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Brrunno [24]
2 years ago
10

A solid right triangle pyramid has a regular hexagonal base with an area of 5.2 cm^2 and height of h cn. Which expression repres

ents the volume of the pyramid?
A. 1/5(5.2)h cm^3.

B. 1/5h(5.2)h cm^3

C.1/3(5.2)h cm^3

D.1/3h(5.2)h cm^3
Mathematics
2 answers:
Alecsey [184]2 years ago
5 0
Volume of a pyramid = (1/3)*(area Base)*height
Volume of a pyramid = (1/3)*(5.2)*h cm³

Answer is <span>C.1/3(5.2)h cm³.</span>
alex41 [277]2 years ago
4 0

Answer:  C. \dfrac{1}{3}(5.2)h\ cm^3

Step-by-step explanation:

We know that the volume of a pyramid is given by :-

\text{Volume}=\dfrac{1}{3}\times\text{Base area}\times\text{Height}

Given : Base Area = 5.2\ cm^2

Height = h cm

⇒\text{Volume}=\dfrac{1}{3}\times5.2\times h

Then, the expression represents the volume of the pyramid will be :-

\dfrac{1}{3}(5.2)h\ cm^3

Hence, the correct answer is : Option (C)

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Deon plans to ride a 15-mi bicycle trail. If his average speed is 20 mi/h, which equation can he use to find the time t, in hour
fredd [130]

Answer:

The equation that Deon can use to find the time 't' it takes for his ride is t=distance/rate or t=15/20 or 0.75 hours.  

Step-by-step explanation:

The relationship between distance, rate and time is a common formula represented by d=rt where 'd'=distance, 'r'=rate and 't'=time.  Distance is typically calculated in miles, where rate is given in miles/hour and time is the hours.  In this case, because we are looking for 't', we would simply plug in the values of distance and rate to get 20=15t.  In order to solve for 't', we need to use inverse (opposite) operations, dividing both sides by 15 and getting 0.75 hours for 't'.  

8 0
2 years ago
Read 2 more answers
An insurance adjuster processes the claims of six policy holders in an eight hour work day. The adjuster uses $5 in gasoline and
Bad White [126]

Answer:

D

Step-by-step explanation:

Labor productivity is is measured per hours.

Hence, the work he does [amount of claims] will be distributed amongst the amount of hours he works. The amount of dollar he uses <em>doesn't matter for labor productivity.</em>

<em />

Thus, his work is 6 claims. He does that is 8 hours. So claim/hr is:

6/8 = 0.75 claims per hour

Answer choice D is right.

6 0
2 years ago
Fresh pond has a population of 854 and is increasing by 3 people per year. Strawberry has a population of 427 and is increasing
lawyer [7]

Answer:

  • Fresh Pond: p(t) = 854 +3t
  • Strawberry: p(t) = 427·1.10^t

Step-by-step explanation:

(a) The general term of an arithmetic sequence is ...

  an = a1 + d(n -1)

If we let the sequence of population numbers be modeled by this, and we use t for the number of years, we want n=1 for t=0, so n = t+1 and we have ...

  p(t) = 854 +3(t+1-1)

  p(t) = 854 +3t

__

(b) The general term of a geometric sequence is ...

  an = a1·r^(n-1)

were r is the common ratio. Here, the multiplier from one year to the next is 1+10% = 1.10. Again, n=t+1, so the population equation is ...

  p(t) = 427·1.10^(t+1-1)

  p(t) = 427·1.10^t

3 0
2 years ago
Chadwick bought 50 shares of Chipotle stock on Nov 1, 2016 for $396.33 share. He sold the shares four years later, with the per
scoray [572]

Answer:

Step-by-step explanation:

Given the following :

Number of shares purchased (2016) = 50

Purchase price of shares $396.33 per share

Closing price per share four years later = $778.38

A) What did Chadwick pay for all of the shares in 2016?

Purchase price per share × number of shares.

$396.33 × 50 = $19,816.50

B) What was the closing value of all of the shares four years later?

Closing price per share × number of ahaf

=$778.38 × 50

= $38,919

C.) Profit on stock :

$(38,919 - 19,816.50)

= $19,102.5

D) What is his rate of return on his shares when he sold them?

(Current Purchase - initial value) /current price

(778.3 - 396.33) / 396.33

= (381.97 / 396.33) 100%

= 0.9637675

=

3 0
2 years ago
Bald-faced hornets have a hive that is approximately cone-shaped, as shown in the image. One such hive has a radius of 15 inches
sineoko [7]

Answer:

Volume of the hive is 4712.4 square inches.

Step-by-step explanation:

Since hive has the shape of a cone with radius = 15 inches and height = 20 inches

Therefore, volume of the given cone = \frac{1}{3}(\text{Area of the base})\times \text{height}

Area of the circular base = πr²

Area = π(15)²

        = 225π

Volume of the cone = \frac{1}{3}(225\pi )\times{20}

                                 = 1500π

                                 = 4712.39

                                 ≈ 4712.4 square inches

Therefore, volume of the hive is 4712.4 square inches.

7 0
2 years ago
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