formulae for perimeter of a rhombus​

Answers

Answer 1

Answer:

perimeter= 4a

a= sides


Related Questions

Find the surface area of a sphere with a radius of ²√² feet.

Answers

Answer:

Step-by-step explanation:

Remark

I'm going to take a guess that you mean

√2 for the radius.

Givens

r = √2

Area = 4 * pi * r^2

Solution

Area = 4 * 3.14 * (√2)^2

Area = 4 * 3.14 * 2

Area = 25.12 feet^2

To paint a house, a painting company charges a flat rate of $500 for supplies, plus $50 for each hour of labor.

Find the slope of the line, What is the meaning of the slope in this context?

Answers

The slope is 50 because they charge $50 for each hour of labor. The slope represents how long they have worked for and what it costs. Also the y intercept is 500, so the equation is y=50x+500

Hey, I don´t understand the graphing part of inequalities.

Answers

Answer:

See explaination

Step-by-step explanation:

While graphing inequalities, think of the inequality sign as an equal sign.

So, y=mx+b.

Say the inequality was y>3x+7, I would think fo the > as an equal sign.

So, in your head, "write" it like this: y=3x+7. Hope this helps.

An equation of a line perpendicular to the line represented by the equation y = -
1/2 x - 5 and passing through (6,4) is what?

Answers

Answer:

y= 1/2x+1

Step-by-step explanation:

Answer:

[tex]y=2x-8[/tex]

Step-by-step explanation:

First, remember that perpendicular lines have opposite and reciprocal slopes to the original line. That means for this line, your slope will be 2 (flip the fraction and change the sign). So we have:

[tex]y=2x+b[/tex]

Next, plug in the point that it passes through in order to find the y-intercept (b).

[tex]4=2(6)+b[/tex]

[tex]4=12+b[/tex]

[tex]b=-8[/tex]

So your equation will be:

[tex]y=2x-8[/tex]

Hope this helped!

Which expression is equivalent to 14x - 7 + 3(2x - 5)

Answers

Answer:

2(10x - 11)20x - 22

I hope this helps!

Answer:

are there multiple choices below?????

all I can tell you is that the simplified version of that equation is 20x-22

can someone help me? (m is a variable if you didnt know, thats what im trying to figure out)-1.5m = -2.55

Answers

Answer:

m = 1.7

Step-by-step explanation:

Divide each side by -1.5 to cancel out the -1.5 next to m. It should now look like this: m = 1.7

I hope this helps!

Which of the following equations is not a linear equation?

Answers

Answer:

its a

Step-by-step explanation:

Since x=5 is a vertical line, there is no y-intercept and the slope is undefined.

Answer:

A

Step-by-step explanation:

Holly checked her answer to a division problem by estimating the quotient. Which is the best estimation of the quotient?

23.564 divided by 5.97
4
5
6
7

Answers

Answer: 4

Try just dividing 23/5 and you’d get 4 something. But since 5.97 is close to 6 you can also mentally divide 23/6 and get 3something (it’d be really close to 4)



Answer:

A 4

Step-by-step explanation:

What could the equation of these two lines be? ​

Answers

Answer:

I think it's y=mx+b

Step-by-step explanation:

A group of ‘n' friends decided to rent a condominium for a one week vacation in Florida. They decided to share the weekly rent of ‘m' dollars equally. If due to an unanticipated reason two members of the group couldn't make the trip, and the rest of the friends decided not to charge the two who pulled out for the rent; what will be the additional amount each of the remaining friends must pay for renting the condominium?

