A ballroom has a square dance floor. The area of the floor is 400 square feet.

If the length of each side of the square increased by one foot, would its area be a rational number?
Choose all that apply.
Answers:

A. - The area of the floor would be a rational number.


B. - The area of the floor would be an irrational number.


C. - Each side length would be a perfect square.


D. - The area of the floor would be a perfect square.


E. - The area of the floor would be a nonterminating, nonrepeating decimal.

Answers

Answer 1
it would be D? right or no
Answer 2

Answer:

D

Step-by-step explanation:

Area of square=400sq.ft

or,l²=400sq.ft

or,l=(400sq.ft)½

or,l=(20²sq.ft)½

or,l=20ft

Thus,length of square is 20ft.

If length of square is increased by 1 ft then ,

New length=(20+1)ft=21ft

Area of square=(21ft)²

=441sq.ft


Related Questions

What do you know about Scientific Notation

Answers

Answer:

Scientific notation is a way of expressing, and handling, a mathematical expression used to represent a decimal number between 1 and 10 (multiplied by ten), so large numbers can be made with using less digits. An example would be writing 4 x 10³ for 4,000.

Step-by-step explanation:

A bag contains 5 red marbles 7 yellow marbles and 3 blue marbles what is the probability of not drawing one blue marble at random from the bag?

Answers

Answer
It’s 0.8 or 80%

TÜRKLER KALDIRIRN ELLERİ

Answers

Answer:

No, i cant

Step-by-step explanation:

May someone please help me with this question.
5x+5x=

Answers

Answer:

10x

Step-by-step explanation:

Answer:

10x

Step-by-step explanation:

5x+5x is just like 5+5. So your answer is 10x.

Is 2 pounds of meat will serve 5 people, how many pounds will be needed to serve 13 people?

Answers

Answer:

6 pounds

Step-by-step explanation:

Answer:

beat your meat??? also you are bad!!!!

Step-by-step explanation:

a pile of sand has a weight of 90 kg the sand is put into a small bag a medium bag and a large bag in the ratio 2:3:7
work out the wight of sand in each bag

Answers

Answer:

15 kg, 22.5 kg, 52.5 kg

Step-by-step explanation:

Let the common multiplier of the given ratios be x. Therefore, weights of each bag would be 2x, 3x and 7x

According to the given information:

[tex]2x + 3x + 7x = 90 \\ 12x = 90 \\ x = \frac{90}{12} \\ x = 7.5 \: \\ \implies \\ 2x = 2 \times 7.5 = 15 \: kg \\ 3x = 3 \times 7.5 = 22.5 \: kg \\ 7x = 7 \times 7.5 = 52.5 \: kg[/tex]

Hence the weight of sand in bag would be 15 kg, 22.5 kg and 52.5 kg

Help me
The digit 1 in witch number represents a value of 1 tenth?
A.2.916
B.718
C.5108

Answers

C.5108, that’s what represents the value of 1tenth

Draw Conclusions Suppose that A and C are real numbers and A is not 0. What are the x- and y-intercepts of the equation Ay = C? Explain.

Answers

Answer:

Horizontal line which goes through the y -axis at the coordinate ( 0, C/A ).

Step-by-step explanation:

Since A is not 0 then C can not be 0 This is a logical deduction from the given formula Ay = C

The equation of any line is y = ax + b, where a is the incline and b is the intercept between the line and the y- axis.

Ay = C

Divide left and right of the = sign by A and you get:

y = C/A

This is the formula for a horizontal line which goes through the y -axis at the coordinate ( 0, C/A ).

Because it is a horizontal line it has an incline of 0.

So a = 0

y = ax + b

a = 0 and b = C/A

y = 0*x + C/A

y = 0 + C/A

y = C/A

2) What is the relationship between the coefficient of f(x)=a/x/ and its effects on the graph?

Answers

Greetings from Brasil...

The coefficient a in a linear function (or even a modular function) implies the slope of the function line. The higher the value of a, the greater the slope of the line. the lower the value of a, the lower the slope of the line

Covert this repeating decimal into a fraction:

3.00121212121212...

Answers

I think the answer is 2476/825

Solve 7ax + 8ax = 9 ax + 6 for x. Assume a ≠0.
A. = x=1/6a
B. x=1/a
C. x= a
D. x = 6a

Answers

The answer is B (1/a)

0.76 − 0.32 − 0.15 = math

Answers

subtracting all i think should equal 0.29

Answer:

0.29

Step-by-step explanation:

0.76 - 0.32 - 0.15

= 0.76 - 0.47

= 0.29

Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator
24 min to 64 min

Answers

Answer: 3/8

Step-by-step explanation:

24 min to 64 min as a fraction is [tex]\frac{24}{64}[/tex]    

Now write the fraction is simplest form  by dividing it by their greatest factor.

The GCF of 24 and 64 is 8  

24/8 = 3

64 /8 = 8    

So the ratio will be 3/8

solve x-5/y = z for y​

Answers

Answer:

y=5x−z

Step-by-step explanation:

Step 1: Multiply both sides by y.

xy−5=yz

Step 2: Add -yz to both sides.

xy−5+−yz=yz+−yz

xy−yz−5=0

Step 3: Add 5 to both sides.

xy−yz−5+5=0+5

xy−yz=5

Step 4: Factor out variable y.

y(x−z)=5

Step 5: Divide both sides by x-z.

y(x−z)x−z=5x−z

y=5x−z

is 0.65 repeating greater than or less than 13/20?

Answers

Answer:

its equal

Step-by-step explanation:

Answer:

Since 13/20 is exactly 0.65, then 0.6565656565......(repeating) is greater than 13/20.

