Calculer coefficient de réduction grâce a l'aire

Answers

Answer 1

Answer:

Comme on a AI = 3 cm et AB = 5 cm, le coefficient de réduction AI / AB est égal à trois cinquièmes, c'est à dire 0,6 . L'aire de AIJ est égale à l'aire de ABC multipliée par k2 .

Step-by-step explanation:


Related Questions

Please answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!

Answers

Answer:

30

Step-by-step explanation:

3 multiply 5 =15

so:

6 multiply 5=30

Pls help I cant do this

Answers

Answer:

Here you go!

Step-by-step explanation:

Hope this helped!

Answer: a=7

d=2

Step-by-step explanation:

A 93 L batch of Ropivacaine is being made. The specific gravity is 1.01 g/mL. 196.42 g of Ropivacaine and 799.8g of sodium chloride are added. What is the weight of the water to be added to QS the solution?

Answers

Answer:

92.93378 kg

Step-by-step explanation:

Given that:

Volume of Batch = 93 L

= 93 × 1000     (since 1 L = 1000 mL)

= 93000 mL  

Specific gravity = [tex]\dfrac{density \ of \ solution}{density \ of \ water}[/tex]

where;

density of water = 1 g/ml

specific gravity = 1.01 g/mL

Density of solution = (1.01 × 1) g/mL

Density of solution = 1.01 g/mL

[tex]Density \ of \ solution = \dfrac{mass \ of \ batch }{volume \ of \ batch}[/tex]

mass of batch = 1..01 g/mL × 93000 mL

mass of batch = 93930 g

Now, the mass of additional water = mass of (batch - Ropivaciance - sodium chloride)

= 93930 g - 196.42 g - 799.8 g

= 92933.78  g

Since 1kg = 1000 g

The weight of the water to be added to the QS solution is:

[tex]=\dfrac{92933.78}{1000}[/tex]

= 92.93378 kg

this is algebra ,
what is the minimum unit cost?

Answers

Answer:

search it up

Step-by-step explanation:

Using mental math, the approximate tip to leave for a bill of $81.79, if you tip 15% would be _____.. a. $8.20 b. $10.30 c. $12.30 d. $16.40 Please select the best answer from the choices provided A B C D

Answers

Step-by-step explanation:

The approximate tip is - 12.30$

Because bill is 81.79$

and tip - 15%

therefore bill amount divided by 15/100

==> 81.79* 15% is 12.30$

Find the equation of the line
Use exact numbers
Y=blankx+blank

Answers

Step-by-step explanation:

The equation of the line is y = -1.5x + 3.

Jason used 0.5 cup of kernels to make 16 cups of popcorn how many cups of popcorn would he make if he used 0.75 cup of kernels.
A. 32
B. 28
C. 24
D. 20

PLEASE HELP ME IM DAILING MATH​

Answers

Answer:

Option C: 24 is the correct answer.

Step-by-step explanation:

Given that:

Jason used 0.5 cup of kernels to make 16 cups of popcorn

Ratio of cup of kernel to cups of popcorn = 0.5 : 16

Let,

x be the cups of popcorn made from 0.75 cups of kernel

Ratio of cups of kernel to cups of popcorn = 0.75 : x

This is a direct proportion as the cups of kernel is increasing.

0.5 : 16 :: 0.75 : x

Product of mean = Product of extreme

16*0.75 = 0.5x

12=0.5x

0.5x=12

Dividing both sides by 0.5

[tex]\frac{0.5x}{0.5}=\frac{12}{0.5}\\x=24[/tex]

Jason can make 24 cups of popcorn from 0.75 cups of kernel.

Hence,

Option C: 24 is the correct answer.

i don’t know what to do, please help!!

Answers

Answer:

b 7

Step-by-step explanation:

open the bracket and the power gets cancelled because it will be 5/5

then answer will be 7 to the power 1 which is equals to 7

y=–6x+2
–12x – 2y=–4
How many solutions does this linear system have?

O one solution: (0, 0)
O one solution: (1, –4)
O no solution
O infinite number of solutions

Answers

Answer:

3 no solution

Step-by-step explanation:

I'm a smart man I would know trust me

I have my masters degree

Let $r$ and $s$ be the roots of $3x^2 + 4x + 12 = 0.$ Find $r^2 + s^2.$

Answers

Use a similar strategy as in your other question, [19925664].

