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3 years ago

Which graph represents a reflection of f(x) = 2(0.4)x across the y-axis?

Mathematics

2 answers:

aleksley [76]3 years ago

7 0

Answer:

The graph in the attached figure

Step-by-step explanation:

we know that

In a reflection across the y-axis the y-coordinate remains the same, but the x-coordinate is transformed into its opposite

we have

$f(x)=2(0.4)^{x}$

The reflection of f(x) across the y-axis is equal to the function g(x)

$g(x)=2(0.4)^{-x}$

The graph in the attached figure

11111nata11111 [884]3 years ago

7 0

Answer:

i think its a, but dont be mad if im rong.

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=2%20%5Ctimes%202" id="TexFormula1" title="2 \times 2" alt="2 \times 2" align="absmiddle" class

EastWind [94]

4 (i literally had to think about this cause i thought it was too easy )

6 0

3 years ago

Use the Pythagorean theorem to find the unknown side of the right triangle.

Nesterboy [21]

The length of hypotenuse is 39.

Step-by-step explanation:

Given,

Vertical side = a = 15

Horizontal side = b = 36

Hypotenuse = c

Using pythagorean theorem

$a^2+b^2=c^2\\(15)^2+(36)^2=c^2\\225+1296=c^2\\1521=c^2\\c^2=1521$

Taking square root on both sides

$\sqrt{c^2}=\sqrt{1521}\\c=39$

The length of hypotenuse is 39.

Keywords: square root, addition

Learn more about square roots at:

#LearnwithBrainly

8 0

3 years ago

Can you do the full work

Illusion [34]

Answer:

what full work.Everyone wants to know so we can help you.

Step-by-step explanation:

5 0

2 years ago

5/6 and 7/9 written with a common denominator.

sattari [20]

Bbsbsnnjnjsjsjjsjskkks

7 0

2 years ago

Read 2 more answers

The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard deviation 1.1. This distribution

cluponka [151]

Answer:

Step-by-step explanation:

Hello!

The definition of the Central Limi Theorem states that:

Be a population with probability function f(X;μ,δ²) from which a random sample of size n is selected. Then the distribution of the sample mean tends to the normal distribution with mean μ and variance δ²/n when the sample size tends to infinity.

As a rule, a sample of size greater than or equal to 30 is considered sufficient to apply the theorem and use the approximation.

X[bar]≈N(μ;σ²/n)

If the variable of interest is X: the number of accidents per week at a hazardous intersection.

There is no information about the distribution of this variable, but a sample of n= 52 weeks was taken, and since the sample is large enough you can approximate the distribution of the sample mean to normal. With population mean μ= 2.2 and standard deviation σ/√n= 1.1/√52= 0.15

I hope it helps!

5 0

2 years ago