In the accompanying diagram of a parallelogram
ABCD ,DC= 5x-18, BC=3x-6, AB=2x+12 find measure BC. Please help

In The Accompanying Diagram Of A Parallelogram ABCD ,DC= 5x-18, BC=3x-6, AB=2x+12 Find Measure BC. Please

Answers

Answer 1

Answer:

BC = 39

Step-by-step explanation:

Given:

DC = 5x - 18,

BC = 3x - 6,

AB = 2x + 12

Opposite sides of a parallelogram are equal.

Therefore:

AB = DC

2x + 12 = 5x - 18

Collect like terms

12 + 18 = 5x - 3x

30 = 2x

Divide both sides by 2

15 = x

x = 15

BC = 3x - 6

Plug in the value of x

BC = 3(15) - 6 = 45 - 6

BC = 39


Related Questions

please can someone express √5 as a fraction? ​

Answers

Answer:

SInce this continued fraction does not terminate, we can tell that √5 cannot be represented as a terminating fraction - i.e. a rational number. So √5 is an irrational number a little smaller than 214=94 . For better rational approximations you can terminate the continued fraction after more terms.

hope this help!

WHO EVER ANSWERS GETS BRAINLY
Which Property of Equality would you use to solve this one step equation? −4x = 48

Addition Property of Equality
Subtraction Property of Equality
Multiplication Property of Equality
Division Property of Equality

Answers

Answer:

Division Property of Equality

Step-by-step explanation:

-6 + 4 + (-10)
plz answer and show ur work !

Answers

(-6)+4= -2

-2+(-10)= -12

Final answer= -12

Explanation: I’m smart

28 in 21 in., 20 in.
Is this a right triangle?

Answers

Answer:

No, it is not a right triangle.

Step-by-step explanation:

The simplest way to determine is testing out the numbers with Pythagorian theorem.

If it complies with the theorem, it is a right triangle.

let's assume c = 28, b = 21, and a = 20

the longest side is the hypotenuse so side c (28 in) will be the hypotenuse.

According to the Pythagorian theorem, the square of the length of hypotenuse must equal to the sum of squares of other two sides.

check:

c^2 = 28^2 = 784

a^2 + b^2 = 21^2 + 20^2 = 841

because c^2 is not equal to a^2 + b^2, the triangle is not a right triangle.

A bird is flying at an elevation of 3 5/8 feet above sea level. A fish swims directly under the bird at a depth of 5 1/3 feet below sea level. How far apart are the two creatures?

Answers

Given :

Distance of bird from sea level, [tex]d_1 = 3\dfrac{5}{8} = \dfrac{29}{8}\ feet[/tex] .

Distance between fish and sea level, [tex]d_2=5\dfrac{1}{3}=\dfrac{16}{3}\ feet[/tex] .

To Find :

Distance between bird and fish.

Solution :

Distance between bird and fish is given by :

[tex]D=d_1+d_2\\\\D = \dfrac{29}{8}+\dfrac{16}{3}\\\\D=8.958\ feet[/tex]

Therefore, distance between bird and fish is 8.958 feet.

Hence, this is the required solution.

Simon bought 3.5 pounds of Beef on sale for $1.25 per pound at HEB. If Simon gave the cashier $10.00, how much change would he receive from this purchase?

Answers

Answer:

$5.625

Step-by-step explanation:

Cost per pound of beef = $1.25 per pound

Number of pounds purchased = 3.5 pounds

Amount given to cashier = $10.00

Amount of change to receive from cashier =?

Amount issued to cashier - total cost of beef

Total cost of beef = (number of pounds * cost per pound)

Total cost of beef = (3.5 * 1.25) = $4.375

$10 - $4.375 = $5.625

m/2+m evaluate if m 14

Answers

Answer:

21

Step-by-step explanation:

To add fractions find the LCD and then combine

Lin rode her bike 3 miles in 10 minutes. She rode at a constant speed. How many minutes
did it take her to travel one mile?