Answers

Answer:

2m / n² - 2n

Step-by-step explanation:

Given that:

Number of friends = n

Weekly rent = $m

To share rent fee equally :

Each friend will pay : $m / n

If 2 of the friend couldn't make the trip:

Additional amount to be shared by the others = 2(m/n) = 2m/n

Hence additional fee per friend who eventually made the trip:

Additional amount to be shared / number of friend who eventually made the trip

= (2m/n) ÷ (n - 2)

= 2m / n * 1 / n - 2

= 2m / n(n-2)

= 2m / n² - 2n

can someone do 1,3,4,8 and 9 pls

Answers

Answer:

See attached

Step-by-step explanation:

Attached graphs for 1, 3, 4, 8 and 9

Intersections marked on the graph, feel free to chose any additional point

Please help! I will give brainliest!
(6^9·6^5)/ 6^15

Answers

Answer:

6^14/6^15 = 6^-1

Which of the following numbers is rational?

-9

0
all of the above

answer quick for brainllest

Answers

-9 is irrational number

Answer:

all of the above

Step-by-step explanation:

Find C. round to the nearest tenth:

Answers

Answer:

56.3 cm

Step-by-step explanation:

[tex] \dfrac{\sin 28^\circ}{27} = \dfrac{\sin 102^\circ}{c} [/tex]

[tex] c\sin 28^\circ = 27 \sin 102^\circ [/tex]

[tex] c = \dfrac{27 \sin 102^\circ}{\sin 28^\circ} [/tex]

[tex] c = 56.3 [/tex]

Answer: 56.3 cm

Answer:

56.3

Step-by-step explanation:

so the og person can get brainlyst

Find the error & explain why it is wrong:

Answers

Answer:

the error is 13√10

because 4√5 + 9√5 = (4 + 9).√5 = 13√5

Step-by-step explanation:

Which of the following equations represents the value of a savings account at the Owl Credit Union at Dundalk High School that has an initial
deposit of $250 and pays an annual interest rate of 2%?

Answers

Answer:

Step-by-step explanation:

Given

Initial deposit (Principal)= $250

Rate = 2%

Time = 1year (annual interest)

Required

Amount after 1 year

First we need to calculate interest

Interest = PRT/100

Interest = 250*2*1/100

Interest 2.5 * 2

Interest = $5.0

Next is to calculate amount;

Amount = Principal + Interest

Amount = $250 + $5

Amount = $255

Hence the value of a savings account at the Owl Credit Union at Dundalk High School that has an initial  deposit of $250 and pays an annual interest rate of 2% is $255.

Amount = P + I

Value of savings account is $255

Simple Interest rate;

Given that:

Initial deposit = $250

Annual interest rate = 2% = 0.02

Find:

Equations represents value of savings account

Computation:

Equations represents value of savings account = P + PRT

Equations represents value of savings account = 250 + (250)(0.02)(1)

Equations represents value of savings account = 250 + 5

Equations represents value of savings account = $255

Find out more information about 'Savings account'.

https://brainly.com/question/1446753?referrer=searchResults

When dividing each of the numbers $$3759$$ and $$4139$$ by some positive integer number, the remainder happened to be equal to $$16$$. What is the smallest possible value of the divisor?

Answers

Answer:

The smallest possible value of the divisor is 19

Step-by-step explanation:

The given numbers for division are;

3759 and 4139, the remainder = 16

Let x represent the number

Therefore, we have;

x > 16

x is a factor of 3759 - 16 = 3743, and x is also a factor of 4139 - 16 = 4123

The factors of 3743 obtained from an online resource are 1, 19, 197, 3759

The factors of 4123 obtained from an online resource are 1, 7, 19, 31, 133, 217, 589, 4123

The common factors of 3743 and 4123 are 1, 19

Given that x > 16, we have, x = 19

Therefore, the smallest possible value that will divide both 3759 and 4139 whereby the remainder is 16 = 19

The figure below is a square. If m2AEB = (5x + 15)°, what is the value of x?

Answers

Answer: x = 25

Step-by-step explanation: im pretty sure you would square 5 and get 25 then 15 and get 225, then you would divide those two numbers 225 and 25 and get 25

Write this statement as a conditional statement in the form “if p, then q.”

The measure of an angle is 90 degrees. So, the angle is a right angle.

