In parallelogram ABCD, AB=7cm and the perimeter of ABCD is 30cm. What is the length of AD?

Answers

Answer 1

Answer:

8cm

Step-by-step explanation:

Ab=7cm

Since opposite sides are equal

Cd=7cm

7cm + 7cm = 14cm

Perimeter equals 30cm

:.30cm - 14cm =16cm (bc+ad)

Since both bc and ad are equal,

16cm/2=8cm

:.ad=8cm

Answer 2

Final answer:

In a parallelogram, opposite sides are equal, so by using the given perimeter of 30 cm and one side of 7 cm, we find the length of the adjacent side AD to be 8 cm.

Explanation:

In the given problem with parallelogram ABCD, we know AB = 7 cm and the perimeter is 30 cm. In a parallelogram, opposite sides are equal in length, so if AB = 7 cm, then CD also equals 7 cm. The perimeter P of a parallelogram is the sum of all its sides:

P = AB + BC + CD + DA

Given P = 30 cm and AB = CD = 7 cm, we can find the length of AD (which is also equal to BC) using the formula:

P = 2(AB + AD)

30 = 2(7 + AD)

30 = 14 + 2(AD)

30 - 14 = 2(AD)

16 = 2(AD)

AD = 16 / 2 = 8 cm

Therefore, the length of AD is 8 cm.


Related Questions

Positive integer A has 2 different prime factors: p and q (p<q) such that A = pq. Positive integer B is greater than A and the quotient A^2/B is an integer. How many possible values of B are there? PLEASE GIVE AN EXPLANATION WITH YOUR ANSWER! ​

Answers

Answer:

4

Step-by-step explanation:

The integer A^2 will have 9 divisors:

1, p, q, p^2, pq, q^2, p^2q, pq^2, p^2q^2

Of these, the last 4 are greater than A. Hence there will be these 4 values of B.

Answer:

it removed body waste like and instructions

Which equation represents a line that passes through (–9, –3) and has a slope of –6?

Answers

Answer:

y + 3 = -6(x + 9) - point-slope formy = -6x - 57 - slope-intercept form

Step-by-step explanation:

The point-slope form of an equation of a line:

[tex]y-y_1=m(x-x_1)[/tex]

m - slope

The formula of a slope:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

========================================

We have the slope m = -6 and the point (-9, -3).

Substitute:

[tex]y-(-3)=-6(x-(-9))\\\\y+3=-6(x+9)[/tex]

Convert to the slope-intercept form (y = mx + b):

[tex]y+3=-6(x+9)[/tex]           use the distributive property

[tex]y+3=-6x-54[/tex]         subtract 3 from both sides

[tex]y=-6x-57[/tex]

A angle measures 83 degrees what is its supplement?

Answers

Answer:

<2 = 97

Step-by-step explanation:

Definition: Supplementary angles are 2 or more angles with the same vertex that add up to 180o

Solution

<1 = 83

<2 = ?

Total = 180o

<1 + <2 = 180                   Substitute for angle 1

83 + <2 = 180                  Subtract 83 from both sides.

83 - 83 + <2 = 180 - 83   Do the subtraction

<2 = 97 degrees

Final answer:

The supplement of an 83-degree angle is the angle that adds up to 180 degrees with it. By subtracting 83 from 180, we find that the supplement of the angle is 97 degrees.

Explanation:

The question is asking for the supplement of an angle that measures 83 degrees. In geometry, the supplement of an angle is the angle that, when added to the original angle, equals 180 degrees. To find the supplement of an 83-degree angle, you subtract 83 from 180.

Step-by-step solution:

Start with the total measure of a straight line, which is 180 degrees.Subtract the given angle from 180 degrees: 180 - 83 = 97 degrees.The supplement of an 83-degree angle is therefore 97 degrees.

what would be the values of f(f-1(17)) and f-1(f(2))? FAST HELP

Answers

Answer:

f(f-1(17)) = 17

f-1(f(2)) = 2

Step-by-step explanation:

Lemma;

If f(x) and g(x) are inverses, then the compositions  f(g(x)) = g(f(x)) = x.

In both situations, we are determining the composite of inverse functions;

f and f-1

The base of a 11 foot ladder is 2 feet from a building . If the ladder reaches the flat root , how tall is the building ?

Answers

We can utilize the Pythagorean theorem to answer this.

11 is the hypotenuse in this case, and 2 is one of the legs.

11² = 2² + x² =

121 = 4 + x²

117 = x²

√117 = x

Answer = √117

Final answer:

Using the Pythagorean theorem with the length of the ladder as the hypotenuse and the base distance as one side, we calculate the height of the building to be approximately 10.82 feet.