Answers

Answer:

It would be about 3 minutes because if you take 10 and divide it by 3 it gives you 3.333333 and if you round that it would still be 3 or if you do it the other way around you would get .3 witch wouldnt be right so that should be your answer

Step-by-step explanation:

(25 POINTS) Match the two triangles that are congruent to each other. Please also explain :) thanks

Answers

Answer:

Triangle ABC and Triangle JLK

Step-by-step explanation:

For Triangle ABC the 8 and 10 are both on the same if you turn Triangle JLK over clock wise it will be the same and plus both insides are 20 degrees. While the other Triangles have their 8 and 10 on other sides.

Can someone give me the answers to this please I will give you brainlyest
(100 points)​

Answers

Answer:

9-81881=992

Step-by-step explanation:

naomi has earned $54 mowing lawns the past two days. she worked 2 1/2 hours yesterday and 4 1/4 hours today. if naomi is pains the same amount for every hour she works, how much does she earn per hour to mow lawns

Answers

Answer:

Naomi charges $8 an hour to mow lawns

Step-by-step explanation:

first day // 2 1/2= 2.5 hrs

2nd day // 4 1/4= 4.25 hrs

2.5hrs + 4.25hrs = 54hrs // 6.75hrs = 54hrs

/6.75    /6.75

= 8hrs

Really hope this helps!

-10.2+c=-8.14
Helpppp

Answers

Answer:

c=18.34

Step-by-step explanation:

Mike and Julie receive $20,000 in gifts from friends and relatives for their wedding.
They deposit the money into an account that pays 2.75% interest, compounded daily.
Will their money double within 10 years?

Answers

Answer:

Let me say it real slow for you....

NO

Step-by-step explanation:

Welcome~

Vote brainly for how fabulous i am...

Can anyone help me pleasesss

Answers

Answer:

$7 per week

Step-by-step explanation:

39 - 37 = 7

1 - 0 = 1

7/1 = 7

Answer:

7

Step-by-step explanation:

39 - 32 (one week) = 7

53 - 39 (2 weeks) = 14, 14/2 = 7

A book sold 39,300 copies in its first month of release. Suppose this represents 6.1% of the number of copies sold to date. How many copies have been sold to dat? Round your answer to the nearest whole number

Answers

Answer:

644,262 copies

Step-by-step explanation:

Since this is a proportion problem, and we are given three values and one variable which is the total number of copies sold to date (x). Then we can use the Rule of Three to solve this problem. To do this we simply multiply the diagonal values and divide by the last value which would give us the value of the variable x

39,300 copies  <======>  6.1%

    x   copies   <=======>  100%

(100*39,300) / 6.1 = 644,262 copies

Therefore, a total of 644,262 copies have been sold to date.

write each number in standard form 6.7x10 to the 1 power

Answers

Answer: 67

Step-by-step explanation: 6.7 x 10^1 = 67

The sum of two numbers is 73. The difference of two numbers is 29. Find the two numbers.

Answers

Answer:

the answer is 35 and 38 because 35+38 is 73 and when u subtract 35 from 38, you get 3.

Step-by-step explanation:

36.78
by
2.4
.
15.325 this the answer

Answers

Answer:

36.78 by 2.4 = 88.272

The value of a rare baseball card issued in 1989 is represented by the function )-0.2-252+3x +4 where x represents the number of years since the baseball card was issued. Use the Remainder Theorem to find the value of the card in 1999

Answers

The correct format of the question is

The value of a rare baseball card issued in 1989 is represented by the function f(x) = [tex]0.2x^3- 0.25x^2+3x +4[/tex] where x represents the number of years since the baseball card was issued. Use the Remainder Theorem to find the value of the card in 1999

Answer:

The value of the card in 1999 is 209

Step-by-step explanation:

The remainder theorem says that

If you divide a Polynomial by f(x) be a Linear factor of the form (x-a) the remainder will be equal to F(a).

