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2 years ago

Simplify (12) 12). (1 point)

Mathematics

1 answer:

ira [324]2 years ago

4 0

I guess 144 is the answer but still not sure about that

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ASAP PLEASE HELP WILL MARK AS BRAINLIST HELP

tester [92]

Answer:

38 degrees

Step-by-step explanation:

corresponding angles are equal

4 0

2 years ago

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

The graph of a system of equations is shown below . What system of equations represents the graph ?

True [87]

Answer:

Step-by-step explanation:

Plug the values of x into each equation

3 0

2 years ago

There is a pair of parallel sides in the following shape. What is the area of the shape?

Mama L [17]

Answer:

The given shape is Trapezium

Area of Trapezium= 1/2h(L1+L2)

=1/2×7×(11+3

=1/2×7×14

=49

Your answer is 49

3 0

1 year ago

The points (-5,r) and (-2,15) lie on a line with a slope of 3. Find the missing coordinate r. .

Komok [63]

I hope this helps you

5 0

3 years ago

Simplify (12) 12). (1 point)​

Simplify (12) 12). (1 point)