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3 years ago

Which of the following are in the correct order from least to greatest?

Mathematics

2 answers:

Cloud [144]3 years ago

7 0

The first option because turn them all into degrees and it says:
54, 60, 90, 120, 255

Rina8888 [55]3 years ago

6 0

Answer:- $\frac{3\pi}{10},60^{\circ},\frac{\pi}{2},\frac{2\pi}{3},255^{\circ}$

Explanation:-

Substitute $\pi=180^{\circ}$ , we get

1. Correct.

$\frac{3\pi}{10},60^{\circ},\frac{\pi}{2},\frac{2\pi}{3},255^{\circ}$

=54°,60°,90°,120°,255°

2. Not correct.

255° is not less than 60.°

3. Not correct.

$\frac{\pi}{2}$ =90° which is not less than 60°.

4. Not correct

255° is not less than 60°.

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Joseph and Hanna are 250 feet apart when they start walking toward one another. They are walking at the same speed, so whenever

Evgen [1.6K]

I dont know the answer

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4 years ago

Need help understanding this question

harkovskaia [24]

Answer:

-9<x≤2

Step-by-step explanation:

The domain is the x values

If we look at the line, we see a closed circle when x=2, so x is less than or equal to 2

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-9<x≤2

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3 years ago

Wires manufactured for use in a computer system are specified to have resistances between .12 and .14 ohms. The actual measured

White raven [17]

Answer: a) 0.9544996

b) 0.9999366

Step-by-step explanation:

Given : The actual measured resistances of wires produced by company A have a normal probability distribution with mean $\mu=0.13$ ohm and standard deviation $s=0.005$ ohm.

Wires manufactured for use in a computer system are specified to have resistances between .12 and .14 ohms.

Let x be the random variable that represents the value of resistance in wires.

Using formula for z-score , $z=\dfrac{x-\mu}{s}$

The z-value at x= 0.12 will be

$z=\dfrac{0.12-0.13}{0.005}=-2$

The z-value at x= 0.14 will be

$z=\dfrac{0.14-0.13}{0.005}=2$

The p-value : $P(-2$

$=0.9772498-(1-P(z$

Hence, the probability that a randomly selected wire from company A’s production will meet the specifications = 0.9544996

b) Sample size : n= 4

Using formula for z-score , $z=\dfrac{x-\mu}{\dfrac{s}{\sqrt{n}}}$

The z-value at x= 0.12 will be

$z=\dfrac{0.12-0.13}{\dfrac{.005}{\sqrt{4}}}=-4$

The z-value at x= 0.14 will be

$z=\dfrac{0.14-0.13}{\dfrac{.005}{\sqrt{4}}}=4$

The p-value : $P(-4$

$=0.9999683-(1-P(z$

The probability that all four in a randomly selected system will meet the specifications = 0.9999366

3 0

4 years ago

3/21 =1/x what’s the value of x

OleMash [197]

The value of x is 7 because 3/21= 7 so it’s the same as 1/7.

6 0

3 years ago

Read 2 more answers

NEED HELP PLEASE ANSWER ASAP! (44)

HACTEHA [7]

Answer:

$-3x^2 * x = -3x^3\\y * y = y^2$

$(-3x^2y)(5xy^2 + xy)\\$

Use F.O.I.L, (First Outer Inner Last) to multiply. Start with -3x^y * 5xy^2

Start with similar terms

$-3x^2 * 5x = -15x^3\\y * y^2 = y^3\\Therefore,\\-15x^3y^2$

Move onto the xy portion of the problem

$-3x^2y(xy)\\$

Start with similar terms

$-3x^2 * x = -3x^3\\y * y = y^2\\Therefore,\\-3x^3y^2$

Combine the two together

$-15x^3y^3 - 3x^3y^2\\$

The answer is Option A

7 0

2 years ago

Read 2 more answers