MATHEMATICS HIGH SCHOOL

Which polynomial represents the area of the rectangle?a. 3x2+2x−5
b. 3x2−5
c. 3x2−2x−5
d. 3x2−8x−5

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

The correct option is C.

Step-by-step explanation:

The width of the rectangular pen is

The length of the rectangular pen is

The perimeter of a rectangle is

Therefore the correct option is C.
Answer 2
Answer:

Final answer:

Without specific dimensions for the rectangle, it's impossible to definitively determine which polynomial represents its area. If we knew the length and width in terms of x, we could then form a polynomial by multiplying them.

Explanation:

This question is based on the concept of polynomials and their application in representing areas. From the provided question, we don't have specific dimensions of the rectangle, thus making it impossible to definitively determine which polynomial represents its area.

If the length and width of the rectangle were expressed in terms of x (e.g., 3x and x, or some other terms x and 2x-5), then we could put these expressions in the form of a polynomial by multiplying them together. For example, if we suppose our rectangle has sides of 3x and x, then the area would be represented by the polynomial 3x2, which equals to 3x*x.

However, without specific rectangular dimensions, we can't accurately choose between the provided options: 3x2+2x−5, 3x2−5, 3x2−2x−5, and 3x2−8x−5.

Learn more about Polynomials in Area Calculation here:

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Answers

Answer:

  100π square inches

Step-by-step explanation:

The area of a circle is given by ...

  A = πr^2

where r is the radius. The radius of a circle is half the diameter, so your circle with 20 inch diameter has a radius of 10 inches. Putting that value into the formula gives an area of ...

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Cone A has a height of 3 meters and a radius of 2 meters. Cone B has the same radius, but the height is 6 meters. Calculate the volume of each cone. Which conclusion is correct?A) The volume of cone A is twice the volume of cone B.
Eliminate
B) The volume of cone B is twice the volume of cone A.
C) The volume of cone B is 4 times the volume of cone A.
D) The volume of cone B is three times the volume of cone A.

Answers

V=(1/3)hpir^2

Avol is (1/3)3pi2^2=4pi m^3

Bvol is (1/3)6pi2^2=2pi4=8pi m^3

B is twice vol A

answer is B

Answer:

B

Step-by-step explanation:

Select all that apply.Which of the following expressions could you use to estimate 47% of 89?


1/2 · 90
0.5 · 90
0.47 · 89
90/2

Answers

Given: 
47% of 89

Exact solution is : 0.47 * 89 = 41.83

Estimates: you round the number to the nearest tens.
47% can be 50% ; 89 can be 90

0.50 * 90 = 45

50% is the same as 1/2
1/2 * 90 = 45

90/2 is also applicable to estimate for the above figure. 90/2 = 45

Answer:

The first and second one

Step-by-step explanation:

You must reverse the inequality sign when solving this inequality: x + 7 < 4True or false?

Answers

True because to solve the problem you can do 4-7 and that is -3 and when there is a negative you must switch the inequality sign

Answer: False.

Step-by-step explanation:

x + 7 < 4

x+7-7<4-7

x <-3

Hope this helps!

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A rectangular prism with a length of 22 meters a width of 18 meters and a height of 10 meters A) 3247 sq.m
B) 2563 sq.m
C)1592 sq.m
D) 1789 sq.m

Answers

Answer:

the answer is 1240

Step-by-step explanation:

1st you have to find the area of each surface and then add all the numbers together

(22x10)+(22x10)+(22x10)+(22x10)+(18x10)+(18x10)

then solve

220+220+220+220+180+180

1240

Help............................

Answers

Answer:

I think it is B, or the second one

Step-by-step explanation:

Answer:

1

Step-by-step explanation:
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