What is the distance between M(9, −5) and N(−11, 10)?

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{25 \: units}}}}}[/tex]

Step-by-step explanation:

Let M ( 9 , -5 ) be ( x₁ , y₁ ) and N ( - 11 , 10 ) be ( x₂ , y₂ )

Finding the distance between these points

[tex] \boxed{ \sf{distance = \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2} } }}[/tex]

[tex] \longrightarrow{ \sf{ \sqrt{ {( - 11 - 9)}^{2} + {(10 - ( - 5))}^{2} } }}[/tex]

[tex] \longrightarrow{ \sf{ \sqrt{ {( - 20)}^{2} + {(10 + 5)}^{2} } }}[/tex]

[tex] \longrightarrow{ \sf{ \sqrt{ {( - 20)}^{2} + {(15)}^{2} } }}[/tex]

[tex] \longrightarrow{ \sf{ \sqrt{400 + 225}}} [/tex]

[tex] \longrightarrow{ \sf{ \sqrt{625}}} [/tex]

[tex] \longrightarrow{ \sf{ \sqrt{ {(25)}^{2} } }}[/tex]

[tex] \longrightarrow{ \sf{25 \: units}}[/tex]

Hope I helped!

Best regards! :D

write 3/19 in lowest terms​

Answers

Answer: do you mean simplified because if so that is the lowest it will go but in percentage form it is 15.79%

Step-by-step explanation:

If 42-8, then 400x2=

Answers

Answer:

800

Step-by-step explanation:

Use the equation below to find y, if m=9, x=5, and b=6.
y=mx+ b
y = 1
X
?

Answers

Y should be 51. If you fill in the variables you get y=(9x5)+6, and once you solve you get y=51
The answer is correct

Help ASAP!!! Which one?
1. 16 square units
2. 64 square units
3. 48 square units
4. 32 square units

Answers

Answer:

64

Step-by-step explanation:

16+16 on the 2 big sides

then 8x4=32

32+32

64 is ur answer

during a promotion bags of sweets contain 30% extra free. There are 65 sweets in a bag during the promotion. How many sweets are there normally

Answers

Answer:

if y is the normal number of sweets then the normal number plus 40 percentage equals 42

y+4y=42

1.4y=42

y=42/1.4=30

hope this helps!

please mark me as the brainiest answer and please follow me for more answers.

The green turtle, Monique, traveled 250 centimeters in 8.7 minutes.

Answers

I don’t even that is not even a question

8. William got scores of q1, q2, q,3 on three quizzes.

a. Write the formula for the average x of all three quizzes

Answers

Answer:

A# A+q1+q2+q3/3

B# He must score 97 in his third quiz  

totally not late :D

Step-by-step explanation:

What is the answer two 10 x 3/4 x pi x 0 x i x 2

Answers

Answer:

0 or 2i

Step-by-step explanation:

I said zero because it is time zero but the times zero is before the x i x 2 so it could possibly be 2i.

Answer:

The answer is zero

Step-by-step explanation:

PLEASE HELP ME ASAP !!!!!!!!!!!!!!!11

Answers

Answer:

In step 2 the difference of 1.5 x 3.2 and 1.5 x 2.5 should be written as a sum

Step-by-step explanation:

(1.5 x -3.2) - (1.5 x 2.5)

-4.8-3.75

-8.55

Idk if I an correct but I tried hope this helps though

On an actual basketball court, the bench area is 9 meters long. How long should the bench be on the scale drawing?

Answers

Step-by-step explanation:

Note: It is not given that, 1 cm represents 2m

The bench area on an actual basketball court is 9 meters long.

We need to find how long should the bench be on the scale drawing. Since 1 cm represents 2m. It means 1 m represents 0.5 cm

9 meters will represent,

[tex]\dfrac{9}{0.5}\ cm\\\\=18\ cm[/tex]

Hence, the bench is 18 cm long.

8c = 56
two step equation​

Answers

Answer: c=7

Step-by-step explanation:

8c = 56  Divide both sides by 8

[tex]\frac{8}{8}c = \frac{56}{8}[/tex]  

c = 7

PLEASE HELP ME!!!!!!!!!!!
Given R 7, -1, A3,-6, B-3,-6, E(-5, 4), plot the points and trace the figure.














Part A: Determine the lengths of each side (round to the nearest hundredth).







Part B: Determine the perimeter

Answers

Answer:

See below

Step-by-step explanation:

Note: See https://brainly.com/question/17697603 for the plotting part

Points given

R (7, -1), A(3,-6), B(-3,-6), E(-5, 4)Part A

Distance formula:

d= √(y2-y1)²+ (x2-x1)²

Side lengths:

AB= 3- (-3) = 6 unitsAR = √(7 -3)² + (-1+6)²= √4²+5²= √41= 6.40 unitsER = √(7+5)²+(-1-4)²= √12²+5²= √169= 13 unitsBE = √(-3+5)²+(-6-4)² = √8²+10²= √164 = 12.80 unitsPart B

Perimeter is the sum of length of the sides

P = 6 + 6.4 + 13 + 12.8 = 38.2 units

X - 6 - 8 = -19 + x

Answer: infinite solutions, one solution, zero, no solution

Answers

Answer:

No solution.

Step-by-step explanation:

[tex]x-6-8=-19+x[/tex]

Subtract x from both sides:

[tex]x-6-8-x=-19+x-x[/tex]

[tex]-6-8=-19[/tex]

[tex]-14=-19[/tex]

Since both sides are not equal, there is no solution.

66.7 - 6 x 14 + 99 x -6 = ?

Answers

Answer:

? = -611.3

I used a calculator.

hope this helps

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