Mathematics College

find the perimeter of a rectangle if: L= 12cm, W= 5cm.
(a) 34cm
(b) 21cm
(c) 14cm
(d) 17cm​

Answers

Answer 1

Answer:

(a) 34 cm

Step-by-step explanation:

The formula for perimeter of a rectangle is

P = 2l + 2w, where

P is the perimeter,l is the length,and w is the width.

Thus, we can plug in 12 for l and 5 for w in the perimeter formula and simplify to find the perimeter of the rectangle:

P = 2(12) + 2(5)

P = 24 + 10

P = 34

Thus, the perimeter of a rectangle with a length of 12 cm and a width of 5 cm is 34 cm.

Related Questions

let x = -11/8 and y = -11/4 Which expression has a negative value? A. x + y B. x - y C. x . y D. x/y

Answers

The correct answer is A

-11/8 + (-11/4)
= -11/8 - 11/4
= -11/8 - 22/8
= -33/8

Find the circumstances of a circle of the radius 15 CM

Answers

94.2 cm (pi rounded to 3.14)15 x 2 = 3030 x 3.14 = 94.2

Put the following rational numbers in order from least to greatest.

-8.2, 0.4, -2.5, 2.4

Answers

Answer:

-8.2,-2.5,.4,2.4

Step-by-step explanation:

start by negatives. negatives are lesser the higher they are. so -8.2 is less than -2.5. then positives are greater than negatives. .4 is less than 2.4. hope this helps

1) Rewrite the expression as the difference of two squares.
(X+y)(x-y)-6x+9

A) (x + 3)2 + y2
B) (x + 3)2 - y2
c)(x – 3)2 + y2
D) (x – 3)2 - y2

Answers

Answer:

c

Step-by-step explanation:

Is the answer

A significance test is conducted for which the alternative hypothesis states that more than 85 percent of adult sea turtles on a certain beach are female. The p-value for the test is 0.4158. If the null hypothesis is true, which of the following statements is a correct interpretation of the p-value?

a. Of all possible samples of the same size, 41.58 percent will result in 85 percent of adult sea turtles on the beach being female.
b. Of all possible samples of the same size, 41.58 percent will result in 85 percent or more of adult sea turtles on the beach being female.
c. Of all possible samples of the same size, 41.58 percent will result in 85 percent or less of adult sea turtles on the beach being female.
d. Of all possible samples of the same size, 20.79 percent will result in 85 percent or more of adult sea turtles on the beach being female.
e. Of all possible samples of the same size, 20.79 percent will result in 85 percent of adult sea turtles on the beach being female.

Answers

Answer:

d. Of all possible samples of the same size, 20.79 percent will result in 85 percent of adult sea turtles on the beach being females.

Step-by-step explanation:

Hypothesis testing is conducted to test an observation against the null hypothesis. P-value is calculated to determine whether to accept or reject the null hypothesis. In the given case the p-value is 0.4158 which means null hypothesis is true.

Please help with this slope problem!!

Answers

The answer would be point-slope= y+4=-4(x+2) and slope-intercept= y=-4x-12

Hope this helps

Have a great day/night
Feel free to ask any questions

chase travel 192 miles in 16 hours on his inline skates .What is his unit rate in milees per hour

Answers
a 1 mph
b 0.083
c 12 mph
d 24 mph

Answers

Answer: C. 12mph
Explanation

-2(4x – 3) = 10
Can someone help me with this math problem please

Answers

Answer:

-1/2

Step-by-step explanation:

-2(4x - 3) = 10

First distribute the -2 to 4x and -3; it turns into

-8x + 6 = 10

The subtract 6 on both sides which equals

-8x = 4

Then divide -8 on both sides...

x = -4/8 or -1/2

please answer the above question​

Answers

70
Since 35 is an angle at the circumference

how much is 1000 subtract 4​

Answers

Answer:

your answer is 996

1000 - 4 = 996

16d + 20c + 5d -7 - 8c - 7d + 3 Evaluate the expression if: d= -3 and c= 4

Answers

Answer:

2

Step-by-step explanation:

d.

16x-3= -48

5x-3= -15

-7x-3= 21

=-42

c.

20x4= 80

-8x4= -32

= 48

-7+3= -4

7. Mrs. Dyson asked her students to draw a figure with a perimeter of 4x+4.
Shown below are 4 drawings made by her students. (They are not drawn to
scale.) Which one is NOT correct? *

Answers

Answer:

the answer is b

Step-by-step explanation:

–5(–2) also i checked and apparently its not -7

Answers

Answer:

Im pretty sure you need to multiply answer is 10

Step-by-step explanation:

because the -5and -2 are right next to each other and if -7 doesn't work thats the next best thing.

2?////////////////////////////////////////////////

Answers

Answer:

2...........???

Step-by-step explanation:

for an art project ,Mrs.Williams is dividing construction paper into fourths. how many Fourths can she make from 5 pieces of construction paper?


if you answer you'll be a Brainliest

Answers

Answer:

20

Step-by-step explanation:

5 times 4 = 20

find the formula for the nth term in the given sequence 12,36,108,324,972​

Answers

Answer:

[tex]\huge\boxed{a_n=12\cdot3^{n-1}=4\cdot3^n}[/tex]

Step-by-step explanation:

[tex]a_1=12\\\\a_2=36=3\cdot12=3a_1\\\\a_3=108=3\cdot36=3a_2=3\cdot3a_1=3^2a_1\\\\a_4=324=3\cdot108=3a_3=3\cdot3^2a_1=3^3a_1\\\\a_5=972=3\cdot342=3a_4=3\cdot3^3a_1=3^4a_1\\\vdots\\a_n=3^{n-1}a_1=3^{n-1}\cdot12\\\\3^{n-1}\cdot12=3^{n-1}\cdot3\cdot4=3^{n-1+1}\cdot4=4\cdot3^n[/tex]

[tex]\text{Used}\\\\a^n\cdot a^m=a^{n+m}[/tex]

The rectangle can be made into a hollow cylinder with height 40cm and radius 1.910cm.
a) calculate the volume of this cylinder.

