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2 years ago

Imágenes de angulos segun su posicion

Mathematics

1 answer:

Katen [24]2 years ago

7 0

Imágenes de angulos segun su posicion
plsss mark as brilliant

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2/9 x s = 1/2 I don’t know

WITCHER [35]

Answer:

$\frac{9}{4}$

Step-by-step explanation:

$\frac{2}{9} \times s = \frac{1}{2} \\ \\ \frac{2s}{9} = \frac{1}{2} \\ cross \: multiply \\ 9 \times 1 = 2s \times 2 \\ 9 = 4s \\ divivde \: both \: sides \: by \: 4 \\ \frac{9}{4} = \frac{4s}{4} \\ s = \frac{9}{4}$

hope you understand

3 0

2 years ago

A random sample of 121 students from the University of Oklahoma had a sample mean ACT score of 23.4 with a sample standard devia

Grace [21]

Answer:

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 121

Sample mean = 23.4

Sample standard deviation = 3.65

Level of significance = 0.05

Degree of freedom

$= n - 1 = 120$

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Calculation of critical value:

$t_{critical}\text{ at degree of freedom 120 and}~\alpha_{0.05} = \pm 1.9799$

Putting the values, we get,

$23.4\pm 1.9799(\dfrac{3.65}{\sqrt{121}} )\\\\ = 23.4 \pm 0.6569\\\\ = (22.7431 ,24.0569)\approx (22.74,24.06)$

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

5 0

2 years ago

Plz help!!!!! <br> ctc math

bija089 [108]

Answer:

7,13,37,55,103

Step-by-step explanation:

y = 5 + 2x^2

if x =1

y = 5 + 2(1)^2

1^2 = 1

2 x 1 = 2

y=5 + 2 or y = 7

you substatute each one in for x to solve for y

5 0

2 years ago

Which shows the expression (4a ^ 5 * b) ^ 3 simplified?

marshall27 [118]

(4a^5*b)^3 is simplified to
= 64a^15b^3

6 0

2 years ago

Ssdfdsiufhdsifhdsjfdsi?

Kitty [74]

What is your question about that?

6 0

2 years ago

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Imágenes de angulos segun su posicion​

Imágenes de angulos segun su posicion