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2 years ago

Which is an exponential decay function? f(x) = 0.2(5/3)^x f(x)=-3.1^x f(x)=10^x f(x)=-2(0.7)^x

Mathematics

2 answers:

Serjik [45]2 years ago

4 0

-2(.7)^x is the only function where decay would be demonstrated of these

neonofarm [45]2 years ago

4 0

Answer:

F(x)= -2(0.7)x

Step-by-step explanation:

Just took the test

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What is the simplified form of the following expression?

kogti [31]

Answer:

$\sqrt{3}$

Step-by-step explanation:

We will be using 2 properties of radicals in this simplification (outlined below).

$\sqrt{a*b}=\sqrt{a}* \sqrt{b}$
$\sqrt{a}*\sqrt{a}=a$

<em>Let's simplify this:</em>

$2\sqrt{27} +\sqrt{12} -3\sqrt{3}-2\sqrt{12}\\ =2\sqrt{9*3}+\sqrt{4*3} -3\sqrt{3}-2\sqrt{4*3} \\=2\sqrt{9} \sqrt{3} +\sqrt{4} \sqrt{3}-3\sqrt{3}-2\sqrt{4} \sqrt{3} \\=2(3)\sqrt{3}+(2)\sqrt{3} -3\sqrt{3}-2(2)\sqrt{3} \\ =6\sqrt{3} +2\sqrt{3}-3\sqrt{3}-4\sqrt{3} \\=\sqrt{3}$

First answer choice is right.

5 0

3 years ago

One number is 2 more than another. The difference between their squares is 20. What are the numbers?

ss7ja [257]

Answer:

let x=one number =

x-2= another number

x²- (x-2)²=20

x²-x²-4x+4=20

-4x=20-4

-4x=16

x=16/-4

x=-4

one number is -4

x-2

-4-2

=-6

the another number is -6

4 0

3 years ago

Is the phrase ( Moving back 5 spaces on a game board) negative or positive

Mkey [24]

Answer:

The phrase is negative because you're moving backwards

8 0

2 years ago

In EFGH find the measure of GFH !!!! PLEASE HELP!!!!

stich3 [128]

Answer:

Step-by-step explanation:

Since EF and GH are parallel lines then

∠EGF = ∠GFH = 60° ( Alternate angles )

6 0

3 years ago

What is the setting in chapter 10 of the outsiders book

Mademuasel [1]

Answer:

Well here's the summary of Chapter 10 hope this helps.

Step-by-step explanation:

After Johnny's death Ponyboy wanders alone for hours until a man offers him a ride The man asks Ponyboy if he is okay and tells him that his head is bleeding. ... At home, he finds the greasers gathered in the living room and tells them that Johnny is dead and that Dally has broken down.

So the setting is at Johnny's home.

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2 years ago