Explanation:

The student's question can be solved using the principles of the Pythagorean theorem, which relates the lengths of the sides of a right triangle.

In this scenario, the ladder, the building, and the ground form a right triangle.

The ladder serves as the hypotenuse, the height of the building is the opposite side, and the distance from the ladder's base to the building is the adjacent side.

To find the height of the building, we can set up the equation using the Pythagorean theorem as follows:

a2 + b2 = c2

where a is the distance from the base of the ladder to the building (2 feet), b is the height of the building, and c is the length of the ladder (11 feet).

Plugging in the values we have:

22 + b2 = 112,4 + b2 = 121,b2 = 121 - 4,b2 = 117.

Therefore, the height of the building is:

b = √117 ≈ 10.82 feet.

The building is approximately 10.82 feet tall.

1. y = sin? (In x). Find dy
Show your work. en nuov vlomia
A.
sin (In x2)
х
cos? (In x)
c. sin (In x) cos(Inx)
D.
2 sin (In x) cos(In x)
E. None of the above.

Answers

Answer:

dy/dx=  cos(ln(x))/x

Step-by-step explanation:

y=sin(ln(x)) given

We have to use chain rule to differentiate!

Let u=ln(x) then du/dx=1/x

So we have

if y=sin(ln(x)) then y=sin(u) and dy/dx=dy/du * du/dx=cos(u) *1/x

where again u=ln(x) so

dy/dx=cos(ln(x)) *1/x

dy/dx=cos(ln(x))/x

I hope I have the right intepretation because I do see a ? in between sin and (ln(x)) .

the circumference of a circle is 64 cm.find the diameter ,the radius,the length of an arc of 190

Answers

Final answer:

The diameter of the circle is approximately 20.37 cm, the radius is approximately 10.18 cm, and the length of an arc measuring 190 degrees is approximately 33.8 cm.

Explanation:

The subject at hand concerns the properties of a circle, more specifically its circumference, diameter, radius, and arc length.

In this case, we know that the circumference of the circle is 64 cm. The circumference of a circle is calculated by the formula 2πr (where r is the radius), or can also be viewed as πd (where d is the diameter). If we equate 64 = 2πr, we can thus find the radius, r = 64/(2π), resulting in roughly a radius of 10.18 cm. The diameter of the circle is simply twice the radius, hence in this context, it would be roughly 20.37 cm.

The length of an arc is calculated by multiplying the radius by the angle (in radian measure), which is represented as θ = s/r. In this case, the arc length is not given directly but we are given an angle of 190, and this seems to denote 190 degrees. Although it's important to mention that the standard measure for calculating arc length is radians, if we convert 190 degrees into radians, we get about 3.32 rad. Thus the length of this specific arc will be r*θ=10.18*3.32, resulting in an arc length of about 33.8 cm.

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Final answer:

The radius of the circle with a circumference of 64 cm is approximately 10.18 cm, the diameter of the circle is 20.36 cm and the length of an arc of 190 degrees in this circle is approximately 33.78 cm.

Explanation:

The given circumference is 64 cm. In a circle, the circumference is given by the formula 2πr = Circumference, where r is the radius and π is a constant approximately equal to 3.14. We can rearrange this formula to find the radius: r = Circumference / 2π. Substituting the given value of the circumference, we have r = 64 cm / 2π ≈ 10.18 cm. This is the radius of the circle.

The diameter of a circle is twice the radius, hence the diameter of the circle is 2 * 10.18 cm = 20.36 cm.

Now, to find the length of an arc of 190 degrees in this circle, we first understand that the total angle in a circle is 360 degrees. Hence, the length of the arc corresponding to 190 degrees will be the ratio of 190 to 360 times the circumference. Therefore, arc length = (190/360) * 64 cm ≈ 33.78 cm.

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A line has a slope of 1/4 and passes through point (0.4,-1/2). What is the value of the y-intercept?

Answers

Answer: The value of the y-intercept is [tex]-\frac{3}{5}[/tex]

Step-by-step explanation:

The equation of the line in Slope-intercept form is:

[tex]y=mx+b[/tex]

Where "m" is the slope and "b" is the y-intercept.

