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3 years ago

Please help me with 16-18 ty!!

Mathematics

1 answer:

jonny [76]3 years ago

3 0

16: B; irrational number, real

17: C; whole, integer, rational, real

18: B; real, rational, integer

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When 3 is subtracted from one third of a number less than 6. Which inequality and solution represents this sitution?

kenny6666 [7]

Answer:

1/3(n) - 3 < 6; n < 27

Step-by-step explanation:

" 3 subtracted from one third of a number"

= 1/3(n) - 3

given that this is less than 6:

1/3(n) - 3 < 6

1/3(n) < 6 +3

1/3(n) < 9

n < 27

5 0

3 years ago

Read 2 more answers

Which of the following describe an angle with a vertex at A?<br> Check all that apply.

frutty [35]

Answer:

C and D

Step-by-step explanation:

In naming an angle using 3 letters the letter denoting the vertex is always located in the middle of the 3 letters

Thus ∠BAC and ∠CAB

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2 years ago

The width of a golden rectangle is 15 feet. Find the perimeter of the rectangle to the nearest foot.

topjm [15]

Answer:

79 ft

Step-by-step explanation:

Golden rectangle side ratios 1 : (1+sqrt5 )/2

(approx 1: 1.618)

15 + 15 + 2*15*1.618 = <u>~79 ft </u>

BUT perhaps the 15 is the 1.618 side

15/1.618 + 15/1.618 + 15 + 15 ~ 49 feet

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2 years ago

A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c

allochka39001 [22]

Answer:

a) The test statistic is $z = -2.51$

b) The pvalue is 0.0060.

Step-by-step explanation:

Question a:

Ha: pB < pNY

This means that the alternate hypothesis is rewritten as:

$H_a: p_{B} - p_{NY} < 0$

While the null hypothesis is:

$H_0: p_{B} - p_{NY} = 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis and s is the standard error

pB = 0.581, pNY = 0.832

This means that $X = 0.581 - 0.832 = -0.251$

0 is tested at the null hypothesis:

This means that $\mu = 0$

Standard error = 0.1

This means that $s = 0.1$

Test statistic:

$z = \frac{X - \mu}{s}$

$z = \frac{-0.251 - 0}{0.1}$

$z = -2.51$

The test statistic is $z = -2.51$

Question b:

The pvalue is the probability of finding a proportion less than -0.251, that is, a difference of at least 0.251, which is the pvalue of Z = -2.51.

Looking at the z-table, Z = -2.51 has a pvalue of 0.0060

The pvalue is 0.0060.

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3 years ago

Adelle solved the equation 4x/7-6=-20 as shown.

yarga [219]

Step-by-step explanation:

isnt is supposed to be x = -5

4x/7-6 = -20

4x/1 = -20

4x =-20

x = -5

6 0

2 years ago