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3 years ago

12

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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Can someone help i wil mark branliest to anyone who gets this right

maks197457 [2]

Answer:

56 deceased by 14% is 48.16

262 decreased by 39% is 159.82

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3 years ago

A farm has sheep,pigs and cows at a ratio of 8:3:2. There are 10 cows, how many pigs and sheep are there

dedylja [7]

15 pigs and 40 sheep

10 cows is equivalent to 2 parts of the ratio, hence

$\frac{10}{2}$ = 5 ← 1 part of the ratio, hence

8 parts = 8 × 5 = 40 ← number of sheep

3 parts = 3 × 5 = 15 ← number of pigs

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3 years ago

with the exception of the first house, all the houses on sequence lane have an address whose numerical portions are greater than

yanalaym [24]

Answer:

The address of Ainsley is 24 and that of Lane is 25.

Step-by-step explanation:

All the houses on sequence lane have an address whose numerical portions are greater than that of the prior house.

Now, if Ainsley and Lane are next-door neighbors and the sum of the numerical portions of their addresses is 49.

Let the Ainsley has the address with numeric portion x, then Lane has the address with numeric portion x + 1.

Therefore, x + (x + 1) = 49

⇒ 2x = 48

⇒ x = 24

So, the address of Ainsley is 24 and that of Lane is 25. (Answer)

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3 years ago

If Samuel orders four DVDS each dvd costs 9.99 he has 20% discount code and the sales tax is 6.75% what is the total cost

arsen [322]

9.99*4=39.96

39.96*.20=7.992 39.96-7.992=31.968

31.968*.0675=2.1578 31.968+2.1578=
$34.13

5 0

3 years ago

Mary has a collection of nickels and quarters for a total of $4.90. If she has 42 coins in total, how many of each kind are ther

damaskus [11]

Answer:

14 quarters and 28 nickels

Step-by-step explanation:

System of Equations where x = number of quarters and y = number of nickels

(1) equation with value of each coin

0.25(x)+0.05(y) = 4.90

(2) total number of coins

x + y = 42

Solve system of equations using either substitution or elimination

(elimination multiplying equation 2 by -0.5)

.25(x) + 0.05(y) = 4.90

-0.05(x) - 0.05(y) = 42 * (-0.05)

(3) Resulting equation

.20(x) = 2.8

x = 14

plug x into equation 2

14 + y = 42

y = 28

There are 14 quarters and 28 nickels in Mary's collection.

5 0

3 years ago