Answers

Answer:

41.91 is your answer right answer


The whole bar weighs 60 grams. How much does 1/4
of the bar weigh?

Answers

Answer:

15 grams

Step-by-step explanation:

Answer:

1/4 of the bar is 15 grams

The graph of the function f is shown. f(3) =

Answers

Answer: f(3) is 5.

Step-by-step explanation:

The value of the function f(3) is 5 from the given graph.

What is a function?

A relation is a function if it has only One y-value for each x-value.

We have to find the value of f(3) from the given graph.

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

The value of f(3) is 5.

To find this we have to draw a perpendicular line at x=3.

Now let us check the corresponding point of y where the point and perpendicular line intersect.

Hence, the value of the function f(3) is 5 from the given graph.

To learn more on Functions click:

https://brainly.com/question/21145944

#SPJ2

Question 3
Circle A has area of 500 in^2. The diameter of Circle B is three times the diameter of circle A. Estimate the area of circle B.

Answers

Answer:

750^2

Step-by-step explanation:

backtrack and find the diameter of circle A. A=πr, which means the diamater is about 159 1/11. three times the diameter will give 477 3/11, so the radius is 238 7/11. multiply it to 22/7 (π) then you get 750^2.

PLZ, HELP WILL GIVE 20 MORE POINTS FOR FREE!!!!!!

Answers

Answer:

16x+12

Step-by-step explanation:

4 sides

2*(5x-2 )

10x-4

2(3x+8)

6x+16

10x-4+6x+16=16x+12

Answer:

3+8=x

Step-by-step explanation:

then 5-2=x  multiply and you get 15+16

3/2+b=7/4 need help now

Answers

[tex]Answer:\\\\frac{3}{2} + b = \frac{7}{4}\\\\b = \frac{7}{4} - \frac{3}{2}\\\\b = \frac{7}{4} - \frac{6}{4} \\\\b = \frac{7-6}{4}\\\\b = \frac{1}{4}\\\\Hope \ it \ helps![/tex]

At a garage sale, a large bin full of DVDs and CDs are being sold. All the DVDs are the same price, and all the CDs are the same price.

Aleah buys 2 DVDs for $6 and 4 CDs for $8. Her friend, Ling, wants to buy 4 DVDs and 2 CDs. How much will Ling have to pay?

Aleah's brother, Pierre, wants to spend $20 on DVDs and CDs. What combination of DVDs and CDs could he buy?

Answers

Answer:

Step-by-step explanation:

$6/(2 DVDs) = $3/DVD, and $8/(4 CDs) = $2/CD

a DVD costs $3

a CD costs $2

Ling bought 4 DVDs and 2 CDs for 4×$3 + 2×$2 = $16.

Pierre bought d DVDs and c CDs for $20.

d is 0, 2, 4, or 6

c = (20-3d)/2

(d,c) = (0,10), (2,7), (4,4), or (6,1)

find the value of x

Answers

Answer:

X=65.4 Degrees

Step-by-step explanation:

Hehe ;)

What is 4w^2? Plz answer!!!

Answers

16 ? I would just multiply 4x4

A class of 37 students took a test worth 100 points. The five-number summary of their scores is 55, 67, 73, 81, 98. Identify the FALSE statement: Group of answer choices At least 25% of the students scored a 67 or below. At least 18 students scored below a 67. At least 9 students scored between 67 and 73. At least 25% of the students scored an 81 or above.

Answers

Answer:

At least 18 students scored below a 67.

Step-by-step explanation:

Given the 5 number summary of scores obtained by 37 students in a test worth 100 points :

55, 67, 73, 81, 98

Minimum = 55

Q1 = 67

Q2 = 73

Q3 = 81

Maximum = 98

Q1 = first quartile = 25%

Atleast 25 % scored below 67 (True)

25% of 37 students = 0.25 * 37 = 9.25

Atleast 9 students scored below 67 (True)

Median, Q2 = 50%

Score between Q2 and Q1 = 50% - 25% = 25% ;

Hence, atleast 25 students scored between 73 and 67 ; meaning (0.25 *37) = 9.25 students Hence. Atleast, 9 students scored between 73 and 67 (True)

Third quartile = 75%

Percentage above third quarterile = (100 - 75)% = 25%

Hence, atleast 25% scored above 81 (True)

The false statement is At least 18 students scored below a 67.

Which one is true pls answer

Answers

Answer:

C. All rectangles are quadrilaterals.

Step-by-step explanation:

Quadrilaterals are shapes that have 4 sides, so all rectangles are quadrilaterals, along with squares, rhombus' and other 4 sided shapes.

If the area of the rectangle is 35 units squared, where could point “B” be placed?

Answers

Answer:

(2,0) or (2, -4)

Step-by-step explanation:

Hope that helps!

PLEASE HELP WITH THIS I WILL MARK YOU AS BRAINLIEST PLS AND TY​

Answers

Answer:

it would be multiplying by 2 Soo 2•2= 4

and 4•2= 8. and 6•2 = 12. and 8•2=16 and 10•2=20

equation:
y=2x (y is # of valentines, x is # of pieces of paper)
then for the table u plug in so
2: y = 2x2 = 4
4: 8
6: 12
8: 16
10:20
for the graph it’s in the picture i put

Please I need helppppp

Answers

Answer:

Both correct choices are C, so you are right.

Step-by-step explanation:

All points listed fit on the line y = 0.3x, so the data is perfectly linear.

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