3x² + 4x + 12 = 3 (x - r ) (x - s)

3x² + 4x + 12 = 3 (x² - (r + s) x + rs)

3x² + 4x + 12 = 3x² - 3 (r + s) x + 3rs

so that

r + s = -4/3

rs = 12/3 = 4

Recall that

(r + s)² = r² + 2rs + s²

so that

r² + s² = -2rs = -2(4) = -8

Which statement best explains why citizens are required to pay taxes to the government? (3 points)
A) If citizens do not pay taxes, they will lose their legal citizenship.
B) Citizens who pay taxes receive special benefits, such as free food.
C) Taxes help pay for the services government provides, such as education.
D) Taxes are paid back to the people evenly, helping spread money around.

Answers

Answer:

C.

Step-by-step explanation:

A. Is false because citizens do not lose their citizenship if they fail to pay taxes.

B. Is false because not every tax paying citizen receives government assistance gets benifits like food stamps.

D. Is false because taxes don't go directly back to the people as cash payouts.

Answer:

The real answer is c.

Step-by-step explanation:

Taxes that we pay goes tords goverment things such as school. Smiles have a good day!

An airplane is flying from nyc to la. The distance it travels in miles,d, is related to the to the time in seconds, t, by the equation d=0.15t

Answers

Answer:

It will cover 4.5 miles in 30 seconds.

Step-by-step explanation:

An airplane is flying from nyc to la.

The distance it travels in miles,d, is related to the to the time in seconds, t, by the equation :

d=0.15t ...(1)

Let us assume we need to find the distance at t = 30 s.

Put t = 30 s in equation (1).

d=0.15 × 30

d = 4.5 miles

Hence, it will cover 4.5 miles in 30 seconds.

Use the standard algorithm to find the product of 582 and 46.

Answers

Answer:

someone plz help this person

13 points!!

The table below shows the heights of five different people.
table shown below

Jackson has a height of 55 inches. Which is true if Jackson is added to the data set?

Answers

Answer:

The Mean Decreases.

Step-by-step explanation:

Answer:

the answer is Cindy and i dont understand what your trying to say but if your saying witch one is closer to  Jackson then yeah Cindy

Carlos has 38 apples. He puts 8 apples into each bag if he fills as many bags as possible, how many apples are left

Answers

Answer:

6

Step-by-step explanation:

What you need to do is 38 ÷ 8. The answer would be 4 with a remainder of 6, so there are six apples left

what is the sum of all interior angles of a parallelogram

Answers

The sum of all interior angles of a quadrilateral is always 360
A parallelogram is a quadrilateral, so the answer is 360 degree so

Which phrases could n + 10 represent? Check all that apply.
the sum of a number and ten
the difference between a number and ten
a number plus ten
the difference between ten and a number
ten more than a number

Answers

The sum of a number and ten,

A number plus ten,

Ten more than a number.

Answer:

The sum of a number and ten

A number plus ten

Ten more than a number

Step-by-step explanation:

edg

a store sells comic books. during the sale, the store reduces the price of each comic book by $1.25. claire spends $13.76 on 4 comic books at the sale price. what was the price of 1 comic book before the sale? ​

Answers

Answer:

4.69

Step-by-step explanation:

13.76/4 +1.25

Heyyyyy ah ha ha ‍ help I’m begging please someone god bless

Answers

Answer:

Step-by-step explanation:

Domain of a function is a set of x-values (input values) for which the function is defined.

Range of a function is a set of y-values (output values) for the given set of input values.

7). Domain → (-∞, ∞)

    Range → (-∞, ∞)

8). Domain → (-∞, ∞)

    Range → [-2, ∞)

9). Domain → [-2, 2]

    Range → [-3, 3]

10). Domain → (-∞, ∞)

    Range → [-1, 1]

Determine if the result of each product is a positive or negative integer

Answers

1. negative
2. positive
3. positive
4. negative
5. positive

Answer:

1. -13x9= -117 Negative

2. 4x14= 65 Positive

3. -6x(-31)= 186 Positive

4. -18x(54)= 4374 Positive

5. 55x7= 385 Positive

Step-by-step explanation:

Comparing Linear Functions Written in Different Ways Compare the linear functions expressed below by data in a table and by an equation. A 2-column table with 4 rows. Column 1 is labeled x with entries negative 6, negative four-thirds, 1, 4. Column 2 is labeled y with entries negative StartFraction 9 Over 2 EndFraction, negative 1, three-fourths, 3. y = three-fourths x. Which of the following statements are true? Select all that apply. If the equation were graphed, it would be a horizontal line. Both functions have the same slope. The origin is the y-intercept for the function expressed in the table. The linear equation does not have a y-intercept. The table and the graph express an equivalent function.