f(x) = [tex]0.2x^3- 0.25x^2+3x +4[/tex]  

So we need to find from 1989 to 1999 which is 10 years

so our a = 10

Factor will be x-10

Applying remainder theorem

[tex]\frac{ 0.2x^3 -0.25x^2+3x+4}{x-10}[/tex]

we will get

Quotient = [tex]0.2x^2 + 1.75x +20.5[/tex]

Remainder = 209

Verifying our result

F(10) = [tex]0.2(10)^3 -0.25(10)^2 + 3(10) + 4[/tex]

        = 200 -25 + 30 + 4

        = 209

305,000,000 in scientific notation ​

Answers

Move the decimal So that you have one number to the left of it. Count the number of spaces it was moved. Remove all trailing 0’s.

Multiply by 10 raised to the power of the number is spaces the decimal was moved.

3.05 x 10 ^8

I need to graph this on a graph and I don’t understand how

Answers

Answer:

this should be correct, im sorry im wrong.

Step-by-step explanation:

Answer:

Look at explanation

Step-by-step explanation:

y = mx + b

m is the slope, and b is the y-intercept

So basically on the y-axis, which is the vertical line, u will make a point on 4, and that point is where your line will go through. And then 3 is the slope ur line will be going in, meaning that the line will go up 3 square units, or number, while only going one square unit to the right. It's going up and right because it's a positive number. So it should look like this:

Does anyone know or can tell me where I can find the answer of the book of math Sommet secondary two?

Answers

This is not a very good thing to be doing, but I use Slader. On Slader, people answer the questions on textbooks. I guess it's kind of like Brainly, but the questions are already there. I used to use Slader for Big Ideas. Make sure to read the explanations so you get the topic though.

The price of a gallon of unleaded gas was $2.87 yesterday. Today, the price fell to $2.80. Find the percentage decrease. Round your answer to the nearest tenth of a percent

Answers

2.49%
2.87 : (2.87-2.80) = 100 : x

1/2 ÷ ______ = 2

Please help

Answers

Answer:

1/2 ÷ 0.25 = 2

Step-by-step explanation:

Answer:

4 i hope i helped

Step-by-step explanation:

A rectangular garden has a walkway around it. The area of the garden is 2​(​6.5x + 3.5). The combined area of the garden and the walkway is 3.5(8x + 6). Find the area of the walkway around the garden as the sum of two terms.

Answers

Answer:

15x+14

Step-by-step explanation:

10x + 4y = 20
13x - 4y = -66
If x = -2, what is the value of y?

Answers

Answer:

y = 10

Step-by-step explanation:

If x = -2

10x + 4y = 20

10(-2) + 4y=20

-20+4y=20

4y= 20+20

4y=40

y=10

If x=2 and y=10

13x - 4y = -66

13(-2) - 4(10) =-66

-26 -(-40) = 66  so it all checks out!!

My question is how do you write 2×10^-4 in standard form

Answers

Answer:

[tex]2*10^{-4}[/tex]

Step-by-step explanation:

Answer:

0.0002

Step-by-step explanation:

solve -2y+6y-x-4=0 for y

Answers

Answer:

y = x/8 + 1/2

Step-by-step explanation:

Can I have brainliest?

Practice elimination by solving the following systems​᠎​​᠎​
-4-2y=-12
4+8y=-24

Answers

Answer:

y = -6

Step-by-step explanation:

-4-2y=-12

4+8y=-24

We can eliminate 4.

4+8y-4-2y = -12-24

Simplify.

6y = -36

Find y.

y = -36 ÷ 6

Simplify.

y = -6

Answer:

-4-2y=-12

4+8y=-24

by elimination method,

-4 - 2y = -12

4 + 8y = -24

---------------

0 + 6y = -36

6y = -36

y = -36/6

y = -6

hope it helps you!!

Solve for the missing distance 30m 39​

Answers

Answer:

Pls evaluate the question more

Step-by-step explanation:

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