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4 years ago

HURRY PLEASE I really need this to pass my class

Mathematics

1 answer:

lisabon 2012 [21]4 years ago

6 0

Problem 1.

$\sqrt{\dfrac{2160x^8}{60x^2}} =$

$= \sqrt{36x^6}$

$= 6x^3$

Problem 2.

$\sqrt{400x^{100}} =$

$= 20x^{50}$

Problem 3.

$\sqrt{100x^{36}} =$

$= 10x^{18}$

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A taxi service charges an initial $5 fee, plus $2 per mile driven. A Write an equation to represent the situation. B. How much i

alina1380 [7]

C=2m+5

c=2(150)+5
c=300+5
c=$350

7 0

3 years ago

Read 2 more answers

For the real-valued functions, find the composition and specify its domain using interval notation.

Helen [10]

Answer:

Composition: $f(x)\,^o\,h(x)=4\,\sqrt{x+4} -1$

Domain = { $x\,/\,x\geq \,-4$ }

Step-by-step explanation:

Given

$f(x)=4\,x-1\,\,\, and \,\,\, h(x)=\sqrt{x+4}$

The requested composition becomes:

$f(x)\,^o\,h(x)=f(h(x))\\f(x)\,^o\,h(x)=f(\sqrt{x+4} )\\f(x)\,^o\,h(x)=4\,\sqrt{x+4} -1$

Then the Domain consists of all Real x-values for which the function is defined. In this case, the function is defined for all x-values for which the square root is defined, that is all x values for which:

$x+4\geq \,0$ (so the square root is defined in the Real number system)

This means $x\geq \,-4$

The Domain is then all the Real x-values such that $x\geq \,-4$

6 0

3 years ago

The probabilities that a batch of 4 computers will contain 0, 1, 2, 3, and 4 defective computers are 0.4521, 0.3970, 0.1307, 0.0

kicyunya [14]

Answer:

The standard deviation of given probability distribution is 0.767.

Step-by-step explanation:

We are given the following information in the question:

X: 0 1 2 3 4

P(x): 0.4521 0.3970 0.1307 0.0191 0.0010

Formula:

$\text{Mean} = \sum X.P(x)\\= 0(0.4521) + 1(0.3970) + 2(0.1307) + 3(0.0191) + 4(0.0010)\\= 0.7197$

$\mu = 0.7197$

Formula:

$\text{Variance} = \sum (X-\mu)^2E(x)\\= (0-0.7197)^2(0.4521)+(1-0.7197)^2(0.3970)+(2-0.7197)^2(0.1307)+(3-0.7197)^2(0.0191)+(4-0.7197)^2(0.0010) \\=0.587$

$\text{Standard Deviation} = \sqrt{\text{Variance}}\\= \sqrt{0.587} = 0.767$

The standard deviation of given probability distribution is 0.767.

3 0

4 years ago

Solve for x 5^x-2=2^x

12345 [234]

Answer:

x ≈ 0.82476307

Step-by-step explanation:

6 0

3 years ago

Which graph shows the function<br> 4y - x= 0?

Otrada [13]

Answer:

y=x/4

Step-by-step explanation:

add x to the other side of your equation so: 4y = x

now divide both sides by 4 so your y is isolated: y=x/4

6 0

3 years ago