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3 years ago

Please help!? Work out the size of angle x. 42 degrees and 123 degrees?

Mathematics

2 answers:

vlabodo [156]3 years ago

5 0

Answer:

Sorry I don´t know the answer but I tried

Step-by-step explanation:

netineya [11]3 years ago

4 0

Answer:

x° = 99°

Step-by-step explanation:

Sum of angles on a straight line is 180°.

180° - 123° = 57° (sum of angles on a straight line)

Sum of angles in a triangle is 180°. Let u be the value of the unknown angle in the triangle.

57° + 42° + u° = 180°

u° = 180° - 57° - 42°

u° = 81°

Sum of angles on a straight line is 180°.

x° + 81° = 180°

x° = 180° - 81°

x° = 99°

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3 years ago

List the integers that satisfy both these inequalities, 2x+9 -12

Flura [38]

Answer:

x < -10.5

Step-by-step explanation:

list the integers that satisfy both these inequalities, 2x+9 <-12

Subtract 9 from both sides;

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2 years ago

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12345 [234]

Answer:

Step-by-step explanation:

You simplify it using radicals.

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2 years ago

Read 2 more answers

F(x)=|3x+5|+6 g(x)=7 find (f+g) (x).

horrorfan [7]

Answer:

$(f+g) (x)=\mid 3x+5\mid+13$

Step-by-step explanation:

Operation of Functions

Given:

$f(x)=\mid 3x+5\mid+6$

$g(x)=7$

The sum of (f+g) (x) is:

$(f+g) (x)=\mid 3x+5\mid+6+7$

We cannot operate with the expression inside the absolute bars, thus:

$\boxed{(f+g) (x)=\mid 3x+5\mid+13}$

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3 years ago

I REALLY NEED HELP PLEASEEE!!! I'LL GIVE BRAINLIEST! PLEASE HELP!

marishachu [46]

Answer:

I think the answer would be B.

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3 years ago