All categories

3 years ago

(25 points) What is the formula to find the volume of a triangular pyramid?

Mathematics

2 answers:

My name is Ann [436]3 years ago

8 0

Answer:

Use the formula for the volume of a triangular pyramid: V=13Ah , where A = area of the triangular base, and H = height of the pyramid.

sukhopar [10]3 years ago

3 0

Answer:

hello did you find the answer

You might be interested in

How to calculate the decimal form of a given fraction. Please help ASAP mam/sir.

kow [346]

In a fraction, the fraction bar means divided by. So to find the decimal form equivalent of a fraction like 1/4 you need to solve the math problem 1 dived by 4.

1 ÷ 4= 0.25

8 0

3 years ago

In Exercises 10 and 11, points B and D are points of tangency. Find the value(s) of x.<br>

Lemur [1.5K]

In both cases,

$AB^2=AD^2$

(as a consequence of the interesecting secant-tangent theorem)

So we have

10.

$(4x+7)^2=(6x-3)^2$

$16x^2+56x+49=36x^2-36x+9$

$20x^2-92x-40=0$

$5x^2-23x-10=0$

$(5x+2)(x-5)=0\implies\boxed{x=5}$

(omit the negative solution because that would make at least one of AB or AD have negative length)

11.

$(4x^2-18x-10)^2=(x^2+x+4)^2$

$16x^4-144x^3+244x^2+360x+100=x^4+2x^3+9x^2+8x+16$

$15x^4-146x^3+235x^2+352x+84=0$

$(x-7)(3x+2)(5x^2-17x-6)=0\implies\boxed{x=-\dfrac23\text{ or }x=7}$

(again, omit the solutions that would give a negative length for either AB or AD)

7 0

3 years ago

Help me answer this plzzz

Dvinal [7]

Answer:

true

Step-by-step explanation:

8 0

3 years ago

Match the expression on the left with its simplified form on the right. Answer options on the right may be used more than once.

Naily [24]

Answer:

(-5) = -5

|-5| = 5

|5| = 5

-|5| = -5

-|-5| = -5

5 0

3 years ago

Read 2 more answers

What steps would you follow in order to solve the equation?

Ira Lisetskai [31]

Answer:

Step-by-step explanation:

Step one:

given the expression w/8 - 4 = 20

the first operation is to isolate the term that has w by adding 4 to both sides

w/8 - 4+4 = 20+4

w/8 = 16

Required

the value of w

Step two:

the next step is to cross multiply

w=16*8

w=128

6 0

3 years ago