Answers

Answer:

#2

Both functions have the same slope.

#3

The origin is the y-intercept for the function expressed in the table.

#5

The table and the graph express an equivalent function.

Answer:

B, C, E

Step-by-step explanation:

I got it right on edge

Identify the domain of the function shown in the graph.
A. -5<x<5
B. 0<x<5
C. x is all real numbers.
D. x > 0​

Answers

Answer:

The answer is A choice.

Explanation:

By looking at the graph, we notice that at the left side, the domain/x-value stops at -5 and 5.

Thus, the domain is at the left end side to the right end side.

The domain stops at -5 on the left side and 5 on the right side. Thus the answer is

-5 < x < 5.

The A choice.

Understanding

The domain of a function is basically all the values where x is defined, and by defined, it means it has a y value corresponding to it. In this graph, x is defined from -5 to 5. If you look outside this range of numbers (from -5 to 5 on the x-axis) you will not find any y values for them. We can easily say the solution is A.

Solution:

[A] [tex]-5<x<5[/tex]

Note: From what I see from the picture -5 and 5 are included in the domain, either the question is incorrectly written, or the picture isn't clear enough. If so, the answer should be [tex]-5\leq x\leq 5[/tex].

Johan's water bottle holds 4.2L of water. Johan has drank 51% of water in the bottle. How much, in litres, has he drunk?

Answers

Answer : 2.142L

Step-by-step explanation:

51/100 × 4.2

=51/100 × 42/10

= 2142/1000

= 2.142L

Answer:

2.142 L

Step-by-step explanation:

Total Volume = 4.2L = 4200 ml

Amount Drunk = 51%

How much did Johan drink = 51% of 4200 ml

[tex] \frac{51}{100} \times 4200 \\ = \frac{51 \times 42}{1} \\ = 2142[/tex]

2142 ml = 2.142 L

There are 5 red markers, 2 orange markers, 3 yellow markers, and 5 green markers in a desk drawer.What is the probability of choosing a red marker?

Answers

1/3 I’m not positive but I think

Answer:

the probability is 5/12  or 0.416 or 41%

Step-by-step explanation:

Hope I helped!

Enter the correct answer in the box.
Consider this rational equation.
Use the least common denominator to simplify the rational equation into a standard form quadratic equation.
Replace the values of b and c to create the equation.

Answers

Answer:

[tex]x^2-10x+8=0[/tex]

Step-by-step explanation:

[tex]\frac{1}{x} +\frac{1}{x-2}=\frac{1}{4} \\\\\frac{x-2+x}{x(x-2)} = \frac{1}{4} \\\\\frac{2x-2}{x(x-2)}=\frac{1}{4} \\\\4(2x-2)=x(x-2)\\8x-8=x^2-2x\\0=x^2-2x-8x+8\\0=x^2-10x+8\\x^2-10x+8=0\\[/tex]

Using the least common denominator in simplifying the rational equation, the result of in standard form is: [tex]\mathbf{x^2 -10x + 8 = 0}[/tex]

What is the Least Common Denominator (LCD)?Least common denominator is the smallest common multiple of the denominators of two or more fractions.It is useful when simplifying, adding, subtracting or comparing fractions.

Given:

[tex]\frac{1}{x} + \frac{1}{x - 2} = \frac{1}{4}[/tex]

The least common denominator of the two fractions on the left side of the equation is x(x - 2).

