Mathematics Middle School

SI l'aire d'un carré ABCD est 49 dm au carré quelle est la mesure de son côté AB justifier

Answers

Answer 1

Answer:

7 dm

Step-by-step explanation:

Pour un carré,

aire = (côté)²

(côté)² = 49 dm²

√[(côté)²] = √(49 dm²)

côté = √(49 dm²)

côté = 7 dm

Related Questions

Find the volume of the composite figure.

Write with the correct unit of measurement, such as 5 cm^2.

Answers

Answer:

?

Step-by-step explanation:

320cm^3 do the volume of the rectangle, l•w•h then do the volume of the triangular prism b•h/2. Then add it together. Remember volume is represented by cm cubed not squared.

A. Kim pays $90 for every block of 5 dance classes. What rate can you write to represent this block of classes

Answers

Answer:

more info pls

Step-by-step explanation:

The rate of the block of glasses is, $18.

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

Kim pays $90 for every block of 5 dance classes.

Here, Kim pays $90 for every block of 5 dance classes.

Hence, The rate of the block of glasses is,

⇒ $90 / 5

⇒ $18

Learn more about the divide visit:

https://brainly.com/question/28119824

#SPJ2

sorry this is the whole question

Answers

Step-by-step explanation:

8+t ,

where t is a whole number

Find the percent of change when 40 is increased to 83. If necessary, round your answer to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

Percent Increase and change formula:

big-small ÷ original

Insert:

83-40÷ 40

1.1 *rounded

110% increase

approximate the square root to the nearest integer
-√18

Answers

Answer:

-4

Step-by-step explanation:

4² is 16, 5² is 25, and 18 is closest to 16. The nearest integer would be 4, or rather -4 in this case.

Determine the length of the line segment. Round your answer to the nearest tenth of a unit

Answers

Like of segment being r, calculated in the picture is the length
4,2













Ssessseeekekemeer

of the 400 of the sixth graders at school, 60% want more library books. how many students want library books?

Answers

Answer:

240

Step-by-step explanation:

it’s simple math!

Since 60% of the 400 kids want more Library books, all you need to do is:

100% - 60% = 40%

find 40% of 400:

400 x 0.4 = 160

then subtract 160 from 400 to get 60%:

400 - 160 = 240

therefore 240 is your answer! :)

please mark brainlest!

have a nice day!*v*

Answer:240 6th graders want library books Step-by-step explanation:

6.5 x 3.1
AND pls show how you got it

Answers

multiplied as numbers without commas. Then move the comma as many times as you have after it
6.5*3.1=2015
We have to nr.after commas
So 20,15

Answer:

20.15

Step-by-step explanation:

( Eliminate the decimal point temporarily)

65

x 31

-----

65

1950  ...... (add the zero)

------

= 2015  ( add the decimal point back between the 2 and the 0)

-----------

= 20.15

Please help me my homework is due in 30 mins and I'm stuck on the last question. In this question, I'm working with a recipe where I have to make a recipe for 12 a recipe for 30. "Notice that the original recipe calls for [tex]\frac{1}{4}[/tex] cup of water. If you put [tex]\frac{3}{8}[/tex] cup of water, by how much have you multiplied the original recipe? How many people will your new recipe serve?".

Answers

Answer:

2.5 times, 30 people

Step-by-step explanation:

The recipe will be multiplied 2.5 times (3/8 ÷ 1/4). Therefore, it will serve 30 people (12 * 2.5)

Answer:

30

Step-by-step explanation:

Giving Brainliest if you help me out! Please answer correctly

Answers

Answer:D

Step-by-step explanation:

Answer:

C.

Step-by-step explanation:

Rate: 12/3= 4

Slope of graph A: 20

Slope of graph B: 10

Slope of graph C: 4

Slope of graph D: 20/3

The circle below has an area of 314 square centimeters, and the square inside the circle has a side length of 2 centimeters.

What is the probability that a point chosen at random is in the blue region?

A. 2/157
B. 2/155
C. 155/159
D. 155/157

Answers

Answer:

D  

Step-by-step explanation:

Did with a teacher!

