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3 years ago

Yo help maths problem work out value x thanks

Mathematics

2 answers:

aev [14]3 years ago

6 0

Answer:

x = 60°

Step-by-step explanation:

This is a congruent triangle, and the extension is parallel to one side, also making it 60°. All congruent triangles are equilateral.

Hope this helps! :-)

Nimfa-mama [501]3 years ago

6 0

Answer:

a) x = 60°

b) since it is an equilateral triangle, all 3 inside corner angles = 60°.

since the 2 horizontal lines are parallel, x = the same side interior angle of 60°

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Kinda want to cry right now.. Someone PLEASE help me.. I know there is someone out there smart enough.... 25 points and Brainlie

Svetlanka [38]

Answer:

a) Infinite solutions

b) No solutions

Step-by-step explanation:

First, know the following:

If the graphs intersect, there's only one solution.

If the graphs are parallel, there are no solutions.

If the graphs are the exact same line, there are infinite solutions.

For a):

Change the first equation into a linear one.

2x+3y=6

3y=-2x+6

$y=-\frac{2}{3} x+2$

Change the second equation into a linear one.

4x+6y=12
6y=-4x+12
$y=-\frac{2}{3} x+2$

Boom. You have two equations which are equal. As stated above, graphs on the exact same line have infinite solutions.

For b)

They are already in linear form so hurray.

$y=\frac{1}{5} x+2\\y=\frac{1}{5} x+10\\$

These lines are parallel since they have the SAME slope but a different y-intercept. As stated above, parallel lines have no solutions.

5 0

4 years ago

Which expression is quick to

Len [333]

Answer:

4⁰ is the answer

Step-by-step explanation:

because first you change the division sign to a multiplication sign because they are the same and then multiply the terms with same base by adding their exponent which looks like this 4⁵-⁷+²

then calculate the sum or difference and you get 4⁰ [hopefully this makes sense]

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3 years ago

Find the mirror image of the point (1,4) reflected on the line x=3

fiasKO [112]

hope it helps

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3 years ago

A boy is Y years old. His father is twice as old as he is. The sum of their ages is 63. How old is the boy?

Arturiano [62]

Hi!
Divide 63 by 3. You will get 21. That is the boys age. His father’s age is 42. When combined their age is 63.

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Read 2 more answers

Solve the quadratic in form equation x^4-14x^2+45=0

Anastaziya [24]

X⁴-14x²+45=0
(x²) ²-14x²+45=0
let y=x²
y²-14y+45=0
(y-9) (y-5) =0
y=9 or y=5
x²=9 or x²=5
x=±3 or x=±√5

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3 years ago