Thus:

[tex]\frac{1(x - 2) + x(1)}{x(x - 2)} = \frac{1}{4}\\\\\frac{x - 2 + x}{x(x - 2)} = \frac{1}{4}\\\\\frac{2x - 2}{x^2 - 2x)} = \frac{1}{4}[/tex]

Cross multiply

[tex]4(2x + 2) = 1(x^2 - 2x)\\\\8x + 8 = x^2 - 2x\\\\[/tex]

Rewrite in standard form

[tex]0 = x^2 - 2x - 8x + 8\\\\0 = x^2 -10x + 8\\\\\mathbf{x^2 -10x + 8 = 0}[/tex]

Learn more about least common denominator on:

https://brainly.com/question/542317

If anyone can please answer and explain will mark the brainliest answer

Answers

Answer:

a) [tex]y=\frac{1}{3} \sqrt{x+4}[/tex]

b) [tex]y=4 \sqrt{x}+3[/tex]

c) [tex]y=\sqrt{2x}-6[/tex]

Step-by-step explanation:

Part a is the green curve

Part b is the purple curve

Part c is the red curve

The black curve is the equation of the graph [tex]y=\sqrt{x}[/tex]

just for reference

Which are the intercepts of the equation y+2=4(x+1) ?

Answers

Answer:

*3rd option*

y intercept (0, 2)

x intercept (-1/2 , 0)

Step-by-step explanation:

First, rearrange the equation so y is on one side, the rest of the terms on the other.

y+2 = 4x + 4

y = 4x+2

The y intercept is 2 because x=0, y = 2

rearrange where x is on one side

4x = -y + 2

x = -1/4y - 1/2

The x intercept is -1/2 because when y=0, x=-1/2

please give thanks :)

and brainliest :)

hope this helps

In a two digit number , the digits at tens place is 1 more than the digit at unit place .If the product of the digits is 20,find the numbers.​

Answers

The number I believe is 54

Help! Thank youuuuu!!!!!

Answers

Answer:

scamming outta points

Step-by-step explanation:

At the beginning of the week, a stock was $82.73 per share.
On Monday, the stock gained $0.19 per share.

-On Tuesday, it gained $0.07 per share.

-On Wednesday, the stock lost $0.13 per share.

-On Thursday, it lost $0.25 per share.

On Friday morning, what was the price of the stock per share?

Answers

$82.87. You just add the first three to the starting price and subtract the last one
Other Questions
The only major country in the world to use Fahrenheit is __________.A. BrazilB. EnglandC. FranceD. the United States Please select the best answer from the choices providedABCD How do you do this homework? How has imperialism affected the world today? Which of the following is a definition of motion? Write the following ratio using two other notations. 6:7 Use only the numbers above (not any others). Notation one: Notation two: . Xwhat is the answer? Let bring up a topic and discuss on the topic someone should bring one Air masses always move in which direction? Is 413.25 a whole number In CDE, m C = ( x 4 ) mC=(x4) , m D = ( 11 x 11 ) mD=(11x11) , and m E = ( x + 13 ) mE=(x+13) . Find m C . mC. Which two statements are examples of themes?self-identityconflicting situationsThe storys characters struggle against the power of nature.Kindness can bring great rewards.Giving in does not mean giving up. A ball bearing has a diameter of 10 millimeters. what is the volume of the ball bearing rounded to the nearest tenth of a cubic meter.Use 3.14 as an approximation for You bike 11.2 miles in 1.4 hours at a steady rate what equation represents to proportional relationship between the X ours your bike in the distance y in miles that you travel 5.Find the slope.7x- y=-4a) -1/7b) 1/7c) -7I d) 7 A minor league baseball team has a members club. It costs $30 to join and $3 per ticket. Non-members pay $6 per ticket. How many tickets will it take for the cost to be the same? What is the distance between point A and point B? How did the fighting in Iwo Jima and Okinawa affect the Alies' Pacific strategy?OA.OB.OC.OD.by causing the Soviet Union to send troops to the Pacificby causing U.S. admirals to abandon the island-hopping strategy for air assaultsby influencing President Truman's decision to drop the atomic bomb on Japanby encouraging the Allies and Japan to agree to a stalemate in the Pacific Hi!!! People have been giving out points all day and i thought i would have a turn!! (30 points) Ill give the crown to whoever is nicest in their answer!!! Happy holidays :) calculate the packing efficiency of simple cubic unit cell. the chemical reaction in which glucose is converted to ATP in the mitochondria Find the equation of the tangent line to the function f(x) = 3x3 - x + 2 at a =0