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2 years ago

How to get a perimeter of 200

Mathematics

1 answer:

Gnom [1K]2 years ago

4 0

Answer:

You could have a square with side of 50 ft.

Step-by-step explanation:

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Solve for u.

STALIN [3.7K]

Answer:

5u-15=10 |+15

5u=25 |:5

u=5

The solution is 25

I hope it helps

have anice day

5 0

2 years ago

Read 2 more answers

After heating up in a teapot, a cup of hot water is poured at a temperature of 204°F.

laila [671]

Answer:

Question 1: 0.081 min⁻¹

Question 2: 168ºF

Explanation:

The missing equation is:

$T=T_a+(T_0-T_a)e^{-kt}$

You are given:

Ta = the temperature surrounding the object = 73ºF
T₀ = the initial temperature of the object = 204ºF
t = 2.5 min
T after 2.5 min = 180ºF

Question 1: Find the the value of k.

Substitute the data into the equation and solve for k:

$180\º=73\º+(204\º-73\º)e^{-k\cdot 2.5min}\\ \\ 107\º=131\ºe^{-k\cdot 2.5min}\\\\-k\cdot 2.5min=\ln (107/131)\\\\k=0.081min^{-1}$

Question 2: Find the Fahrenheit temperature of the cup of water, to the nearest degree, after 4 minutes.

Subsititute into the formula and compute:

$T=73\ºF+(204\ºF-73\ºF)e^{-0.081min^{-1}\times 4min}\\ \\ T=73\ºF+(131\ºF)(0.72325024)\\\\T=168\ºF$

4 0

3 years ago

What is the domain for the function? someone please help

Vinvika [58]

Answer:

Domain : ( -3 , 4.5 )

Step-by-step explanation:

7 0

3 years ago

The scale for a model house is 1:12

guapka [62]

Answer:

here's what I got from wikipedia (i dont like taking of other's brain skills :/ )

Step-by-step explanation:

1:12 scale is a traditional scale (ratio) for models and miniatures, in which 12 units (such as inches or centimeters) on the original is represented by one unit on the model. Depending on application, the scale is also called one-inch scale (since 1 inch equals 1 foot)

hope this helps you :)

5 0

3 years ago

Read 2 more answers

5/8 + 3/6 SOMEONE PLS HELP MEEEE.

anygoal [31]

Answer:

1.125 or 9/8

Step-by-step explanation:

5/8 is .625 and 3/6 is .5 so .625+.5=1.125

6 0

2 years ago