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2 years ago

How to Right 8.517 in two other forms

1 answer:

5 0

8.517 can be written as an improper fraction by putting it over one! (8517/1000) or as a mixed number (8 and 517/1000

Hoped this helped! :)

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Cual es el valor de x en 5x+5=3x+27

zzz [600]

11 is the value of x. hope this helps you

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2 years ago

Find the vertex of this quadratic

mihalych1998 [28]

Answer:

The vertex of the quadratic equation is the point (4,2)

Step-by-step explanation:

we know that

The figure show a vertical parabola open downward

The vertex represent the maximum point of the graph

Looking at the graph

The maximum point of the graph is (4,2)

therefore

The vertex of the quadratic equation is the point (4,2)

see the attached figure to better understand the problem

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2 years ago

B с A Find the length of “c” using the Pythagorean Theorem.

cupoosta [38]

5.8
a2+b2=c and the once you have c which was
34 you find the square root of 34 which is 5.8 i’m kind of positive that i’m right

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2 years ago

35. In a simple random sample of 25 high school students, the sample mean of the SAT scores was 1450, and the sample variance wa

Tatiana [17]

Answer:

$1450-2.0\frac{30}{\sqrt{25}}=1450-12$

$1450+2.0\frac{30}{\sqrt{25}}=1450+12$

And the best option would be:

c. 1450 +/- 12

Step-by-step explanation:

Information provided

$\bar X=1450$ represent the sample mean for the SAT scores

$\mu$ population mean (variable of interest)

$s^2 = 900$ represent the sample variance given

n=25 represent the sample size

Solution

The confidence interval for the true mean is given by :

$\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (1)

The sample deviation would be $s=\sqrt{900}= 30$

The degrees of freedom are given by:

$df=n-1=2-25=24$

The Confidence is 0.954 or 95.4%, the value of $\alpha=0.046$ and $\alpha/2 =0.023$ , assuming that we can use the normal distribution in order to find the quantile the critical value would be $z_{\alpha/2} \approx 2.0$

The confidence interval would be

$1450-2.0\frac{30}{\sqrt{25}}=1450-12$

$1450+2.0\frac{30}{\sqrt{25}}=1450+12$

And the best option would be:

c. 1450 +/- 12

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2 years ago

Fractions equivalent to -2/-3

Amanda [17]

Answer:

2/3, 4/6, -4/-6... gtg sorry if you needed more

Step-by-step explanation:

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2 years ago