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3 years ago

Which graph represents exponential decay?

Mathematics

2 answers:

Firdavs [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Edge 2020 - 2021

Good luck on your quiz :)

sattari [20]3 years ago

5 0

Answer:

Step-by-step explanation:

The picture below shows the actual answer. This is the same quiz and is neither of the two answer shown.

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What are the zeros of the quadratic function f(x) = 2x2 – 10x – 3?

Natasha2012 [34]

Answer:

$x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}$ are zeroes of given quadratic equation.

Step-by-step explanation:

We have been a quadratic equation:

$2x^2-10x-3$

We need to find the zeroes of quadratic equation

We have a formula to find zeroes of a quadratic equation:

$x=\frac{b^2\pm\sqrt{D}}{2a}\text{where}D=\sqrt{b^2-4ac}$

General form of quadratic equation is $ax^2+bx+c$

On comparing general equation with b given equation we get

a=2,b=-10,c=-3

On substituting the values in formula we get

$D=\sqrt{(-10)^2-4(2)(-3)}$

$\Rightarrow D=\sqrt{100+24}=\sqrt{124}$

Now substituting D in $x=\frac{b^2\pm\sqrt{D}}{2a}$ we get

$x=\frac{(-10)^2\pm\sqrt{124}}{2\cdot 2}$

$x=\frac{100\pm\sqrt{124}}{4}$

$x=\frac{100\pm2\sqrt{31}}{4}$

$x=\frac{50\pm\sqrt{31}}{2}$

Therefore, $x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}$

5 0

3 years ago

Read 2 more answers

What is 85% converted to a fraction?

Ksju [112]

The answer to the question is 85/100

6 0

3 years ago

5/2x-3 is this a monomial, binomial, or trinomial

Serga [27]

Its a binomial. There are two terms

6 0

3 years ago

Can somebody help me solve this?

Nookie1986 [14]

Answer:

z = 3.2 units

Step-by-step explanation:

sin 76°/z = sin 51°/2.6

cross-multiply to get:

z·(sin 51°) = 2.6·(sin 76°)

z = 2.6·(sin 76°) ÷ (sin 51°)

z = 3.2

3 0

3 years ago

Please help ASAP. I really need this it is almost due. Please give me the right answer.

IceJOKER [234]

A and D
Put 3 in the equations and solve

5 0

2 years ago