The area of a square is 81 m ^ 2 what is the perimeter of the square? How do you know?

Answers

Answer 1

Answer:

Square root of 81 is 9

9 multiply with 4 is 36

Permiter is 36cm.

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Related Questions

Which number is divisible by 3?
A) 1,794
B) 1,912
C) 1,270
D) 473

Answers

Answer:

Step-by-step explanation:

should be A.

Find the value of K. The diagram is not to scale. Explain your answer.

Answers

Answer:

639 lo hago para conseguir puntos ;V

Step-by-step explanation:

What is the u equal to -4=u/2-8

Answers

Answer:12. V is not needed, and just substitute the letters with the numbers the correspond to.

Step-by-step explanation:

There are 36 carpenters in a crew. On a certain day, 29 were present. What percent showed up for work? (round to the nearest tenth)
(Please answer with explination)

Answers

Answer:

29/36*100 so ans will be 80.55555555555555555555555555555555555555

Step-by-step explanation:

what is the slope of (-4,-4) and (16,1)

Answers

Answer:

1/4

Step-by-step explanation:

-4 - 1 = -5

-4 - 16 = -20

-5/-20 = 1/4

1+8 pls help me nowwwwww

Answers

Your answer would be 9

Answer:

9

Step-by-step explanation:

The answer is 9. You can figure it out by counting up from 8!

The sum of two numbers is -14. If the smaller number is subtracted from the larger number, the result is 10. Find the number

Answers

Answer:

smaller number = - 12

larger number = -2

Step-by-step explanation:

x + y = - 14

x - y =    10                Add

2x = - 4                     Divide by 2

x = -4/2 = - 2

-2 + y = - 14               Substitute - 2 = x in x + y = - 14

y = - 14 + 2                Combine

y = - 12

I have no idea what to do, i need the answer!!!

Answers

Answer:

y = -x - 6

Step-by-step explanation:

From point A, to get to point C, you would need to go down 2 and right 2 which is -2/2 and -2/2 is the same thing as -x.

The y-intercept is -6 because the line goes thorough -6 in the y axis.

Hope this helps and pls do mark me brainliest if you can:)

Chad wants to order pizza for a party, and he can spend no more than $45.
He'll order 4 large pizzas and a $5 salad. How much can he spend on each
pizza if they are all the same price?
Choose two answers: one for the inequality that models this situation and
one for the correct answer.
A. Answer: $8 or less
B. Inequality: 5x + 4 < 45

C. Inequality: 4x + 5 < 45
D. Answer: $10 or less​

Answers

Answer:

Inequality: 4x+5<45, $10 or less

Step-by-step explanation:

Sallad costs $5. Therefore, the total cost of the pizzas is $40 ( $45-$5). Then since they are 4 pizzas, you find the quotient of ($40÷4)

I need help on this one

Answers

4. Find the area of each triangle. The formula is A=1/2(bh) so the area of the first triangle is 6, Bc 3•4 is 12, divided by 2 is 6.

The area of the second triangle is 24, because 6•8 is 48, divided by 2 is 24. And 24 is four times the value of 6, making the area scale factor 4.

Hope this helped!

What is the solution to this equation?
-6x+ 3 = 21
O A. x=-3
O B. x= 3
O C. x=-4
O D. x = 4

Answers

Answer:

A -3

Step-by-step explanation:

-6 times -3 = Postive 18. then 18+3=21

:). Hope that helped

A.x=-3 -6x+3=21 -6x+3-3=21-3

What is the equivalent ratios of 4:12

Answers

Answer:

8:24

Step-by-step explanation:

Just multiply 4*2 and 12*2

Hope it helps

Answer:

8:24, 24: 72, 16:48

Step-by-step explanation:

There's a lot just multiply them by the same number

When rounded to the nearest thousands an elephant weight is 5,000 pounds. What is the least amount the elephant could weigh? I need step by step instructions please.

Answers

Answer:

Step-by-step explanation:

It depends on what you have been told about rounding when a 5 is involved.

If you can round if the answer is 4500, then that would be your answer. If you have some complicated method of dealing with the 5 (involving odd or even numbers) the elephant's minimum weight will be different.

I would go with 4500.

4500


Step-by-step. Equation

The populations of Cities A and B are 1.6 x 10^5 and 1,070,000​, respectively. The population of City C is twice the population of City B. The population of City C is how many times the population of City​ A?

Answers

Answer:

13.375 times

Step-by-step explanation:

1,070,000 times 2=2,140,000. 2,140,000 divided by 160,000=13.375.

please help please please​

Answers

Answer:

146 feet

Step-by-step explanation:

The missing angle is 146 degrees. May I please have Brainiest?????

Explain to me in words how you would find the slope of this line and explain your answer

Answers

Answer:

5/3

Step-by-step explanation:

Looking at the two points, we count the rise (rise/run). It'd be 5 going up from the bottom point all the way to the same level as the top point. Then we count how many units over, which is 3. The slope of this would be 5/3. in slope form would be y=5/3x

Answer:

The slope is 6

Step-by-step explanation:

To find the slope you use the formula rise/run

The rise is the second y coordinate minus the first y coordinate

The run is the second x coordinate minus the first y coordinate

Step one:

Take any 2 points: I used (-1,2) and (-4,-3)

Step two:

Use the formula: rise/run

-4-2/-2-(-1)

-6/-1

6

I hope this helps :)

A compound proposition that is always ___________ is called a contradiction. A. True B. False

Answers

Answer:

A compound proposition that is always false is called a contradiction

Step-by-step explanation:

A compound proposition that is always false is called a contradiction. Option B is correct.