In this case we know that the line passes through point [tex](0.4,-\frac{1}{2})[/tex] and has a slope of [tex]\frac{1}{4}[/tex]. Then we can substitute the following values into  [tex]y=mx+b[/tex]:

[tex]x=0.4\\\\y=-\frac{1}{2}\\\\m=\frac{1}{4}[/tex]

Then:

[tex]-\frac{1}{2}=\frac{1}{4}(0.4)+b[/tex]

And finally, we must solve for "b":

[tex]-\frac{1}{2}=\frac{1}{4}(0.4)+b\\\\-\frac{1}{2}-\frac{1}{10}=b\\\\b=-\frac{3}{5}[/tex]

For this case we have that by definition, the slope-intersection equation of a line is given by:

[tex]y = mx + b[/tex]

Where:

m: It's the slope

y: It is the cut point with the "y" axis

They tell us as data that:

[tex]m = \frac {1} {4}[/tex]

So, the equation is:

[tex]y = \frac {1} {4} x + b[/tex]

We substitute the given point to find "b":

[tex]- \frac {1} {2} = \frac {1} {4} (0.4) + b\\- \frac {1} {2} = \frac {0.4} {4} + b\\b = - \frac {1} {2} - \frac {0.4} {4}\\b = -0.5-0.1\\b = -0.6[/tex]

Thus, the cut point with the y axis is -0.6

Answer:

[tex]b = -0.6[/tex]

Convert 12 and a half of 30

Answers

Answer:

375

Step-by-step explanation:

12½[30] → 25⁄2[30]

Multiply 25 by 30 [750] then divide by 2 to get 375.

I am joyous to assist you anytime.

What makes a trapezoid an isosceles trapezoid?
A. Its legs are congruent.
B. its bases are congruent
C. Its opposite angles are congruent.
D. Its diagonals bisect each other

Answers

B. It’s bases are congruent

Explanation: A trapezoid is a quadrilateral with exactly one pair of parallel sides. In a trapezoid the parallel sides are called bases. A pair of angles that share a base as a common side are called a pair of base angles. A trapezoid with the two non-parallel sides the same length is called an isosceles trapezoid.

Answer:

  A.  Its legs are congruent.

Step-by-step explanation:

It is a parallelogram if ...

the bases are congruent,opposite angles are congruent, orthe diagonals bisect each other.

Self-Check
Practice Exercise 4

Answers

A.1,2,7,8
B. 3,4,5,6
C.4&5,3&6
D. 2&7,1&8
E. 2&6,4&8,1&5,3&7

A. Alternate interior
B. Corresponding angles
C. Alternate exterior

Kelly shares 3 candy bars equally between her 5 friends. What fraction of a candy bar does each friend receive?

A- three fifths candy bar
B- one third candy bar
C- five thirds candy bar
D- one fifth candy bar

Answers

Answer:

three fifths candy bar

Step-by-step explanation:

3/1 ÷ 5/1

3/1 × 1/5 = 3/5

Answer:

3 fiths of a candy bar

Step-by-step explanation:

Which of the following are solutions to | x+3 = 4x - 7? Check all that apply.

Answers

Answer:

x=​5/​4, ​3/10

Answer:B. x=10/3

Step-by-step explanation:

A P E X

Let f(x)=x^2-5x-36.

Enter the x-intercepts of the quadratic function in the boxes.

x= and x=

please help

Answers

Answer:

9 and -4

Step-by-step explanation:

Find two numbers that multiply to be -36 and add to be -5.

That is -9 and 4.

So the factored form of x^2-5x-36 is (x-9)(x+4)

So the x-intercepts are 9 and -4

It’s Choose More than one answer Just to let you know ..and can someone please help ..please

Answers

Answer:

Step-by-step explanation:

Answer x = 0

1 < 0 and 13<0

The answer is 2

Since 0 can’t be the answe because 0 is less than 1 not greater than 1

14 is greater than 13 so the answer is 2

Identify the linear term in the function of y = 2x2 − 5x − 12

Answers

Answer:

The linear term is -5x

Step-by-step explanation:

The linear term is the term that has the degree equal to 1.

The given function is

y = 2x^2 − 5x − 12

here 2x^2 = quadratic term i.e having degree 2

-5x = linear term i.e having degree 1

-12 = constant

so, The linear term is -5x

4. Simplify the following expression: (2/5+4/3)/(3/5)
A. 3/14
B. 75/131
C. 26/9
D. 11/144​

Answers

it’s C because 2/5+4/3= 26/15 then divide it by 3/5 and you get 26/9

Answer: [tex]\bold{C.\quad \dfrac{26}{9}}}[/tex]

Step-by-step explanation:

[tex]\bigg(\dfrac{2}{5}+\dfrac{4}{3}\bigg)\div\dfrac{3}{5}\\\\\\\text{According to PEMDAS, the parenthesis must be performed first.}\\\\\bigg[\dfrac{2}{5}\bigg(\dfrac{3}{3}\bigg)+\dfrac{4}{3}\bigg(\dfrac{5}{5}\bigg)\bigg]\div\dfrac{3}{5}\\\\\\\bigg(\dfrac{6}{15}+\dfrac{20}{15}\bigg)\div\dfrac{3}{5}\\\\\\\dfrac{26}{15}\div\dfrac{3}{5}\\\\\\\text{Dividing by a fraction is multiplying by its reciprocal.}\\\dfrac{26}{15}\times\dfrac{5}{3}\\\\\\\text{Simplify.}\\\dfrac{26}{3}\times\dfrac{1}{3}[/tex]

[tex]=\large\boxed{\dfrac{26}{9}}[/tex]

what is 9+5x-6+2x ???

Answers

ANSWER:

7x + 3

let us break the problem into two smaller equations that match-

5x + 2x = 7x

9 - 6 = 3

this leaves you with 7x + 3.

Ok first add 5x and 2x which is 7x
Then you will do 9-6 which is 3

So your answer will be 7x-3

If f(x) = 2x-1 + 3 and g(x) = 5x-9, what is (f-g)(x)?

Answers

Answer:

-3x+11

Step-by-step explanation:

f(x) = 2x-1 + 3 =2x+2

g(x) = 5x-9

(f-g)(x)=  2x+2 - (5x-9)

Distribute the minus sign

         = 2x+2 - 5x +9

Combine like terms

        = -3x+11

What is the solution to the equation

Answers

Answer:

The solution of given equation 5(x - 6) = 2(x + 3) is given by,

x = 12

Step-by-step explanation:

It is given that,

5(x - 6) = 2(x + 3)

To find the solution of given equation

5(x - 6) = 2(x + 3)

5x - (5 * 6) = 2x + (2 * 3)

5x - 30 = 2x + 6

5x - 2x = 6 + 30

3x = 36

x = 36/3

x = 12

Therefore the solution of  given equation is,

x = 12

Clara solved the equation 7/3x = −2/3 as shown → 7/3x( 3/7 ) = −2/3 ( 3/7 ) x = −14 What is Clara’s error?

Answers

Answer:

The solution is -2/7 not –14.

Answer:

its D

Step-by-step explanation:

9) Out of the 15 friends that I have, the
proportion of blonds to brunettes is 6 to 9.
Which of the following statements is false?
a) The ratio of the number of
friends to brunettes is 15 to 9
b) The ratio of brunettes to blonds
is 6 to 9
c) The ratio of blonds to the
number of friends is 6 to 15
d) The ratio of brunettes to the
number of friends is 9:15

Answers

The answer is b because the ratio is blondes to brunettes.

Follow below steps;

The student asked which statement about the proportions of blonds and brunettes among their 15 friends is false. Given that the proportion of blonds to brunettes is 6 to 9, let's evaluate the options:

Option a) The ratio of the number of friends to brunettes is 15 to 9. This statement is true since there are 15 friends in total and 9 of them are brunettes.

Option b) The ratio of brunettes to blonds is 6 to 9. This statement is false because the proportion of blonds to brunettes is 6 to 9, so the ratio of brunettes to blonds should be 9 to 6.

Option c) The ratio of blonds to the number of friends is 6 to 15. This statement is true because there are 6 blonds out of 15 friends.

Option d) The ratio of brunettes to the number of friends is 9:15. This statement is also true because there are 9 brunettes out of 15 friends.

Therefore, option b is the false statement as the ratio of brunettes to blonds is incorrectly stated as 6 to 9 instead of the correct ratio 9 to 6.

News cameras take an overhead picture of a part of a crowd at an outdoor event. Journalists then count the number of people in the picture and use the sample to estimate the total number of people in the crowd. This process is an example of

Answers

Answer:

cluster system

Step-by-step explanation: For edgunity

This process is an example of cluster system.

The following information should be considered:

A cluster refers to a group of inter-connected computers where it work together for support applications and middleware (e.g. databases). In a cluster, each & every computer is known to be a “node”.

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The equation c = 6.5h represents the cost, c, of renting a bicycle for h hours. The table below can be used to show the same information.

Cost for Renting Bicycles
Number of Hours (h)
0
2
4
6
Cost (c)


If Francesca rents a bicycle for 2 hours and Phil rents a bicycle for 6 hours, how much more does Phil pay?

Answers

Answer:

$26

Step-by-step explanation:

To find your answer, simply plug in Francesca's time and Phil's time to your cost equation.

