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3 years ago

Please help i reaaly need help

Mathematics

1 answer:

Bond [772]3 years ago

7 0

Answer:

6/65

Step-by-step explanation:

using the proper calculator, and through solving.

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Hello I need help on this question!

Sloan [31]

Answer:

Step-by-step explanation:

Refer to attachment for marking of sides.

In the given figure , ∆ABC , ∆ABD and ∆ADC are right angled triangles . Therefore here we can use the Pythagoras theorem , as ,

$\longrightarrow$ base² + perpendicular² = hypotenuse ² .

• In ∆ABD , we have ;

$\longrightarrow$ AB² + BD² = AD²

$\longrightarrow$ AB² + x² = 10²

$\longrightarrow$ AB² = 10² - x²

$\longrightarrow$ AB² = 100 - x²

$\rule{200}2$

• Again in ∆ADC , we have ;

$\longrightarrow$ AC² + AD² = CD²

$\longrightarrow$ AC² = 20² - 10²

$\longrightarrow$ AC² = 400 - 100

$\longrightarrow$ AC² = 300

$\rule{200}2$

Again in ∆ABC , we have ,

$\longrightarrow$ AC² = AB² + BC²

Substituting the values from above ,

$\longrightarrow$ 300 = 100-x² + (20-x)²

$\longrightarrow$ 300 = 100 - x² + 400 + x² - 40x

$\longrightarrow$ 40x = 500 - 300

$\longrightarrow$ 40x = 200

$\longrightarrow$ x = 200/40

$\longrightarrow$ x = 5

<h3>Hence the required answer is 5 .</h3>

8 0

2 years ago

There is a bag filled with 3 blue and 4 red marbles.

Tasya [4]

Answer:

here

Step-by-step explanation:

The probability of getting 1 red is 4/7. The probability of getting 2 reds in a row is (4/7)^2 = 16/49.

4 0

3 years ago

PLS HELP ME GUYSSSS...

gregori [183]

Answer:

I believe it’s b could be wrong if I am I’m very sorry

Step-by-step explanation:

6 0

3 years ago

How do you factor this

Klio2033 [76]

Divide each side by 2a

You get 2( $a^{2}$ - 36)

7 0

3 years ago

Read 2 more answers

If a movie theater sells 400 tickets for a total of

Oksanka [162]

Answer:

they would make $25,500

Step-by-step explanation:

6,800/400=17

1,500*17=25,500

answer :$25,500

8 0

3 years ago