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pentagon [3]
3 years ago
7

Please tell me I dont know plz plz​

Mathematics
1 answer:
vlabodo [156]3 years ago
4 0

Answer:

a=450 b=480

Step-by-step explanation:

do like this

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The function h(t)=-4.92t^2+17.69t+575 is used to model an object being tossed from a tall building, where h(t) is the height in
nikklg [1K]
We have the following equation:
<span> h(t)=-4.92t^2+17.69t+575

</span> For the domain we have:
<span> </span>We match zero:
 -4.92t ^ 2 + 17.69t + 575 = 0
 We look for the roots:
 t1 = -9.16
 t2 = 12.76
 We are left with the positive root, so the domain is:
 [0, 12.76]

 For the range we have:
 We derive the function:
 h '(t) = - 9.84t + 17.69
 We equal zero and clear t:
 -9.84t + 17.69 = 0
 t = 17.69 / 9.84
 t = 1.80
 We evaluate the time in which it reaches the maximum height in the function:
 h (1.80) = - 4.92 * (1.80) ^ 2 + 17.69 * (1.80) +575
 h (1.80) = 590.90
 Therefore, the range is given by:
 [0, 590.9]

 Answer:
 the domain and range are:
 
domain: [0, 12.76] range: [0, 590.9]
5 0
3 years ago
Read 2 more answers
Greg was dividing 0.56 by 0.64.
Bad White [126]
A.) It will be less than 0.56


Because it's going to the negative numbers
3 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=E%3D1%2F6%CF%80t%2A2%2A2x" id="TexFormula1" title="E=1/6&pi;t*2*2x" alt="E=1/6&pi;t*2*2x" alig
saul85 [17]

Answer:

i=

8.154845

2tx3

Step-by-step explanation:

8 0
3 years ago
Zoe practices the piano 812 minutes in 4 weeks. At what rate did she practice, in minutes per day
Marina CMI [18]

Answer:

Step-by-step explanation

Given

Zoe practices the piano 812 minutes in 4 weeks

4 weeks=7×4

=28 days

she practice, in minutes per day=812/28

=29 minutes

So she practices 29 minutes per day

5 0
4 years ago
URGENT! FOR BRAINLY
Butoxors [25]
B. set up like a proportion. 18/408.24 equals 42/ X. Cross multiply so that 17,146.08 is equal to 18 X, then divide both sides by 18
3 0
4 years ago
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