35/4 square meters by 7/2 meters

Answers

Answer 1
Answer: Area = 35/4  m²

Length = 7/2 m

Area =  length * width

35/4 =  7/2 * width

7/2 * width = 35/4

width = 35/4 ÷ 7/2

width = 35/4  × 2/7 = 5/2

Width = 5/2 m

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The following 3-D object is composed of identical cubes. The volume of the 3-D object is 56cm cubed. The surface area of the 3-D object is a) 30cm squaredb) 60cm squaredc) 120cm squaredd) 144cm squared

Pls help I’ll give brainliest

Answers

Answer:

Scenario A:

The Boxer is above her starting weight.

Lets say she started out at the weight of 100. If she gained six pounds, she would then be at 106 pounds. Then she loses 2 pounds. Now she is at 104 pounds. She has still gained a total of 4 pounds. *gained* meaning she is above her starting weight.

Scenario B:

The roller coaster is below it's initial height.

Lets say that the initial height is 30 feet to start. Then it goes down 20 feet. That means that it is now at 10 feet. Finally, the roller coaster goes back up 15 feet, that means that it is now at 25 feet. 25 < 30. So the roller coaster is below it's initial height.

Scenario C:

The overall change in the company's size is zero employees.

Lets say that the company starts out with 400 employees. Then they lose 20 employees. Now they have 380 employees. However, they gained 20 new employees! They are back to 400 employees. 400=400. So the overall change in the company's size is zero employees.

How many different signals can be made by displaying five flags all at one time on a flagpole? The flags differ only in color: two are red, two are white, and ine is blue. BTW this is a permutation problem.

Answers

Answer:

30 different signals

(n = no. of objects)

(r = no. of objects selected)

Step-by-step explanation:

this is a permutation problem so use the formula:

5P5 / 2! 2! 1! <- its 5 P 5 because there are 5 flags, 2 red, 2 white, and 1 blue

[5! / (5 - 5)!] / 2 x 2 x 1 <- the permutation formula is: n! / (n - r)!

= 120 / 4

= 30

(i know this was like 6 years ago but just in case someone needs the correct answer)

The vitamin C tablets in a bottle have amass of 250 g. Each tablet has a mass of 500 mg. How many tablets are in the bottle. show your work or explain

Answers

1 milligram = 1/1000 gram

Therefore:

500 milligrams = 500/1000 gram = 1/2 gram

500 half grams fit into 250g, as 500 * 1/2 gram = 250 grams.

Therefore, there are 500 vitamin C tablets in the bottle.

Simplify (3r^2+4) (2r-1).-8r^3+6r^2

Answers

first simpliify
(3r^2+4)(2r-1)=
(3r^2+4)(2r)+(3r^2+4)(-1)=
(6r^3+8r)+(-3r^2-4)=
6r^3+8r-3r^2-4=
put back

6r^3-3r^2+8r-4-8r^3+6r^2=
-2r^3+3r^2+8r-4



Amanda, Bryan, and Colin are in a book club. Amanda reads twice as many books as Bryan per month and Colin reads 4 fewer than 3 times as many books as Bryan in a month. In 4 months the number of books Amanda reads is equal to 5/8 the sum of the number of books Bryan and Colin read in 4 months. How many books does each person read each month?

Answers

A=2bC=3b-4. A=5/8x4 = b+cx4If Brian read let's say 3 books a month then amanda reads 6 and Collin reads 5So the answer would be B= Brian's books. A= Amanda's books and c= Collins booksSo a=2xbB=bC=(3b)-4

57% of 109 is what number? plz help

Answers

I believe the answer is 62.13.
57% of 109
57÷100=0.57
0.57×109
=62.13
=$62.13
or 
you can do 57/100×109 and you will get 62.13