The perimeter of a square is 20 centimeters. Find the length of a diagonal. Sketch the figure. Round decimals to the nearest tenth (1 decimal place).

length of a diagonal =

Answers

Answer 1

The length of the diagonal is 7.05cm of a square.

The perimeter of the square is 20 cm.

The formula of the perimeter of the square is 4a, where a is the length of the side of the square.

So, 4a = 20

       a = 5

Now we have to find the diagonal of the square.

In a square there is two diagonal, each of equal length

Therefore,

    diagonal = [tex]\sqrt{2}[/tex]a

                    = 1.41 × 5

                    7.05cm

Therefore the diagonal of the square is 7.05cm.

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Related Questions

The product of 15 and √2 can be expressed as
15√2. Which of these is a true statement
about the expression 15√2?

Answers

Answer:

The alternative form would be ≈ 21.213203

Step-by-step explanation:


Find the sum of E = [3 4 7] and the additive inverse of G = [-2 0 5].

Answers

Answer:

[ 5 4 2 ]

Step-by-step explanation:

| 7x+35 |=7 has two solutions
What is the distance in the solutions?

Answers

7x= 2 35= x that is the answer on edguinity

[tex]|7x+35|=7 \\7x_{1} + 35 = 7 \\ 7x_{1} = - 28 \\ x_{1} = - 4[/tex]

[tex]|7x+35|=7 \\7x_{2} + 35 = - 7 \\ 7x_{2} = - 42\\ x_{2} = - 6[/tex]

[tex]distance = | x_{1}-x_{2}| = | - 4-( - 6)| \\ distance = | 2| = 2[/tex]


Interest Suppose you deposit $ 2000 in a savings account that pays interest at an annual rate of 4 % . If no money is added or withdrawn from the account, answer the following questions.

a. How much will be in the account after 3 years?

Answers

There will be $ 2249.728 in the account after 3 years .

Simple Interest : Each year interest is calculated on the principal amount ( the amount that was deposited initially ) .

Simple Interest = ( P * R * T ) / 100

P ( principal amount ) = 2000

R ( Rate of Interest ) = 4

T ( No . of years for which amount is deposited ) = 3

Substituting values

Simple Interest = ( 2000 * 4 * 1 ) / 100

                         = 80

Amount in account after 1 yr = 2000 + 80

                               = $ 2080

In second year amount will be = 2080 + [ ( 2080 * 4 * 1 ) / 100 ]

                                            = 2080 + 83.2

                                             = $ 2163.2

After three yrs . amount in account = 2163.2 + [ ( 2163.2 * 4 * 1 ) / 100 ]

                                       = 2163.2 + 86.528

                                         = $ 2249.728

Hence , there will be $ 2249.728 in the account after 3 yrs .

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nfs anyone ig lah.cj2x ??????????????????????????????????

Answers

Answer:

huh?

Step-by-step explanation:

Solving Equations with the Variable on Each Side:
-6 - 9 x = - 9 x - 4​

Answers

Answer:

No solution

Step-by-step explanation:

To isolate the variable, begin by adding 9x to each side

-6 - 9x = -9x - 4

-6 - 9x (+ 9x) = -9x (+ 9x) - 4

-6 ≠ -4

The equation in your answer has no solution. If you are supposed to find the value of x, you might want to double check for typos.

solve for y
7y+16=3y

Answers

Answer:7y7=3y-16

Step-by-step explanation:

Solve  for

Subtract  from both sides

Answer: -4

Step-by-step explanation: Tell me if it's correct. :)


Determine whether each logarithm is a common logarithm.
C. (log₁₀100)

Answers

Yes , the given logarithm is a common logarithmic.