Answer:

D 155/157

Step-by-step explanation:

HELLPPP meeeeeee e PLEASEEEEE E

Answers

Answer:

306.75

Step-by-step explanation:

Just subtract 372 from 65 1/4

Answer:

306.75

Step-by-step explanation:

Find −3(−1.25). You may find using a number line to be helpful. −3(−1.25) =

Answers

Answer:3.75

Step-by-step explanation:

3x1=3, 3x0.25=0.75 3+0.75=3.75, it’s positive because you’re multiplying 2 negatives

Answer:

3.75 is the answer I think

Step-by-step explanation:

Do you mean solve it? If so then thats my answer I simplified it.

Help Please! First one to answer and I’ll try to mark you Brainliest!

Answers

Answer:

I think it is d

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

(0,300)

(1,400)

(2,500)

(3,600)

(4,700)

(5,800)

(6,900)

(7,1000)

(8,1100)

(9,1200)

(10,1300)

(11,1400)

(12,1500)

help help help help quick

Answers

Answer:

C, 2 1/2

Step-by-step explanation:

First, you’d cross out the 3 and the 6, simplifying the problem to 1*5/2, then you’d multiply across. This should give you 5/2, which simplifies to 2 1/2

3*5/6 = 5/2 = 2 1/2

I hope this helps!

Answer:

A

Step-by-step explanation:

multiply 3 with 5 and the dominator will say the same

Help!! Me!! Please!!

Answers

Answer:

2-4/2R2=X.X=2

Step-by-step explanation:

mark brainliest plz

deeper than 32.

wrong or right?

Which two expressions represent the perimeter of this rectangle?
(Choose 2)

Answers

it's a blank screen. try retaking the picture and asking the question again.
I can not see the picture try retakaking it with a phone rather than a screen shot ?

Find the sum.

75+(−30)

Answers

Answer:

[tex]75 + ( - 30) \\ = > 75 - 30 \\ = > 45[/tex]

Hope helpful <3

Graph the second line. What is the solution to the system? A (0, 2.5) B (4,6) C (5,5) D (8,2)

(Sorry I couldn't put the graph)​

Answers

You need a picture of a graph so we can help.

ASAP please help me!!

Answers

Answer:

1st: 432x^(17)

2nd: -32y^8

Step-by-step explanation:

hope this helped good luck!

Answer:

3.) (4×^4)^2×(3×^3)^3 = = 0

How do you solve fractions step by step?

Step-by-step explanation:

1. Exponentiation: 4 ^ 4 = 256

2. Exponentiation: 3 ^ 3 = 27

And sorry number 3 lng kaya ko.

hope it help to you

don't add links please.

Answers

It’s B since that is what a linear function looks like
The answer is b, the function is linear

**Help with slope test assignment**

Select the table that represents a linear function. (Graph them if necessary.)

(Question provided below)

Answers

Answer: C

Step-by-step explanation:

I did the math and it should be d

Hellppp MEEEEEEE pleaseeeeee

Answers

Answer: 31 in.

Step-by-step explanation:

Because if you split 62 in half it’ll equal 31.

31+31=62

Answer:

29.5 inches

Step-by-step explanation:

Eva is 1.5 inches shorter than half of Maria's height, so to determine Eva's height, we would subtract 1.5 from 31, half of Maria's height. Our difference is 29.5. Eva is 29.5 inches tall.

(this was edited because I'm apparently blind)

A _____ is a ratio comparing quantities measured in different units.

• A unit rate is a rate that compares a quantity to exactly one ______ of another quantity.

• Unit rates can be used to make rate _____ consisting of equivalent ratios (fractions).

• A _____ table can be used to solve a problem. Find a missing value in a ratio table by:

• using a pattern of ____ each time.

• multiplying.

• writing an ____ ratio.

Answers

Answer:

1. Rate

2. unit

3. not sure what this one is sadly

4. ratio

5. dividing

6. equavilent

1. Rate 2. unit 3. not sure what this one is sadly 4. ratio 5. dividing 6. equavilent

DUE AT 8 MT!!! HELP ASAP!!!
Define a variable, set up an equation, then solve.
Lynn put 3 7/8 gallons of gas in her gas tank. If there are now 18 1/6 gallons in the tank, how many gallons did she start with?
x - gallons she started with

Answers

Answer:

14.3 gallons      = 4 + 7.25/25  or 14.29 gallons.

