All categories

3 years ago

Please help me on this one

Mathematics

1 answer:

NikAS [45]3 years ago

3 0

Answer:

55.4 in³

Step-by-step explanation:

The formula for the volume of a pyramid can be found:

V = $\frac{1}{3}Bh$ , where B = area of the base and h = height of the pyramid

Since the base is a triangle, we need to use the formula for the area of a triangle:

A = $\frac{1}{2}bh$ = $\frac{1}{2}(5.7)(6.2)=17.67in^{2}$

Next, multiply the area of the base by the height of the pyramid:

17.67 x 9.4 = 166.098 ÷ 3 ≈ 55.4 in³

You might be interested in

a square garden with a side of 150m has a square swimming pool in the very center with a side length of 25m calculate the area o

marta [7]

Answer: 21,875 sqm

Step-by-step explanation:

Step 1:

Find the gross area of the garden.

Square 150m = 22,500 sqm.

Step 2:

Find the area of the pool.

Square 25m = 625 sqm.

Step 3:

Subtract the area of the pool from the gross area of the garden

to find the net area of the garden.

22,500 - 625 = 21,875 sqm.

Warning:

Do not subtract the side length of the swimming pool from the side length

of the garden before squaring.

7 0

3 years ago

mark purchased a new motorcycle for $23,000. F the value of the motorcycle decreases by 151 each year, what will it be worth in

HACTEHA [7]

151 * 5 = 755
23,000 - 755 = 22,245

It'll be worth $22,245 in 5 years.

4 0

3 years ago

For the annual rate of depreciation of 31%, find the corresponding decay factor

Alex Ar [27]

Eaqu de la suósi porque etas luncio

3 0

3 years ago

Can u please answer all three and in 20-30 minutes please or quicker if u can please I just not understanding the math they are

Jlenok [28]

18). 16:80 is the ratio but in simplest form is; 5:0

19). 36:54 is the ratio but in simplest form is; 2:3

20). 12:24 is the ratio but in simplest form is; 1:2

hope that helps:D

5 0

3 years ago

A student answers a multiple-choice examination question that offers four possible answers. Suppose the probability that the stu

Nitella [24]

Answer: 0.9730

Step-by-step explanation:

Let A be the event of the answer being correct and B be the event of the knew the answer.

Given: $P(A)=0.9$

$P(A^c)=0.1$

$P(B|A^{C})=0.25$

If it is given that the answer is correct , then the probability that he guess the answer $P(B|A)= 1$

By Bayes theorem , we have

$P(A|B)=\dfrac{P(B|A)P(A)}{P(B|A)P(A)+P(C|A^c)P(A^c)}$

$=\dfrac{(1)(0.9)}{(1))(0.9)+(0.25)(0.1)}\\\\=0.972972972973\approx0.9730$

Hence, the student correctly answers a question, the probability that the student really knew the correct answer is 0.9730.

7 0

3 years ago

Please help me on this one ​

Please help me on this one