Bonjour j'ai besoin d'aide pour cet exercices de maths

It says that there was an error with my answer, but I don't know what, so I screenshotted what I typed and attached them as 4 images below:

The measurement of the circumference of a circle is 21.3 ft.

The circumference is the perimeter of a circle. That is, the circumference would be the arc length of the circle, as if it were opened up and straightened out to a line segment.

Here, given area of circle = 36 ft²

Area of Circle = πr²

           36 = 3.14 X r²

           r² = 11.46

          r = 3.38 ft.

Circumference of Circle = 2πr

                                       = 2 X 3.14 X 3.38

                                      = 21.25 ft. ≈ 21.3 feet

Thus, the measurement of the circumference of a circle is 21.3 ft.

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Answer:

c

Step-by-step explanation:

am not sure but I think its C am not shure

Answer:

9 divided by thirteen.

Step-by-step explanation:

we know that the fraction symbol that appears between the numerator and the denominator (the ___ line) represents division. So, we could say that 9 over 13 is 9 divided by thirteen.

Answer:

318ft³

Step-by-step explanation:

The specific formula conversion for an APPROXIMATE answer would be to multiply the m^3 by 35.315 to get ft^3.

Answer:

6m

Step-by-step explanation:

Set up a proportion:

x/1.5=10/2.5

Cross multiply:

15/2.5=2.5x/2.5

x=6

The palm tree is 6m tall.

Hope this helps!

Answer:

130°

Step-by-step explanation:

180-50=130°

Answer:

3^12

Step-by-step explanation:

Answer: 2.6 (rounded answer)

Step-by-step explanation: To solve for the side BC we can find the tangent (TAN) of 41 degrees. Since the tangent of an angle is equal to the opposite side over adjacent, we can set up an equation that looks like this, assigning side BC to be x:

tan(41)= x/16

0.1606567=x/16 <---- Use calculator to find tan(41)

0.1606567(16)=x/16(16) <---- Multiply each side by 16

2.5705071789=x

Answer:

3.85 Hours

Step-by-step explanation:

If the bus is 30km away, it has driven 270km. If it drives at 70km per hour, then your answer will be shown with 270/70, which is 3.85

Answer:

$490

Step-by-step explanation:

Answer:

no it does not

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

Slope is Rise over Run (y / x).

For 2 points, you would take the difference of y-coordinates and divide by the difference of x-coordinates.

(Y1 - Y2) / (X1 - X2)

Since both y-coordinates are the same (ten minus ten), your slope is zero (zero divided by anything is zero).

Answer:

12.63

Step-by-step explanation:

Answer:

The sorted inputs in order from least to greatest is:

3/21 < 3/15 < 3/11 < 3/8 < 3/7

Step-by-step explanation:

Using the given inputs:

3/15 3/7 3/21 3/8 3/11

As the least common denominator (LCD) is: 9240

Rewriting as equivalent fractions with the LCD:

3/15                  3/7                       3/21                 3/8                     3/11

1848/9240      3960/9240       1320/9240        3465/9240        2520/9240

Sorting this table by the numerators of the equivalent fractions in order from least to greatest:

    3/21                3/15                 3/11                     3/8                  3/7

1320/9240  < 1848/9240 < 2520/9240  < 3465/9240   <   3960/9240

Therefore, the sorted inputs in order from least to greatest is:

3/21 < 3/15 < 3/11 < 3/8 < 3/7

Answer:

1. 2.19g + 0.59b + 1.49p

2. 6.57 + 1.77 + 2.98 = 11.32

Answer:

Part A.)   2.19g + 0.59b + 1.49p

Part B.)   11.32

Step-by-step explanation:

Part A.)  

basically they give you the price for each item in the upper description. Just use g,b,p in terms that they gave you

Part B.)

plug in the amount of fruit per pound for each matching variable

2.19(3) + 0.59(3) + 1.49(2) = 11.32

Answer:

1.

1/16 or .0625

2.

8/15 or .53

3.

1/4 or .25

Step-by-step explanation:

hope it helps bro

Answer:

2x+4

3x+15

4x+4

4x-8

Step-by-step explanation:

...............

Answer:

6710.46x

Step-by-step explanation:

The solution is : the value of x is x = 9.75.

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

You need to convert from mixed number to decimal number. To do this you can follow the steps shown below:

Step 1: You must divide the numerator of the fraction by the denominator of the fraction.

Step 2: Now you must add the quotient obtained to the Whole number part.

So, you get:

3 + 1/4

=3 + 0.25

= 3.25

Then, the scale image that maps "Figure a" onto "Figure b" is:

1: 3.25

Finally, in order to find the value of "x", you need to multiply the given length of the corresponding side of "Figure a" by .

Therefore, you get that the result is:

x = 3 * 3.25

or, x = 9.75

Hence, The solution is : the value of x is x = 9.75.

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Answer: 155

Step-by-step explanation:

31 - it is 20%

20% = 0.2

Find, how many total free throws did he attempt if he missed:

31 : 0.2 = 155

Answer:

 -4

Step-by-step explanation:

From the graph:

When n=2 , a^n =9

When n=4, a^n =1

The average rate of change between n=2 and n=4 is :

[tex]Rate= \frac{{{a_{2} -a_{4} } } }{2-4} \\=\frac{9-1}{-2} \\=-4\\[/tex]

The average rate of change is  -4

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Answer:

A. 34

Step-by-step explanation:

Angle = 34°

The information will form a right angle triangle. Refer to the picture below for the diagram.

Using trigonometric ratio,

tan Ф = opposite / adjacent

tan Ф = 100 / 150

tan Ф = 0.66666666666

Ф = tan⁻¹ 0.66666666666

Ф = 33.6900672615

Ф ≈ 34°

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