A regular hexagonal pyramid whose base perimeter is 60cm has an altitude of 30cm. The volume of the pyramid is??

Answers

Answer 1

Answer: $altitude : \ H= 30 \ cm\n \n base \ perimeter = 60 \ cm\n \n P=6s \n \n60=6s \ \ /:6\n \ns=10 \ cm \n \n$

$Volume \ of \ a \ regular \ hexagonal \ pyramid \ is \ given \ by \n \n V = (√(3))/(2)\cdot s^2\cdot h \n where \ s \ is \ the \ side \ length \ of \ the \ hexagon \n h \ is \ its \ height \n \n V=(√(3))/(2)\cdot 10^2\cdot 30 = √(3)\cdot 100\cdot 15 =1500√(3) \ cm^3$

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the diameter of the earth at the equator is about 8,000 mi. Based on this figure ,how far is it exactly around the earth

Answers

basically, we want to find the circumfernece of the earth
C=pid
d=diameter
pi=pi (aprox pi=3.1419256)
C=3.14159256*8000
C=25132.74048 feet

C = 2 π r
C = 8,000 π or 25,133 miles

What value of x will make this proportion true? a. 7 b. 18 c. 24 d. 28 42 3 4 = 14 x 1 2

Answers

We are given proportion as 14/x = 1/2

So first step is to get rid off 2 from denominator,so we multipy both sides by 2

2(14/x) =2(1/2)

28/x =1

Next step is to get rid off x from denominator ,so we multiply both sides of the equation by x

x(28/x) =x(1)

28x/x =x

28 =x

Hence we get value of x =28

So answer is choice d) 28

Chloe sorts her beads. The number of red beads she has is 5 5/6 times the number of green beads. If she has 60 green beads, how many rec beads dose she have?

Answers

The number of redbeads she has is 350.

What is a fraction?

A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.

Example: 1/2, 1/3 is a fraction.

We have,

Number of green beads = 60

The number of red beads.

= 5(5/6) x 60

= 35/6 x 60

= 35 x 10

= 350

Thus,

The number of redbeads is 350.

Learn more about fractions here:

brainly.com/question/24370499

#SPJ3

60*5=300+50=350 beads(I'm pretty sure this is right.)

Train A arrives at central station on the hour and every 12 minutes. Train B arrives on the hour and every 15 minutes. When do both trains arrive at the same time? A) On the hour and 30 minutes past the hour
B) On the hour and 15 minutes to the hour
C) On the hour and 27 minutes past the hour
D) On the hour

Please explain why you chose the answer and how you achieved it.

Answers

Train A arrives at central station on the hour and every 12 minutes. Train B arrives on the hour and every 15 minutes. When do both trains arrive at thesame time?

I believe that both trains would arrive at the same time on the hour (D).

Hope this helped :)

The answer is D!!!!!

How would you convince a fellow student hat the number 0.57 is a rational number

Answers

Start by proving to them that the number 0.57 can be converted into a fraction . A whole number can't exactly be put in to a fraction. 0.57 can be converted to 14.25/25. This information means that 0.57 IS a rational number. Hope this convinced them!

Define the type of sequence below.
-2, 0, 2, 4, 6,

Answers

Answer:

Arithmetic sequence.

Step-by-step explanation:

We have been given a sequence : -2, 0, 2, 4, 6. We are asked to define the type of our given sequence.

We can see from our given sequence that each next term is 2 more than the previous term of the sequence.

$0--2=0+2=2$

$2-0=2$

$6-4=2$

Since the difference between the consecutive terms is constant and each next term is produced by adding 2 to preceding term, therefore, our given sequence is an arithmetic sequence.

This is an arethmetic sequence

For each new value in the sequence, 2 is being added to the previous term.

-E :)

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