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3 years ago

Can someone please tell me the formula volume of a rectangular pyramid? Plz

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

7 0

The formula is v = lwh / 3

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3х — у+ 2x = 4 6x — 2y + 4z = — 8 2x — у+3z = 10

abruzzese [7]

1. 5x-y=4
2. -4/3+1/3y-2/3z
3. x=5+1/2y -3/2z
And/or the answer to the whole thing could be that the statement is incorrect.

8 0

4 years ago

Consider the following expression 2y+1+9x Select all of the true statements below.

Harman [31]

Answer:

2y+1+9x is written as a product of three factors

5 0

2 years ago

16: Find the coordinates of the foci and the vertices, the eccentricity, the length of the latus rectum of the Hyperbola y^2-16x

Morgarella [4.7K]

Answer:

Foci $(0,\pm\frac{\sqrt{17}}{4})$

Vertices: $(0,\pm 1)$

Eccentricity, e= $\frac{\sqrt{17}}{4}$

Length of latus rectum= $\frac{1}{8}$

Step-by-step explanation:

We are given that

$y^2-16x^2=1$

$y^2-\frac{x^2}{(\frac{1}{4})^2}=1$

The equation of hyperbola is along y-axis because y is positive

Compare the equation with

$y^2/a^2-x^2/b^2=1$ (Along y-axis)

We get

a=1, b=1/4

$a^2+b^2=c^2$

$1+\frac{1}{16}=c^2$

$\frac{16+1}{16}=c^2$

$c^2=\frac{17}{16}$

$c=\pm \frac{\sqrt{17}}{4}$

Therefore,

The coordinates of foci= $(0,\pm c)=(0,\pm\frac{\sqrt{17}}{4})$

The coordinated of vertices= $(0,\pm a)=(0,\pm 1)$

Eccentricity, e=c/a

$e=\frac{\frac{\sqrt{17}}{4}}{1}=\frac{\sqrt{17}}{4}$

Length of latus rectum= $\frac{2b^2}{a}$

Length of latus rectum= $2\times \frac{1}{16}=\frac{1}{8}$

3 0

3 years ago

How do you add integers with the same sign?

erastovalidia [21]

If its negative to negative the number will be positive if its two positives I will be positive and the higher number of the problem decides weither its positive or negative then u add like normal

7 0

3 years ago

15. Pick the best option to describe vertical angles

ella [17]

C. They are equal to each other I think

6 0

3 years ago