Francesca can be represented by the following equation:

[tex]c=6.5(2)\\c=13[/tex]

Phil can be represented by the following equation:

[tex]c=6.5(6)\\c=39[/tex]

As such, Francesca pays $13 and Phil pays $39. Next, since you want to find how much more Phil paid, all you have to do is subtract 13 from 39. That will give you $26.

Which mathematical property is demonstrated below?
a + b + 7 = 7+ b + a

Answers

Step-by-step explanation:

the demonstrated property is the commutative property

The equation a + b + 7 = 7 + b + a demonstrates the commutative property of addition, which means that the order of addition does not change the sum.

The mathematical property demonstrated by the equation a + b + 7 = 7 + b + a is the commutative property of addition. This property states that the order in which two numbers are added does not affect the sum. In other words, swapping the operands does not change the result. As shown in the equation and the principles outlined, whether you add a to b or b to a, the sum remains the same. This is true for the addition of ordinary numbers as well— you get the same result whether you add 2 + 3 or 3 + 2, for example.

This triangle below has an area of 24 units squared. Find the missing side.​

Answers

b*h/2 is the formula for area

8*h= 24

24*2= 48

48/8= 6

6 is the height/ missing side

The value of x for the given right angle triangle such that its area is 24 units² will be 8.

What is a triangle?

A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle.

The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.

As per the given triangle,

The area of right angle triangle = (1/2)8 × x

(1/2)8 × x = 24

x = 24/4 = 8

Hence "The value of x for the given right angle triangle such that its area is 24 units² will be 8".

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find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Answers

Finding the slope using two points:

The formula for slope is

[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

In this case...

[tex]y_{2} =-2\\y_{1} =4\\x_{2} =6\\x_{1} =-2[/tex]

^^^Plug these numbers into the formula for slope...

[tex]\frac{-2 - 4}{6 - (-2)}[/tex]

[tex]\frac{-6}{8}[/tex]

^^^Can be further simplified to...

[tex]\frac{-3}{4}[/tex]

^^^This is your slope

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

[tex]{\displaystage\boxed{\frac{-3}{4}}[/tex]

Step-by-step explanation:

Slope formula:

     ↓

[tex]\displaystyle\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\displaystage y_2=(-2)\\\displaystage y_1=4\\\displaystage x_2=6\\\displaystage x_1=(-2)\\[/tex]

[tex]\displaystage \frac{-2-4}{6-(-2)}=\frac{-6}{8}=\frac{-6\div2}{8\div2}=\frac{-3}{4}[/tex]

-3/4 is the correct answer.

I hope this helps you, and have a wonderful day!

Boston Terriers weigh up to 25 lb suppose a puppy of this breed weighs 15 pounds write and solve an inequality to show how much more the dog could probably white show the work​

Answers

Answer:

15+x<_25

Step-by-step explanation:

however much weight the puppy gains (x) can not be greater than 25 but can be equal to 25

Answer:

[tex]15+x\leq 25[/tex]

So, [tex]x\leq 10[/tex]

Step-by-step explanation:

Boston Terriers weigh up to 25 lb.

Suppose a puppy of this breed weighs 15 pounds.

Let the puppy can weigh 'x' pounds more.

So, [tex]x=25-15=10[/tex]

But as it is given the maximum weight can be 25 pounds, so the puppy can weigh a maximum of 10 pounds more.

Given by :

[tex]15+x\leq 25[/tex]

So, [tex]x\leq 10[/tex]

For his long distance phone service, bill pays a $7 monthly fee plus 7 cents per minute. Last month, bill’s long distance bill was $18.27. For how many minutes was bill billed?

Answers

Answer:

161 minutes

Step-by-step explanation:

$1827-$7=$11.27

$11.27/.07=161

Answer:

161 minutes

Step-by-step explanation:

Bill pays a monthly fee for his long distance phone service = $7.00

and call charges per minute = 7 cents

1 dollar = 100 cents

Therefore 7 cents = [tex]\frac{7}{100}[/tex] = $0.07

Last month, Bill's long distance bill was $18.27.

Let Bill used the phone service for x minutes

The equation for his uses in minutes :

7.00 +(0.07x) = 18.27

0.07x = 18.27 - 7.00

0.07x = 11.27

x = [tex]\frac{11.27}{0.07}[/tex]

x = 161 minutes

Bill was billed for 161 minutes.

whats the exanded expression for -7(k-3)

Answers

Answer:

-7k+21

Step-by-step explanation:

Distributive Property:

    ↓

[tex]A(B+C)=AB+AC[/tex]

A=-7, B=K, and C=3

-7k+7*3

Multiply by the numbers from left to right to find the answer.

7*3=21

-7k+21 is the correct answer.

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