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vlabodo [156]
3 years ago
7

Which of the following is equivalent to 30^1/2

Mathematics
1 answer:
Nikitich [7]3 years ago
4 0

Answer:

30>1/2

Step-by-step explanation:

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Colt1911 [192]
You can use models to estimate percent questions by estimating the locations of 50%, 75%, 40%, 6%, and 65% on the model.. 

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3 years ago
The pressure at sea level is 11 atmosphere and increases at a constant rate as depth increases. When Sydney dives to a depth of
Liono4ka [1.6K]

Answer:

The function p(x) = 0.1x+1 ,   where  x is the depth in meters.

Step-by-step explanation:

As per the statement: The pressure at sea level is 1 atmosphere and increases at a constant rate as depth increases.

Then, we have the two points i,e (0, 1) and (23, 3.3).

An equation of the line is in the form of y=mx+b where m is the slope or rate of the line and b is the y-intercept.

Let x represents the depth in meters and p(x)= y represents the pressure in atmosphere.

Calculate slope of the line:

Slope of line(m) is given by:

m = \frac{y_2-y_1}{x_2-x_1}

Substitute the given point we have;

m = \frac{3.3-1}{23-0} = \frac{2.3}{23} = 0.1

Then, our equation of line become:

y = 0.1x + b                           .....[1]

To solve for b;

Substitute the point (0, 1)  in [1];

1 = 0.1(0)+b

1 = b

Our equation for this line become: y = 0.1x +1

Now, we write this for x as a function of p,

i.e, p(x) = 0.1x + 1

Then, the function formula become;

p(x) = 0.1x+1 where x is the depth in meters.

6 0
3 years ago
A researcher wished to compare the effect of two stepping heights (low and high) on heart rate in a step-aerobics workout. A col
Alinara [238K]

Answer:

The answer is "between 0.10 and 0.05".

Step-by-step explanation:

For sample 1:

n_1 = 25\\\\\bar{x_1} = 90.00\\\\ s_1 = 9\\\\

For sample 2:

n_2 = 25\\\\ \bar{x_2} = 95.08\\\\ S_2 = 12\\\\

Calculating the null and alternative hypotheses:

H_O : \mu_1 = \mu_2 \\\\ H_Q : \mu_1  

Calculating the test statistic:

Z= \frac{90-95.08}{ \sqrt{\frac{9^2}{25}+\frac{12^2}{25}}} \\\\ =\frac{-5.08}{ \sqrt{\frac{81}{25}+\frac{144}{25}}}\\\\=\frac{-5.08}{ \sqrt{\frac{81+144}{25}}}\\\\=\frac{-5.08}{ \sqrt{\frac{225}{25}}}\\\\=\frac{-5.08}{ \frac{15}{5}}\\\\=\frac{-5.08}{3}\\\\= -1.693

Calculating the conservative degrees of freedom:

DF = min (n_1 -1, n_2 - 1) = min(25-1, 25-1) = 24

by using Excel the p-value for left tailed test and for test statistic will be -1.693 with DF = 24.

\to p-value = TDIST(1.693, 24, 1) = 0.0517\ \ \ \  i.e, \bold{0.05 < p-value < 0.10}

5 0
3 years ago
What expression is equivalent to −24x+72?
s2008m [1.1K]

Step-by-step explanation:

the answer is 4. you factor the equation since 24.

7 0
3 years ago
How do I solve this?
Aleksandr-060686 [28]
First you have to set up your equation. 5x+80 and x+15. 
8 0
3 years ago
Read 2 more answers
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