Mathematics High School

ABC est un triangle rectangle en B.
On donne : AB = 7:BC = a et AC = a +5.
Calcule a

Answers

Answer 1

Answer:

Step-by-step explanation:

salut :

en utilisant le theorem de Pythagore on obtient :

AC²= AB² + BC²

(a+5)² = 7²+a²

a²+10a+25 = 49+a²

10a+25 =49

10a =24

donc : a = 24/10 = 12/5 = 2.4 unit

Related Questions

PLSSSSS HELPPPPPPPPP PLSSS

Which of the following is TRUE regarding Darwin's theory of evolution?


A. Species change over long periods of time, giving rise to new species.

B. Darwin’s views are no longer accepted by the scientific community.

C. Characteristics acquired during an individual’s life are always passed on to future generations.

D. Pure chance determines which species evolve.

Answers

Answer:

Pretty sure it is A

Step-by-step explanation:

Which statement is not true about the pattern shown?
2 4 8 16
3: 612' 24'

Answers

Answer:

Each fraction is greater than the previous fraction.

Explanation:

The bigger the denominator, the smaller the fraction.

Answer:

Each fraction is greater than the previous.

Step-by-step explanation:

Each fraction is equivalent to 2/3  and the next is 32/48 so the first choice is not true.

Can someone help me with this and explain it?

Answers

Answer:

4 pizzas

Step-by-step explanation:

Equation:

12x + 7 = 55

12x = 55 - 7

12x = 48

x = 4

An expression is shown.
(4 x 10-5+ (2x 10-5
(3 x 107)
Which expression is equivalent?
A 2x 10-17
® 2 x 10-12
© 2x 10-2
2x 1012

Answers

Answer:

4575t8768756970

Step-by-step explanation:

46879x468790x587690x587690x758690x6587x90=2314567890-

Using the graph as your guide, complete the following statement.
The discriminant of the function is

Answers

Answer:

Positive

Step-by-step explanation:

Both of the roots are real numbers so that means the discrimnat is greater than zero or positive.

What is the perimeter?
I’ll give you brainiest however you spell it

Answers

Answer:

solution given :

side1[S1]=17cm

side2[S2]=21cm

side3[S3]=10cm

height[H]=8cm

we have .

perimeter of triangle[P]= sum of all sides

=S1+S2+S3=17+21+10=48cm is your answer

isosceles triangle ... area and y intercept comparison. WORTH 100 points !!!!

Answers

As A decreases,y approaches 2

What is the volume of the figure below?

A.180 centimeters cubed

B.540 centimeters cubed

C.380 centimeters cubed

D.360 centimeters cubed

Answers

Answer:

a

Step-by-step explanation:

The net of a square pyramid and its dimensions are shown in the diagram. What is the total surface area of the pyramid in square meters?

Answers

Answer: the general formula for the total surface area of a regular pyramid isbT. S. A. =12pl+B where p represents the perimeter of the base

Help me plssss
Find m < ABC.

Answers

Answer:

m<ABC=51°

Step-by-step explanation:

The inscribed angle is half the measure of the intercepted arc. This means that angle ABC=1/2 arc AC

Using this, let's make an equation

5x+11=(1/2)(16x-26)

5x+11=8x-13

11=3x-13

24=3x

x=8

Now go back to angle ABC and substitute for x

5(8)+11=51

m<ABC=51°

Answer:

m<ABC = 51

Step-by-step explanation:

m<ABC = 1/2 arc AC

(5x + 11) = 1/2(16x-26)

x=8

Plug it in

5(8) + 11 = 51

Each interior angle of a regular polygon is 100 degrees larger than the exterior angle determine the number of sides of the polygon

Answers

Answer:

9 sides

Step-by-step explanation:

Each interior angle of a regular polygon is 100 degrees larger than the exterior angle determine the number of sides of the polygon

Interior angle + exterior angle =

180°

Let x be the exterior angle.

Exterior angle = 180-x = 100 + x

= 180 - 100 = x + x

80 = 2x

x = 80/2

x = 40

Number of sides of the polygon =

= 360°/Exterior angle

Exterior angle = 40°

= 360/40 = 9 sides

A stack of books is 69 inches high. How high is it in feet and inches?

Answers

5 feet 7 inches. There’s 12 inches in a foot so all you have to do is 69 divided by 12

HELP PLEASE!!


If –8x + 2y = -4 is a true equation, what would be the value of 40x – 10y?

Answers

If u need to find the values for X & Y I believe this is the right answer

X = 1 —— Y = 2
-8x + 2y = -4
-8(1)+ 2(2) = -4

40x - 10y
40(1) - 10(2)
40 - 20 = 20

Harrison ,Tad and dale ride their bikes to school Harrison rides 3/4 mile,Tad rides 3/8 and dale rides 3/6 mile. Compare and order and distances the boys ride from least the greatest

Answers

Answer:

3/8 , 3/6. 3/4

Tad drove the least miles because the miles ridden is less than both 3/6 and 3/4 miles

Dale rode the second greatest mile because the miles ridden is greater than 3/8 but less than 3/4

Harrison rode the greatest mile because the miles ridden is greater than both 3/6 and 3/8

Step-by-step explanation:

to order the miles ridden , convert the fraction to decimals. to do this, divide the numerator by the denominator

3/4 = 0.75

3/6 = 0.5 miles

3/8 = 0.374

What is equivalent to 12:20

Answers

some equivalent could be-
6:10
24:40
36:60

Answer:

3:5 or 3/5

Step-by-step explanation:

12:20

3:5

it can be 3/5 also

pls do 1 and 2 thanks for helping me out

Answers

Answer:

1) Add 4

2) Add 6

Step-by-step explanation:

In Q1, you add 4 to the input to get the output.