A base 10 logarithm is a common logarithm.It is also known as decimal logarithm and is named after its base. It is also known as the Briggs logarithm, and the "standard logarithm", after Henry Briggs, the English mathematician who pioneered its use.Calculators usually say "logarithm", but mathematicians usually mean the natural logarithm (the logarithm with base e ≈ 2.71828), not the common logarithm when writing "logarithm". To reduce this ambiguity [tex]log_{10}x[/tex] should be written lg(x) and [tex]log_ex[/tex] must be ln(x).

We have given an logarithm function which is [tex]log_{10}100[/tex]   ..... (1)

As , we can see that this log has a base of 10 so , it is a common logarithm.

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8y - 9y = -8 hhhhhhhh

Answers

Answer:

-y

Step-by-step explanation:

i did the test

Answer:

Y=8

Step-by-step explanation:

Move all terms that don't contain y to the right side and solve.

In the picture below, which line segment is parallel to AD.

a. BC
b. EB
c. EH
d. CD

Answers

In the cuboid, the line segment parallel to AD is BC as they both lie on same plane and are directed in same direction.

What are parallel lines?

Two lines are said to be parallel if they lie on the same plane and are directed towards the same direction.

Given in the question is a labelled cuboid.

From the definition of parallel lines, they should lie on the same plane. Therefore, we will eliminate EB and EH because they don't lie in the plane of AB. CD lies in the plane of AB, but is directed perpendicular to AB. BC is in the same plane in which AB lies and is also directed in the direction of AB.

Therefore, in the cuboid, the line segment parallel to AD is BC.

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Find the zeroes of the quadratic polynomial x
2
+ x−12 and verify the relationship between the zeroes
and the coefficients.

Answers

Rewrite the given polynomial in the form ax² + bx + c:

To find the zeros, set the function to zero and solve for x using the quadratic formula.

Quadratic formula:

Therefore,

a = 2√3

b = 5

c = - 4√3

Substituting the values into the quadratic formula:

The sum of the roots of a polynomial is -b/a:

The sum of the found roots is:

Hence proving the sum of the roots is -b/a

The product of the roots of a polynomial is: c/a

The product of the found roots is:

Hence proving the product of the roots is c/a

Therefore, the relationship between the roots and the coefficients is verified.


Find the midpoint and distance for each:
1. A(0, 0) & B(8,4)

Answers

The midpoint between two points A(0,0) and B(8,4) is (4,2)

The distance between two points A(0,0) and B(8,4) is 4√5

To find the midpoint of two points,

We need to take an average of both the x and y components of both points

Two points A(x ₁,y₁) and B(x₂ ,y₂) are (0,0) and (8,4) respectively

Let M be the mid-point M(x, y),

x = x₁+x₂/2

 = 0+8/2

= 8/2

= 4

Similarly

y = y₁+y₂/2

  = 0+4/2

  = 4/2

  = 2

So, the midpoint of the two points A(0,0) and B(8,4) is (4,2)

To find the distance between two points,

We need to take the square root of the difference square of x and y, which is

d² = Δx² + Δy²

d = √(Δx²+Δy²)

Δx = x₂-x₁

    = 8-0

   = 8

Δy = y₂-y₁

    = 4-0

    = 4

Thus,

d = √(8²+4²)

d = √(64 + 16)  

d = √80

d = 4√5

So the distance between the two points is 4√5

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Find BC if B(8, -7) and C(-4,-2).

Answers

Key IdeasDistance equation for line segments

Solving the Question

We're given:

B(8, -7)C(-4,-2)Find BC

We can use the distance equation to help us solve this question:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

[tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are the endpoints of the line segment

Plug in the given points:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\d=\sqrt{(8-(-4))^2+(-7-(-2))^2}\\d=\sqrt{(8+4)^2+(-7+2)^2}\\d=\sqrt{(12)^2+(-5)^2}\\d=\sqrt{144+25}\\d=\sqrt{169}\\d=13[/tex]

Answer

The length of line segment BC is 13 units.

Using the distance formula, the length of BC is: 13 units.

How to Apply the Distance Formula?