What is a contradiction?

Contradiction is defined as a situation or set of diametrically opposed ideas. Declaring publicly that you are an environmentalist but failing to remember to recycle is a contradiction.

A compound proposition that is always false is called a contradiction. A contradiction is a statement that contradicts itself, i.e., a statement that cannot be true at the same time. When two statements are combined and lead to a logically untenable conclusion, they are said to be contradictory. If a statement contradicts itself, it must be false. For example, the proposition "This statement is false" is a contradiction, as it leads to a logically untenable conclusion.

Thus, a compound proposition that is always false is called a contradiction. Option B is correct.

Learn more about contradiction here:
https://brainly.com/question/2404344
#SPJ2

solve equation for Y. 23=5x-2y

Answers

Answer:

y=5/2x-23/2 or y=2.5x-11.5

Step-by-step explanation:

First, add 2y to move it to the other side of the equation. This should give you 2y+23=5x. Now, subtract 23, giving you 2y=5x-23. Divide the whole equation by 2 so that y will be by itself. Written in fraction form, it would be: y=5/2x-23/2. Written in decimal form: y=2.5x-11.5.

Ava's cat is 3 pounds heavier than her puppy. if their combined weight is 27 pounds, how much does her cat weight

Answers

her cat weighs 16.5 pounds i think

Answer:

12

Step-by-step explanation:

(3+x)+x=27

2x+3=27

2x=24

x=12

At the restaurant, the cost of the meal before tax was
$40. The tax is 8.5%, and Sheri wants to leave at least
an 18% tip. Explain how to approximate the total cost of
the meal.

Answers

Answer:

This comes out to around 25 percent. Simply multiply 40 by 1/4 to get 10 dollars.

Step-by-step explanation:

Answer:

Step-by-step explanation:

40x0.085=3.4

40+3.4= 43.4

43.4x0.18=7.8

43.4+7.8=51.212$

Helen had Php7500 for shopping money. When she got home, she had Php132.75 in her pocket. How much did she spend for shopping?

Answers

Answer:

Step-by-step explanation:

Helen had Php7500 for shopping money

she had Php132.75 in her pocket

she spend= 7500.00-132.75

=7367.25answer

identify the variables in 3a+7b(c-8)

Answers

A b and c are your variables
Hope this helps

Can sumone please help me w this question? It math. 10 points. What is the value of r in the equation 3r − 6 = 18?

Answers

In this problem r=4 !!!
the answer is r=8

3(8)-6=16

-32-38r=84+-112r+-42

Answers

Answer:

Move r to left or right then divide the numbers

Please help & thank you.

Answers

Answer:

9

Step-by-step explanation:

2(5y°) = 90° ⇒ y = 9

what is h(5)=-5²+3×5

Answers

Answer:

the answer will be -10.

The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard deviation 1.4. The distribution of this particular variable is very right skewed.(a) Suppose we let (X-bar) be the mean number of accidents per week at the intersection during 9 randomly chosen weeks. What is the probability that (X-bar) is less than 2?(b) Now let X be the mean number of accidents per week at the intersection during a year (52 weeks). What is the probability that X is less than 2?

Answers

Answer:

The probability that sample mean is less than 2  is 0.1423.

Step-by-step explanation:

Let X denote the number of accidents per week at a hazardous intersection.

It is provided that the mean and standard deviation of X are, μ = 2.2 and σ = 1.4.

(a)

According to the Central Limit Theorem if an unknown population is selected with mean μ and standard deviation σ and appropriately huge random samples (n > 30) are selected from this population with replacement, then the distribution of the sample means will be approximately normally.  

Then, the mean of the sample means is given by,

[tex]\mu_{\bar x}=\mu[/tex]

And the standard deviation of the sample means is given by,

[tex]\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}[/tex]

As the sample size is not large enough, i.e. n = 9 < 30, the Central Limit Theorem cannot be applied to approximate the sampling distribution of the mean number of accidents per week at the intersection.

And since the distribution of X is not specified, the probability cannot be computed.

(b)

In this case, the sample size is large enough, i.e. n = 52 > 30, the Central Limit Theorem can be applied to approximate the sampling distribution of the mean number of accidents per week at the intersection.

Compute the probability that sample mean is less than 2 as follows:

[tex]P(\bar X<2)=P(\frac{\bar X-\mu_{\bar x}}{\sigma_{\bar x}}<\frac{2-2.2}{1.4/\sqrt{56}})\\\\=P(Z<-1.07)\\\\=0.14231\\\\\approx 0.1423[/tex]

Thus, the probability that sample mean is less than 2  is 0.1423.

What is the median 5,7,9,10,16,17,20

Answers

Answer:

10

Step-by-step explanation:

For an odd number of values, the median is the middle value when you write the values in ascending order.

5, 7, 9, 10, 16, 17, 20

The median is 10.

Subtract using the number line. - 1/3-(-1/2)​

Answers

Answer:

answer is 1/1

Step-by-step explanation:

Can y’all determine the measure of angle a

Answers

Answer:si

Step-by-step explanation:

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