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4 years ago

Which expression represents the volume of the pyramid?

Mathematics

1 answer:

Arada [10]4 years ago

6 0

Answer:

$V=\frac{1}{3}(n^2)(n-1)\ units^3$

Step-by-step explanation:

we know that

The volume of the pyramid is equal to

$V=\frac{1}{3}Bh$

where

B is the area of the base of pyramid

h is the height of the pyramid

The area of the square base B is

$B=n^2\ units^2$

we have

$h=(n-1)\ units$

substitute the given values in the formula of volume

$V=\frac{1}{3}(n^2)(n-1)\ units^3$

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Which statement is true about hours and seconds?

Leto [7]

Answer:

choice 1) An hour is 3600 times as long as a second

Step-by-step explanation:

60 x 60 = 3600

7 0

3 years ago

Read 2 more answers

How do i find the slope of 6x - 12y = 36

kondaur [170]

<span> Slope = 1.000/2.000 = 0.500 x-intercept = -6/1 = -6.00000<span> y-intercept = 6/2 = 3</span></span>

8 0

4 years ago

Which is the correct null hypothesis for testing if the independent variable is a significant predictor of the dependent variabl

azamat

Answer:

Option A) $H_0: \beta_1 = 0$

Step-by-step explanation:

The regression equation gives us a relation between the independent and the dependent variable.

The regression equation with 1 independent variable can be written as:

$y = \beta_0 + \beta_1x\\\text{where } \beta_0 \text{ is the y intercept and } \beta_0 \text{ is the coefficient of x or the independent variable.}$

The hypothesis tells us whether the dependent variable have a significant relationship with the independent variable or not.

We test that there is no effect of the particular dependent variable on the predicted variable.

We carry this hypothesis with the null hypothesis that there is no significant relationship between the dependent variable and the independent variable

Thus, we check whether the coefficient of x is zero or not.

The null hypothesis can be designed as:

$H_0: \beta_1 = 0$

The p-value for each term tests the null hypothesis that the coefficient is equal to zero (no effect).

Option A) $H_0: \beta_1 = 0$

3 0

3 years ago

A perimeter increased by four is twenty eight.<br> (As an equation)

Ksenya-84 [330]

Answer:

P+4=28, meaning that the original perimeter was 24

Step-by-step explanation:

Let's call the perimeter P.

Converting the words into an equation, you get:

P+4=28

Now, you can subtract 4 from both sides:

P+4-4=28-4

P=24

Hope this helps!

6 0

3 years ago

In the figure below, angle y and angle x form vertical angles. Angle y forms a straight line with the 60° angle and the 70° angl

nirvana33 [79]

The equation that solve for x is as follows;

70 + 60 + x = 180

<h3 /><h3>How to find an angle?</h3>

The equation that can be used to find the measure of angle x can be found as follows:

60 + 70 + y = 180

Therefore,

130 + y = 180

subtract 130 from both sides

130 - 130 + y = 180 - 130

y = 50°

70 + 60 + x = 180

130 + x = 180

x = 180 - 130

x = 50°

x and y are vertically opposite angles.

learn more on angles here: brainly.com/question/24460838

#SPJ1

4 0

2 years ago