Answers

Answer:

if the measure of an angle is 90°, then the angle is a right angle.

Step-by-step explanation:

p=the measure of an angle is 90°

q=the angle is a right angle

p is the hypothesis of the conditional statement

q is the conclusion of the conditional statement

A jar holds 72 worms and a cup holds 8 how many more does the jar have than the cup

Answers

Answer:

64

Step-by-step explanation:

Answer:

64

Step-by-step explanation:

72 - 8 = 64

sjsjskkskalw

Please help me please thank you so much in advance

Answers

Answer:

100°

Step-by-step explanation:

first you need to find the other angle. to do so do 180-135=45

so you know 2 angles now. 35° and 45°. Add these angles (you get 80°)

then 180-80=100

100° he is right you just need to subtract

Kenya picked 18 flowers from her garden. If 3− 5of flowers in her garden remain unpicked, how many flowers are still in her garden?

Answers

Answer:

4

Step-by-step explanation:

It is 4 because 4 is a even number in the scale in 3-4 and 18 is even.

Let me know if its wrong

What expression is equivalent to 7(7v)

Answers

Answer:

its the 4th one .  The one all the way to the bottom

Step-by-step explanation:

A

God bless!!

I hope it’s right

Plz hellppppp me u won’t regret it

Answers

Answer:

Area of circle = 200.96 units²

Step-by-step explanation:

The formula to find the area of a circle is: πr², where r is the radius (which is half of the diameter)

So the diameter is 16 and of 16 is 8, which is the radius.

Sub it into the formula of a circle and you would get the area of a circle.

3.14 x 8²

Use calculator

Area of circle = 200.96 units²

Rewrite this number in scientific notation: 494,000

Answers

Answer:4.94*10^5

Step-by-step explanation:

Step-by-step explanation:

Hello there! I think the answer is: 4.94 × 10^5

In scientific notation, you move the decimal point until you get a number between 1 and 10. Then you count the number of digits after.

My reasoning is below-

There are 3 zeros right of the number 494.

Therefore, I got the answer 4.94 x 10^5

Please help me with these 5 questions

Answers

Answer:

4. 85

5. 23.9

The rest are correct

3/20 of a number is what percentage

Answers

Answer:

The answer is 15%

Step-by-step explanation:

Hope that helps.

Franklin school is having a Popsicle party for its nine hundred fifty four students.The secretary there will some Popsicle left over to share with the teachers. Each student will get two Popsicle. Popsicle come in boxes that have one dozen Popsicle. There are twenty-five boxes in cartoon, how many boxes of Popsicle? Show your work.

Answers

Answer:

175 boxes

Step-by-step explanation:

There are a total of 954 students since each student will get two popsicles that would mean we need a total of 1,908 popsicles (954 * 2). Since each box contains 12 popsicles then we simply divide the total number of popsicles needed by the number of popsicles that fit in each box to find the total number of boxes.

1,908 / 12 = 159 boxes

Since there are 25 boxes per carton we divide 159 by 25

159 / 25 = 6.36

Now we see that we need at least 6.36 cartons of popsicles, but since we can't get 6.36 we would need to get 7 cartons which would bring a total of

7 * 25 = 175 boxes

Finally, we would end up with 175 boxes of popsicles which would be enough for all the students and have leftover for the teachers.

In the metric system, which prefix would you use for "1/100"?
A. Milli-
B. Hecto
C. Kilo-
D. Centi-

Answers

Answer:

Milli

Step-by-step explanation:

~A line at Busch Gardens moves 25 feet every 8 minutes. How long will it take to reach the ride entrance 300 feet away?

Answers

Answer:

Step-by-step explanation:

45

Step-by-step explanation:

3x+x=180

4x=180

x=45

Hope this helps hit the crown :D

Answer:

Step-by-step explanation:

25 feet for 8 mins

300/25=12

8*12=96

The line will move to 300 feet in 96 mins

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