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3 years ago

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What is the volume of a right triangular pyramid whose base is 3 meters on each side and whose altitude is 4 meters? A. 15.6 m3

B. 4.5 m3 C. 3.9 m3 D. 5.2 m3

2 answers:

BARSIC [14]3 years ago

5 0

"<span>V = 1/3AH where A = area of the </span>triangle<span>base, and H = height of the </span>pyramid<span> or the distance from the </span>pyramid's<span> base to the apex." (:</span>

kkurt [141]3 years ago

5 0

I attached it a picture, hope this helps.

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Help me please !<br> 4,5 and 6

andreev551 [17]

9514 1404 393

Answer:

4a. ∠V≅∠Y

4b. TU ≅ WX

5. No; no applicable postulate

6. see below

Step-by-step explanation:

<h3>4.</h3>

a. When you use the ASA postulate, you are claiming you have shown two angles and the side between them to be congruent. Here, you're given side TV and angle T are congruent to their counterparts, sides WY and angle W. The angle at the other end of segment TV is angle V. Its counterpart is the other end of segment WY from angle W. In order to use ASA, we must show ...

∠V≅∠Y

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b. When you use the SAS postulate, you are claiming you have shown two sides and the angle between them are congruent. The angle T is between sides TV and TU. The angle congruent to that, ∠W, is between sides WY and WX. Then the missing congruence that must be shown is ...

TU ≅ WX

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<h3>5.</h3>

The marked congruences are for two sides and a non-included angle. There is no SSA postulate for proving congruence. (In fact, there are two different possible triangles that have the given dimensions. This can be seen in the fact that the given angle is opposite the shortest of the given sides.)

"No, we cannot prove they are congruent because none of the five postulates or theorems can be used."

__

<h3>6.</h3>

The first statement/reason is always the list of "given" statements.

1. ∠A≅∠D, AC≅DC . . . . given

2. . . . . vertical angles are congruent

3. . . . . ASA postulate

4. . . . . CPCTC

8 0

3 years ago

H(2)=2^2-5(2)+7<br> find the valuee

umka21 [38]

Answer:

h(2) = 1

Step-by-step explanation:

2^2 is 4. 5(2) is 10. now we have 4 - 10 + 7. -6 + 7 = 1.

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3 years ago

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Help please if u can

GrogVix [38]

Answer:

x=6

Step-by-step explanation:

this is a property

(8x-4)+(3x+17)=17x-23

11x+13=17x-23

23+13=6x

36=6x

x=6

4 0

3 years ago

John needs to cut three strips of woods, 25.5 cm, 15.3cm and 9.25cm long. He has a strip that is 72 cm long. How long will lefto

horsena [70]

Add 25.5, 15.3, 9.25 all together and subtract it from 72. The answer is 21.95

7 0

3 years ago

A spinner is divided into six equal-sized sectors labeled 1 through 6. Dwayne spins this spinner 12 times. Let X

slavikrds [6]

Answer:

b) μ = 2 and σ = 1.29

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given that the A spinner is divided into six equal-sized sectors labelled 1 through 6</em>

<em>Given that the probability of labelled '1'</em>

<em> </em> $p = \frac{1}{6}$ =0.16

<em> q = 1-p = 1- 0.16 = 0.84</em>

Let 'X' be a random variable in binomial distribution

The mean of the binomial distribution

μ = n p

μ = $12 (\frac{1}{6} ) = 2$

<em>The mean of the binomial distribution = 2</em>

<u><em>Step(ii):-</em></u>

The standard deviation of X

σ $= \sqrt{npq}$

σ = $\sqrt{12(0.16)(0.84}$

σ = $1.269$

<em>The standard deviation of the binomial distribution</em>

<em> </em> σ = $1.269$

<u><em></em></u>

<u><em></em></u>

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3 years ago

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