹤1250

Step-by-step explanation:

5 0
3 years ago
1. Greg Forrester's charge account statement showed a previous balance 20 points
Slav-nsk [51]

Answer:

Option $152.19

Step-by-step explanation:

Data provided in the question:

Previous balance = $152.35

Finance charge = $1.78

New purchases of $45.23 and $15.67

Payment = $50.00

Credit = $12.84

Now,

New Balance

= [Previous balance + Finance charge + New purchases ] - [ Payments + Credits ]

= [ $152.35 + $1.78 + ($45.23 + $15.67) ] - [$50.00 + $12.84 ]

= $215.03 - $62.84

= $152.19

Hence,

Option $152.19

3 0
3 years ago
The area of the rectangular faces of the box are shown . What is the volume of the box
Gnoma [55]
Label the 3 distinct sides of the box.  I arbitrarily chose the letters a, b and c.
Use the info about areas as follows:

ab=54 in^2
ac=90 in^2
bc=60 in^2

Here you have 3 equations in 3 unknowns (a, b and c), which is enough info to use to determine a, b and c.  Then the volume of the box is a*b*c.

Example:  bc = 90, but c = 60/b.  You could subst. 60/b for c in the 2nd and 3rd equation, which will eliminate c completely and leave you with 2 equations in 2 unknowns.

Continuing this procedure, I determined that a=9, b=6 and c=10.  Thus, the volume of the box is V = 9*6*10 = 540 cubic inches (answer)

3 0
3 years ago
The mapping diagrams below show 4 different relationship between input and output values.
KatRina [158]

Answer:

A. B and C are functions

Step-by-step explanation:

Given

See attachment for mapping diagrams

Required

Which represent function

For a mapping to be considered a function, each element of the input set must only point to 1 element of the output set.

Base on the above analysis, we have:

<u>Map A</u>

1 points to 6; 2 to 7; 3 to 8; and 4 to 9

<em>This is a function</em>

<u>Map B</u>

2 points to 0; 4 to 0; 6 to 0; and 8 to 0

<em>This is a function</em>

<u></u>

<u>Map C</u>

1 points to 8; 3 to 8; 5 to 9; and 7 to 9

<em>This is a function</em>

<u>Map D</u>

0 points to 2 and 5; 3 points 7 and 9

<em>This is not a function</em>

8 0
3 years ago
Convert 0.45 to a percent. Remember to add the percent sign.<br> 0.45%<br> 4.5%<br> 45%<br> 50%
notka56 [123]
45% is the answer to this question
3 0
3 years ago
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