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boyakko [2]
3 years ago
15

I need help ASAP will mark you the brainliest

Mathematics
1 answer:
Leokris [45]3 years ago
8 0

Answer:

C

Step-by-step explanation:

longer leg/shorter leg = longer leg/shorter leg

10/5 = 5/2.5

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A solid object is dropped into a pond with a temperature of 20 degrees Celsius. The function f(t)=Ce(−kt)+20 represents the situ
LenaWriter [7]

Answer:

The initial temperature of the object was 37.6 degrees Celsius

The initial temperature of the object was 37.6 (without units)

Step-by-step explanation:

we have

f(t)=Ce^{(-kt)} +20

where

f(t) represent the temperature of the object in degree Celsius

t is the time in minutes

<em>Find the value of the constant C</em>

we have the ordered pair (4,35)

substitute in the equation and solve for C

35=Ce^{(-0.0399*4)} +20

Ce^{(-0.0399*4)}=15

C=15/e^{(-0.0399*4)}

C=17.6

Find the initial value of the object

we know that

The initial temperature is the value of f(t) when the value of t is equal to zero

so

For t=0

f(0)=(17.6)e^{(-k*0)} +20

f(0)=17.6 +20

f(0)=37.6\ degrees\ Celsius

therefore

The initial temperature of the object was 37.6 degrees Celsius

The initial temperature of the object was 37.6 (without units)

3 0
3 years ago
5 1/4 divided by 1 3/8
kkurt [141]
5 1/4 divided by 1 3/8 in decimal form is 3.818!
3 0
3 years ago
Eight is 1/5 of what number
Morgarella [4.7K]

Answer:

40

Step-by-step explanation:

8 = x/5

x = 8*5

x = 40

5 0
3 years ago
Read 2 more answers
What is the area of a 14cm square?
lbvjy [14]

Answer:

196 sq cm

Step-by-step explanation:

that's all I can say really

7 0
2 years ago
Center (3, -4) tangent to the y-axis what is the radius?
lina2011 [118]

Answer:

4 units.

Step-by-step explanation:

As its a tangent to the y axis the radius is 0 - (-4) = 4 units.

3 0
3 years ago
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