13+4=17

20+4=24

In Q2, you add 6 to the input to get the output.

14+6=20

28+6=34

Hope this helps :)

What is the equation for the line?

Answers

Answer:

y=mx+b

so, y=1/4x+6

Step-by-step explanation:

plug in, then simplify the slope.

a rectangular garden has a perimeter of 100 meters. the length is four times it’s width. find the dimensions of the garden.

Answers

Answer:

Step-by-step explanation:

p = 100

l = 4w

l = 80

w = 20

80 = 20*4

Which is NOT true?
A
16 + 3 = 11 + 8
В.
16 = 16
C.
16 - 4 = 7 + 6
D
16 = 19-3

Answers

Answer:

C. 16 - 4 = 7 + 6

Step-by-step explanation:

16 - 4 = 12

7 + 6 = 13

12 does not equal 13.

Hope this helps! :)

Answer:

C

Step-by-step explanation:

A is true because 16 + 3 = 19 and 11 + 8 = 19

B is true because 16 = 16

C is Not true because 16 - 4 = 12 and 7 + 6 = 13

D is true because 19 - 3 = 16

Mark me Brainllest plz

HELP PLEASE 15 POINTS

Answers

All you have to do is rotate the left-hand triangle to match the right one, and you see that the angle degrees match up, so KL = 9.5

Find the missing angle

Answers

Answer:

If this is a parallelogram:

∠y = 112°

corners opposite the 112° corners = 68°      [(360° - 112° - 112°)/2 = 68°]

∠z = 68° - 40° = 28°

∠x = ∠z = 28°

Answer:

x = 28°, y = 112°, z = 28°

Step-by-step explanation:

suppose it's a parallelogram,

in a parallelogram, opposite angles are congruent: y = 112°

40 + 112 + x = 180

=> x = 28°

If 2 lines are cut by a transversal, then the alternate interior angles are congruent: x = z => 28° = z

There was 1/3 of a box of cereal left. Four brothers shared it evenly how much cereal did they all get​

Answers

Answer:

1/12

Step-by-step explanation:

1/3 divided by 4

keep it change it flip it

would change to 1/3 times 1/4 = 1/12

hope this helps!

Students recorded the amount of liquid in fluid Ounces each of them drank In one day. The box plot shows the summary of the results. Amount of Liquid (fluid Ounces) Which statement best describes the data represented in the box plot?​

Answers

Answer: The correct answer would be F. Half the students drank from 78 to 114 fluid ounces.

Step-by-step explanation:

The statement best describes the data represented in the box plot half the students drank from 78 to 114 fluid ounces. The correct option is F.

What is a box plot?

A rectangle is created to represent the second and third quartiles, normally with a vertical line inside to indicate the median value, in a simple way of presenting statistical data on a plot.

Given that students recorded the amount of liquid in fluid Ounces each of them drank In one day. The box plot shows the summary of the results. Amount of Liquid (fluid Ounces).

The highest and the lowest limit of the box plot is range from 78 to 114. The statement best describes the data represented in the box plot half the students drank from 78 to 114 fluid ounces.

Therefore, the correct option for the box plot will be F.

To know more about the Box plot follow

https://brainly.com/question/14513996

#SPJ2

someone help me pls. 24 points

Answers

The answer to this question is number 1 3 and 4
Choose a c and question d and you should be good

hello, and good morning ppl!!
what´s [tex]\sqrt{70* 70}[/tex]

Answers

Answer:

[tex]\sqrt{70\times70}[/tex]

[tex]70\times70=4900[/tex]

[tex]=\sqrt{4900}[/tex]

[tex]=70^2[/tex]

[tex]=\sqrt{70^{2} }[/tex]

[tex]=70[/tex]

OAmalOHopeO

if u can explain please :)

Answers

Answer:

it would be c because 12+8 = 20 and 24 is closer to 20

small perfect cubes.
2.
1. A company makes square picture frames
whose sides are integer lengths. Select the
area that would satisfy this requirement.
a) 14 in?
b) 16 in?
c) 18 in?
d) 1.5 in2

Answers

The answer for this question is c

two cords.
AD=92 and BC=140
What does m

Answers

Do you have a visual I can go based off of?

Use the figure to find the measure of <6. Plz help

Answers

Answer:

<6=82°

Step-by-step explanation:

jeoskzkkkkkkiwowowowoq

Answer: The answer is 82%

Step-by-step explanation: if you really pay attention and think its the same measurements.

Which of the following is most likely the next step in the series

Answers

Answer:

it should be answer "C"

Step-by-step explanation:

each picture it removes 1 point, first one has 4, next has 3, next has 2, ect.

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