Given that:

B(8, -7) = (x1, y1)

C(-4,-2) = (x2, y2)

The distance formula that would be used to find BC is, d =[tex]\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}[/tex].

Thus, applying the distance formula, we have:

BC = √[(−4 − 8)² + (−2 − (−7))²]

BC = √[(−12)² + (5)²]

BC = √(144 + 25)

BC = √169

BC = 13 units

Therefore, using the distance formula, the length of BC is: 13 units.

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Samwell bought a packet of pens. His receipt is shown above. Assume that sales tax is rounded to the nearest cent. If the 6% sales tax had been computed on the sale price instead of on the regular price, how much lower would the tax have been?

Answers

If the 6% sales tax had been computed on the sale price instead of on the regular price, the tax will be $0.04 lower.

How to calculate the difference?

It should be noted that from the information, Samwell bought a packet of pens and his receipt is shown above as $2.04.

Assume that sales tax is rounded to the nearest cent, If the 6% sales tax had been computed on the sale price instead of on the regular price, the difference will be:

Sales price = $1.89

Tax = $1.89 × 0.06 = $0.11

Therefore, the difference will be:

= Former tax amount - New tac amount

= $0.15 - 0.11

= $0.04

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When making lasagna, Mr. Singleton uses 1 pound of sausage for every 3/4 of a pound of mozzarella cheese. For a dinner party, Mr. Singleton wants to make an extra lasagna with 1 pound of mozzarella cheese. How much sausage will he need?

Answers

Using ratio we can calculate that Mr. Singleton used approximately 1.33  pounds of sausage .

A ratio demonstrates how frequently one number is found within another. For instance, the ratio of oranges to lemons in a fruit plate would be eight to six if there were eight oranges and six lemons.

A ratio can therefore be thought of as an ordered pair of integers, a fraction with the first number in the numerator and the second in the denominator, or as the value represented by this fraction. Ratios of counts that are expressed in terms of (non-zero) natural numbers are rational numbers and occasionally natural numbers as well. The ratio of two numbers is a dimensionless number when they are measured using the same unit, which happens frequently. A rate is the product of two quantities that are divided by their respective units of measurement.

He uses 1 pound sausage for every 3/4 pound of cheese.

Ratio of sausage to cheese = 1 : 0.75 = 4 : 3 .

Now he uses 1 pound of cheese therefore let he uses x pounds of sausage.

Now using ratio:

x : 1 = 4 : 3

or , x / 1 = 4 / 3

or, x = 1.333..

or, x ≈ 1.33 pounds

Hence he uses 1.33 about pounds of sausage

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10 is at least the product of a number h and 5

Answers

2x5=10, so 10 is the product of 2 and 5.

Answer:

h =2

Step-by-step explanation:

10=h ×5

10=h5

DBS by 5

10÷5=h5÷5

h=2

In your own words, explain why solving 4 = 2x uses the division property of equality. Provide an example with your explanation

Answers

In the given particular sum we have to give reason why asolving 4 = 2x uses the division property of equality.

The reason for that why it is using division property of equality we wneed to know what is division property of equality : It states that when both side of the equation is divided by a real number other than 0 then the quotients remain same . It can be written as following : if a,b,c are real numbers where a = b , c ≠ 0 then ac = bc

for example suppose we have two breads of same size . We cut each of them into halfs and give it to  our friends , if we measure the remaining portions we will see that we are left with same portions of bread . Here at initial both the breads were same and we divide it by 2 and find that they are still same.

Solving 4 = 2x using the division property because in order to get the last portion that answer we have divide the both sides by 2 to get x by itself .

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A rectangular garden has an area of 3m - 7m - 6.
Use the dimensions from Part A to determine an expression that gives the perimeter of the garden.
Reminder: P = 2L + 2W.

Answers

The perimeter of the whole figure includes the sum of the side lengths and the value is -2 - 4m units

What are areas?

