MATHEMATICS MIDDLE SCHOOL

pls help...1.The given right rectangular prism is composed of small cubes. Find the following is the volume of the prism and the volume of one of the small cubes.

Answers

Answer 1

Answer:

The volume ofthe rectangular prism is: 1.39 ft³

The volume ofone of the small cubes is: 0.0046 ft³

What is the Volume of a Rectangular Prism?

Volume of rectangular prism = length × width × height

Given the following:

Length = 1 ft

Width = 5/6 ft

Height = 1⅔ ft

Volume of the rectangular prism = 1 × 5/6 × 1⅔ = 1 × 5/6 × 5/3

Volume of the rectangular prism = 25/18 = 1 7/18 ft = 1.39 ft³

Length of the edge of 1 cube = 1/6 ft

Volume of the 1 cube = (1/6)³ = 1/216 = 0.0046 ft³

Learn more about volume of rectangular prism on:

brainly.com/question/12917973

Answer 2

Answer:

Answer:

1. 1.3778 2. 0.0089

Step-by-step explanation:

to find the volume of the whole rectangle prism you would have to do the volume formula since it is a 3d shape. VOLUME FORMULA, LxWxH.

so 1x0.83x1.66= 1.3778

you can always convert the fraction into decimal to help you calculate the problem.

i don't know if this is correct but i give it a try, so if the whole volume of the triangle is 1.3378 than you can divide that by the the number of small cubes it has inside.

it is 5 by 10 so there are 150 cubes in total.

1.3378 divided by 150=0.0089

im confident about the 1st but not so much with the second

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What is the percent of increase for a population that changed from 438,000 to 561,000?

Answers

To get the answer we can use proportion. We know that 438000 its 100% and we want to know how much its 561000.
438000 ------------ 100%
561000 ------------ x
Crossmultiply now
438000*x=561000*100%
438000x=56100000 /:438000 (divide both sides by 438000)
x=128%
Finally we have to subtract 128%-100%=28% to get percent of increase.
The answer is 28%.

find out how much 561000 goes over 438000, which would be 123000. then you divide to find out the ratio or percentage of the increase from 438000 would be. 123000/438000=.2808219178 so .28 so 28%.

Which question can best be answered by finding the surface area of a figure? A.How much water is needed to fill a pool?
B.How much paint is needed to paint a cube?
C.How far will a car drive around an oval race track?
D.How much concrete is needed to make a decorative tile for a garden?

Answers

surface area is like how much wrappin paper to wrap a present

anything to do with how much it can carry o it's volume aka capacity is not surface area

A is wrong, that's distance
B is correct
C, oval is not surface area, only distance
D is volume, how much concree

answe ri B

I believe its B.
because it can't be A. because its talking about volume
it cant be C. because that's perimeter
and it can't be D. because that is also volume.

19. Two of the most dangerous animals in the enchanted forest are snakes and bears. The populationof bears began with 100 bears in the year 2000 and increases at a rate of 4 bears per year. The
population of snakes began at 1 snake in the year 2000 and doubles every year *

What type of function would best describe the bear population

Answers

Answer:

y=4x+100

Step-by-step explanation:

Find y when x=15 if y=6 when x=30

Answers

y=kx
6=k (30)
6/30=k(30)/30
.2=k
y=.2(15)
y=3
So y is 3.

Y = 12 because you multiply x by two to get x2, which is 30, and multiply y by two to get 12 - this is wrong, the answer is three, i did the math backwards

What is the equation for finding the circumference?

Answers

it is C=2 pi R

hope this helps

Answer:

$c=2\pi r\n$

Step-by-step explanation:

So circumference equals 2 times pi times radius

Simplify (8j^3 - 3j^2 + 5)-(4j^3+8j^2+7j-6)

Answers

Answer:

4j^3 + 5j^2 + 7j - 1

Step-by-step explanation:

(8j^3 - 3j^2 + 5)-(4j^3+8j^2+7j-6)

Distribute the -1 in front of the (4j^3+8j^2+7j-6)

8j^3 - 3j^2 + 5 - 4j^3 + 8j^2 + 7j - 6

We can combine anything with the same exponent number that "j" is raised to

8j^3 - 4j^3 = 4j^3

-3j^2 + 8j^2 = 5j^2

7j is just 7j since there is nothing else with just j in it

5 - 6 = -1

Add these together

4j^3 + 5j^2 + 7j - 1 is our final answer