Explanation:

18 1/6 gallons - 3 7/8 = 14.29

18 - 3 = 15

1/6 - 7/8 = 15 - 0.70833333333 = 14.2916666667

You need to be careful here if you use basic subtraction, simply as two minus would change to addition.

First change the mixed number of gallons into improper fractions.

3 7/8 ——> 31/8
18 1/6 ——> 109/6

Then find the LCM ( Lowest Common Multiple) in this case of the denominators it would be 24.

Convert both fractions as a factor of 24;

31/8 ——> 93/24
109/6 ——> 436/24

Then you want to take away the amount she was left with from how many she had added;

436 93 343
——— minus ——— = ———
24 24 24


As a mixed number this could be written

7
as 14 —-
24

Hope this helped!! Much love and good luck <33 :)

I have to find whether these are parallel, perpendicular, or neither. please explain how to put these equations into slop int form:)

3x + 5y + 10
5x - 3y = -6

Answers

Answer:

3x + 5y + 10= 3

5x - 3y = -6

Step-by-step explanation:

1. m=-3/5

2. Simplifying

5x + -3y = 6

Solving

5x + -3y = 6

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3y' to each side of the equation.

5x + -3y + 3y = 6 + 3y

Combine like terms: -3y + 3y = 0

5x + 0 = 6 + 3y

5x = 6 + 3y

Divide each side by '5'.

x = 1.2 + 0.6y

Simplifying

x = 1.2 + 0.6y

Hope this helps

X=1.2+0.6y this is the answer

Please answer the picture

Answers

Answer:

5(4x−3)

Step-by-step explanation:

20x−15

= 5(4x−3)

Answer:

20x−15

= 5(4x−3)

Step-by-step explanation:

Milo will cut a 136-foot-long roll of wire into 16 equal lengths for fencing. He finds that 136÷16 is 8 r8. How long will each length of wire measure?

Answers

Answer:

8.5

Step-by-step explanation:

Answer:

8.5

Step-by-step explanation:

136÷16 = 8.5

plz plzz plzz mark as brainliest

A parabola with no real zeros, a negative leading coefficient, and an odd y-intercept.
pls help!

Answers

Answer:

Step-by-step explanation:

A parabolic graph with no real zeros never touches or crosses the x-axis.  

If the leading coefficient is negative, that tells us that the parabola opens down (and, in this case, that the entire graph is below the x-axis, because there are no real zeros.

If the y-intercept is odd, then the constant term, c, in ax^2 + bx + c, must be a negative, odd integer.

Suppose we say that the vertex of a particular parabola that is described by the above is (-2, -1) and that the y-intercept is -3.  (Note:  this is strictly an example.)  Then the vertex equation of this parabola is obtained from the general vertex equation of a parabola,

y = a(x - h)^2 + k.  Here h = -2 and k = -1, and so the particular parabola is

y = -a(x + 2)^2 - 1, where a is a constant and -a is negative.

In general form, this would be y = -a(x^2 + 4x + 4) - 1, or

                                                   y = -ax^2 - 4ax - 4a -1

and the constant terem (-4a -1) must be an odd negative integer

This is only one of an infinite number of possible equations for the parabola described above.

Answer:

A parabolic graph with no real zeros never touches or crosses the x-axis.  

If the leading coefficient is negative, that tells us that the parabola opens down (and, in this case, that the entire graph is below the x-axis, because there are no real zeros.

If the y-intercept is odd, then the constant term, c, in ax^2 + bx + c, must be a negative, odd integer.

Suppose we say that the vertex of a particular parabola that is described by the above is (-2, -1) and that the y-intercept is -3.  (Note:  this is strictly an example.)  Then the vertex equation of this parabola is obtained from the general vertex equation of a parabola,

y = a(x - h)^2 + k.  Here h = -2 and k = -1, and so the particular parabola is

y = -a(x + 2)^2 - 1, where a is a constant and -a is negative.

In general form, this would be y = -a(x^2 + 4x + 4) - 1, or

                                                  y = -ax^2 - 4ax - 4a -1

and the constant terem (-4a -1) must be an odd negative integer

This is only one of an infinite number of possible equations for the parabola described above.

Can some1 pls help me with this:

Answers

Answer:

your answer is none of these

Step-by-step explanation:

refer the attachment

gamsahamnida

Which of the following fractions represent 87.5%

d) None of this

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