The area of a shape is the amount of space on the shape.

For most regular shapes, the area is the product of their width and the length

How to determine the expression for the perimeter of the figure?

The area of this rectangle is given as

Area = 3m - 7m - 6

Evaluate the like terms

So, we have

Area = -4m - 6

The common factor of 4 and 6 is 2

So, we have the following equation

Area = 2(-2m - 3)

The area of the rectangle is

Area = Length * Width

So, we have

Length, L = 2

Width, W = -2m - 3

The perimeter of the rectangle is calculated as

P = 2 x (L + W)

So, we have

P = 2 x (2 - 2m - 3)

Evaluate the like terms in the above expression

So, we have

P = 2 x (-1 - 2m)

Open the bracket in the above expression

So, we have

P = -2 - 4m

Hence, the perimeter of the whole figure is -2 - 4m units

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A salt-water tank needs to contain 5 gallons of water for each 1-inch fish. If Ian has a 30-gallon tank, predict how many inch-long fish he can have.



inch-long fish

Answers

i think he can have 6 inch-long fish

if there is
5 gallons for 1-inch fish
you divide the 30 gallons by 5, you get 6
so there is a count of six 5 gallons meaning 6 1-inch fish

PLEASE HELP QUICK

Use function notation to write the equation of the line.

Answers

Answer:

Step-by-step explanation:

Answer: f(x) = x

Step-by-step explanation:

DG contains D, E, F, and G, in thy order. If DF = 12, EG = 15, and EF = 4, what is DG

Answers

Answer:

  23

Step-by-step explanation:

Given line segment DEFG and lengths DF=12, EG=15, EF=4, you want the length DG.

Segment addition

The segment addition theorem tells you the whole is the sum of the parts.

  DF = DE +EF

  12 = DE + 4

  8 = DE . . . . . . subtract 4

And ...

  DG = DE +EG

  DG = 8 +15 = 23

The length DG is 23 units.

Marcie cooked dinner for herself. The original recipe has a serving size of 4 and requires four and four fifths pounds of chicken. How many pounds of chicken will be needed for a single serving?

Answers

Pull 4 4/5ths apart - now it is 4 and 4/5ths. Divide both by four - 4/4 = 1, 4/5 / 4 = 1/5th

Now add your answers together;

1 1/5

Question
Write in scientific notation.

215 × 107

Responses

2.15 × 1092.15 × 109

2.15 × 1052.15 × 105

2.15 × 1072.15 × 107

2.15 × 1014

Answers

It should be noted that calculating 215 * 107 in scientific notation will be 2.15 × 10⁴

How to illustrate the information?

It should be noted that from the information, we want to calculate 215 * 107 in scientific notation.

It should be noted that 215 = 2.15 × 10²

It should be noted that 107 = 1.07 × 10²

Therefore, calculating 215 * 107 in scientific notation will be:

= 215 × 107.

= 2.15 × 10² × 1.07 × 10²

= 2.15 × 10⁴

Therefore it should be noted that calculating 215 * 107 in scientific notation will be 2.15 × 10⁴

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find the compound interest 316,000 naira in 3yrs if the interest rate is 5% per annum​

Answers

Answer:

the compound interest will be 365,809.5 naira.

Your take home pay is $1,944 with 19% tax taken out.

What is your gross pay before taxes are taken out?

Answers

The gross pay before taxes are taken out is $2400

For the following geometric sequence find the recursive formula.
(1, -3, 9, ...)
an-3-an-1 where a₁ = 1
Oan= (-3) -1
an=-3-an-1 where a₁ = -1
an=-1-(-3) -1

Answers

Answer: the 2nd one

Step-by-step explanation: first term (a1) is -1

recursive formula goes like this

is the nth term

is the term before that

we normally have

we see each term is multipying by -3 to get next one

so that would be

where a1=-1

the 3rd option is correct except that it is the explicit formula

so answer is 2nd one.

