MATHEMATICS MIDDLE SCHOOL

Look at the rectangular prism and its net.What is the surface area of this rectangular prism?



A.
24 cm2

B.
72 cm2

C.
96 cm2

D.
192 cm2
Look at the rectangular prism and its net. What is - 1

Answers

Answer 1
Answer: The equation to find the surface area of a prism is:
h * P + 2 * b
H = Height
P = Perimeter
B = Area of Base

To find the perimeter you have to do this equation:
2l + 2w 
L = length
W = width

2 * 12 + 2 * 4 = 32
P = 32

Then finding the area of base using this equation:
L * W

12 * 4 = 48
B = 48

Now, put it all together
H = 3
P = 32
B = 48

3 * 32 + 2 * 48 = 192 cm^2
Hope this helps!
Answer 2
Answer: The formula is SA=Ph+2B
First find the perimeter. The formula for that is P=2L+2w
The perimeter is 32.

SA=32*3+2*12              (I think its 12 for base)
SA=96+24
SA= 120 cm2

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Compare 3.21 and 0.2

Answers

3.21 is greater than 0.2 
3.21 is greater than 0.2.

3.21 > 0.2

Which is greater 2/3 or 1/3

Answers

Lets say you have a pizza which is cut into 3 pieces. Now if you get 2 slices and your friend gets 1 slice. Since you got more it means that you got bigger portion than you friend.
because they are both 3 on the bottom so you should see if 2 is bigger than 1 or not, and the answer is yes! 
so 2/3 is greater than 1/3 :)))
I hope this is helpful
have a nice day

Cell phone plan A cost $70 per month and comes with a free $500 phone. cell phone plan B costs $50 per month but does not come with the phone. If you buy the $500 phone and choose plan B, how many months is it until your cost is the same as plan A?

Answers

Answer: near 11 months

Step-by-step explanation:

sorry I just in 7th grade

Which of the following are polynomial functions? Check all that apply.A. F(x) = 3x-^3 - 19
B. F(x) = 2x^2 + 5x - 3
C. F(x) = -x^3 + 5x2 + 7x - 1
D. F(x) = -x^3 + sq -x
E. F(x) = 3/5x^4 - 18x^3 + x^2 - 10x + 3.5

Answers

The function F(x) = 2x² + 5x – 3, F(x) = -x³ + 5x² + 7x – 1, and F(x) = 3/5x⁴ – 18x³ + x² – 10x + 3.5 are polynomial function. Then the correct options are B, C, and E.

What is polynomial?

A polynomial expression is an algebraic expression with variables and coefficients. Unknown variables are what they're termed. We can use addition, subtraction, and other mathematical operations. However, a variable is not divisible.

The polynomial is given below.

\rm f(x) = a_0x^n + a_1 x^(n - 1)+ ....+ a_(n-2)x^2 + a_(n-1)x + a_nx^0

If the exponent of the variable is negative and fraction, then the function is not a polynomial function.

A. F(x) = 3x⁻³ – 19, the exponent of the function is negative 3. Then the function is not a polynomial function.

B. F(x) = 2x² + 5x – 3, the exponent of the function is whole number. Then the function is a polynomial function.

C. F(x) = -x³ + 5x² + 7x – 1, the exponent of the function is whole number. Then the function is a polynomial function.

D. F(x) = -x³ + √(-x), the exponent of the function is 1/2. Then the function is not a polynomial function.

E. F(x) = 3/5x⁴ – 18x³ + x² – 10x + 3.5, the exponent of the function is whole number. Then the function is a polynomial function.

Then the correct options are B, C, and E.

More about the polynomial link is given below.

brainly.com/question/17822016

#SPJ5

Answer: B, C, E

Step-by-step explanation:

What is 7/6 reduced to

Answers

7/6 is 1 and 1/6 (1 1/6) as a reduced fraction. 7/6 is an improper fraction. So, how many times does 6 go into 7, it goes into it one time and there is one remainder.

Answer:

1 1/6

Step-by-step explanation:

7/6 is an improper fraction, so to reduce it, you know that 6/6+1/6=7/6. 6/6=1, and 1/6 is still just 1/6. When you put the two together, you get 1 1/6

A train has an average speed of 18 miles per hour. How long will it take to travel 270 miles?

Answers

It will take 15 hours. Because the train has a speed of 18 mph, you just have to divide 270 by 18 which makes 15. The train goes 18 mph, so it is 15 hours.

Step-by-step explanation:

1.) First, you need to find how many miles per hour (18), and how many miles (270)

2.) Next, you will need to divide 270 by 18, or 270/18.

3.) This will show you how many 18's you can get out of 270, or how many hours it will take to go 270 miles.

4.) After dividing, you will get 15.

Therefore, it will take you 15 hours to get from point A to point B.

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