Answer:

45

Step-by-step explanation:

run plus duck equals to the implement

Question in florida, 55% of adults live in a house, 25 of adults live in an apartment, 4.6% of adults live in a condo and the rest live on a boat. what percent of people live on a boat? write the equivalent decimal and fraction to represent the percent you solved for.

Answers

The percentage of people living on boat in Florida is 15.4%. The equivalent of this percentage to decimal is 0.154 and to fraction is 77/500.

55% live in a house, 25% live in an apartment, 4.6% in condo while the rest live on a boat. If all the percentages are summed up, they must be equal to 100%.

Let a% equals to the percentage of adult living on boat

55+25+4.6+a = 100

84.6 + a = 100

Collect like terms

a = 100 - 84.6

a = 15.4%

Therefore, the percentage of adult living on boat is 15.4%

To convert the percentage to decimal equivalence, one must divide it by 100%

15.4%/100%

= 15.4/100

= 0.154

To convert the percentage to fraction equivalence, one have to divide it by 100%

15.4%/100%

= 15.4/100

One has to make both the numerator and denominator of the fraction whole numbers, to do that one has to shift the decimal place behind the last digit, for a number without decimal point a 0 is added to the back of the number.

= 154/1000

Reducing the fraction to its lowest term, this is done by diving the numerator and denominator by a common factor

= 77/500

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What is the simplified form of each expression?
b. 11¹/² . 11¹/²

Answers

The simplified form of the expression is 11.

Fractions are in their simplest form when they have no common divisors other than one at their top and bottom. The top and bottom cannot be divided further and remain integers.

You may also hear the simplest form called "lowest term."

In preferred, an expression is in only form while it's far easiest to use not unusual methods to help you simplify:

Combine Like terms

Factoring

Increasing (the opposite of factoring)

Clean out fractions by multiplying

Recognizing a pattern you have seen earlier, just like the difference between squares

Simplify the following:

sqrt(11) * sqrt(11)

sqrt(11)  * sqrt(11) = 11:

Answer: 11

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In 5-7 complete sentences, write a real world situation that can be modeled by the equation. Make it fun by using your name, if you want!


16x=14x+8

Answers

A possible real world scenario is that the product of your age and 16 is 8 more than the product of your age and 14

What are expressions?

Expressions are mathematical statements that are represented by variables, coefficients and operators

How to model the expression by a real world situation?

The equation is given as

16x = 14x + 8

In the above equation, the variable of the equation is x while the number 8 is a constant

A possible real world scenario is that:

The product of your age and 16 is 8 more than the product of your age and 14

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In the following diagram, a is parallel to b and m is parallel n.

m<2=x^2+5x
m<4=11x+16


Note: the diagram may not be drawn to scale.

Answers

The is a parallel to b and m is parallel n.

The values of x is -2 and 8.That both values not work in geometric problem.

Given that

a is parallel to b and m is parallel n.m∠2=x²+5xm∠4=11x+16

To find

The value of x.That both values of x are working with this problem.

So, according to the question

We have,

a is parallel to b and m is parallel n.

and the value of two angles m∠2 and m∠4.

m∠2=x²+5xm∠4=11x+16

From diagram we can see a is parallel to b and m is parallel to n.

So, we can say that

   m∠4 = m∠3    { they are vertical congruent angles } and

   m∠3 = m∠2    { they are congruent angles}

∴  m∠4 = m∠2 -------------(1)

Now, putting the values in equation(1)

So, will be get

                m∠4 = m∠2 -------------(1)

              11x+16 = x²+5x

  x²+5x - 11x-16 = 0

         x²- 6x-16 = 0  

    x²-8x+2x-16 = 0  

  x(x-8)+2(x-8) = 0

        (x-8)(x+2) = 0

If               (x+8) = 0

                      x = 8

And if        (x+2) = 0

                      x = -2

The values of x is -2 and 8.

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